Re: [Emc-users] emc2 and kernel 2.6.20
The problem you report is fixed in CVS TRUNK: http://cvs.linuxcnc.org/cvs/emc2/src/rtapi/rtai_rtapi.c.diff?r1=1.34;r2=1.35 this patch should apply cleanly to the 2.1 branch. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 and kernel 2.6.20
paul_c wrote: Attached, configure make logs for emc2-2.1.7 released on July 30th. On Sat, Aug 04, 2007 at 07:46:38AM -0400, Jack Ensor wrote: Thanks, Paul. I already downloaded 2.1.7 via the update manager a day or so ago. What I don't understand is your file is only about 8K and when I updated it was over 5M. Why the difference or do I need to do something with what you sent me? Jack Ensor If you are using Ubuntu and installed 2.1.7 using the update manager, you don't need to do anything else. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT Encoder Question
On Mon, Aug 06, 2007 at 08:03:23PM -0700, richard harris wrote: Perhaps this is why Hardinge/Bandit cost so much half the wires go nowhere and and there to confuse you. Mission Accomplished. This is quite funny. Thanks for sharing your story. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Macro Language
In emc2, these are known as parameters. The # character is used to set them or use their values. A parameter can be set with gcode like #43=4000 and used like this: X10 Y10 F#43 Math is supported: #43=[sin[45] * 300] and can be used anywhere a number would be used: X10 Y10 F[sin[45]*300] Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Macro Language
On Wed, Aug 15, 2007 at 03:16:35PM +0200, Sven Mueller wrote: Ask user to define minimum and maximum X, Y and Z positions by moving the tooltip to the relevant positions manually or by entering the values numerically. Then use a procedural (possibly recursive) approach to scan the work pieces surface with a touch probe. O-words are powerful enough to represent looping and recursion. Even before O-words, variables and expressions were available in emc's gcode. However, there is no gcode for allow the user to jog to a position then signal the program to continue. In fact, allowing something like this is a big change because running a program and ready to jog were designed as mutually exclusive, and this is deeply ingrained in many places including the GUIs and the task controller. (there is a similar division between running a program and homing an axis which makes the occasionally requested execute homing procedure gcode difficult to implement too) Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Pluto (is not a planet)
The change in emc2.2 will be to allow any number of counts per index, so long as the maximum number of counts per servo cycle is within the permitted range. I made this change for sam and his 10160-count encoder, but I am not sure he's actually tested it with the updated version. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
When emc shows an error message with a line number, it refers to the physical line number in the file, not an O- or N-number. In emc 2.1, parameters are numbers, not letters. So, for instance, you can't write #D=1.4 you must write #7=1.4 and remember that later on, #7 refers to the o.d. of the part you're making. I spotted another error further down: Y-[#L] Unfortunately emc2 gcode omits the negation operator. You could write this as Y[-1*#8] or Y[0-#8] but what you wrote will not be accepted. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
I spotted several more errors in your program. #10 = 1.4( o.d ) ... #22 = 90(final arc angle) Parameters up to 30 are used for subroutine arguments. Use parameters above 30 for global variables: #40 = 1.4( o.d ) ... #52 = 90(final arc angle) o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub Numbers are required for the beginning and end of a subroutine, loop, or conditional. So your code should look more like: O200 sub ... O201 do ... O201 while ... O200 endsub It's the missing O100 for the first endsub that makes emc run off the end of the program without doing anything -- it's looking for O100 endsub and nothing else will do. while [#10] LT [#22] the correct syntax is O201 while [#10 LT #22] G1 Y[#14] F4 Brackets are not necessary here, but not harmful either N0500 [#17] = [#17] + 1(increment counter) The correct bracketing is: #17=[#17+1] In addition to the original, these are both incorrect: [#17]=[#17+1] #17=[#17]+1 G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] The correct bracketing is: G0 Z[sin[#10]/#20] if you want to compute what would be written sin(x)/y in many other languages, or G0 Z[sin[#10/#20]] if you want to compute what would be written sin(x/y) in many other languages. N2000 o200 call [#10][#14][#20][#21][#22] Inside O200 sub, you refer to #10, #14, #21, #21, and #22 which are the numbers of the variables you intended to be global. You could either omit these parameters from O200 call and use the global variable numbers once you renumber them to be above 30. Or, inside O200 sub you could refer to them as #1 through #5. On Thu, Aug 16, 2007 at 11:24:07PM +0100, [EMAIL PROTECTED] wrote: Hi again, Thanks to everyone who responded to my earlier mailing. As a result and after a considerable rewrite and correction I have now managed to get the script to load - however, it does nothing!! When I hit 'R' or press the play button, the screen flashes briefly and returns to the stop state - the machine doesn't even twitch... Do I have a problem in trying to run nested 'do - while' loops, its the only thing I can think of that might do nothing. there are no error messages displayed. Here is the rewritten script - any advice would be very welcome. Thanks.. Ian % #10 = 1.4( o.d ) #11 = 0.38(root dia) #12 = [[#10 - #11] / 2](cut depth) #13 = 5(number of teeth) #14 = 4(length of cut) #15 = [360/[#13]](angular increment) #16 = 0.09(cutter thickness) #17 = 1(counter) #18 = 1(tooth counter) #19 = 10(step angle for rounding) #20 = [[#10]/2](radius of work) #21 = 10(increment for rounding steps) #22 = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#12]/2] F4 G1 Y[#14] F4 G0 Y[0-[#14]] G1 X[#12] F4 G1 Y[#14] F4 G0 Y[0-[14]] endsub o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub o300 sub(rounds other half top of pinion leaf in several steps) do G0 Z[0-[[sin[#10]/[#20]] X[[cos[#10]/[#20]]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[0-[#21]] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call [#12][#14] N0500 [#17] = [#17] + 1(increment counter) N0600 G0 A[360/[#13]](rotate work one tooth distance) N0700 while [#17] LT 5 N0800 [#17] = 1(set counter back to 1) N0900 G0 A[0-[[#15]/3]](rotate by thickness of pinion leaf and) N1000 G0 Z[#16](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call [#12][#14] N1300 [#17] = [#17] + 1 N1400 G0 A[0-[360/[#13]]] N1500 while [#17] LT 5 N1600 [#17] = 1(set counter back to 1) N1700 G0 A[[#15]/6](move cutter to centre of leaf) N1800 G0 Z[0-[[#16]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call [#10][#14][#20][#21][#22] N2100 #17 = [#17] + 1 N2200 G0 A[360/[#13]] N2300 while #17 LT 5 N2400 #17 = 1(set counter back to 1) N2500 G0 Z0 A-90(set cutter and pinion leaf back to centre) N2600 G0 Z[[#16]/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call [#10][#14][#20][#21][#22] N2900 #17 = [#17] + 1 N3000 G0 A[0-[360/[#13]]] N3100 while #17 LT 5 N3200 #17 = 1(clean up) N3300 G0 X-20 Z40 Y50(retract tool) N3200 G30 % -- Best wishes, Ian Ian W.
Re: [Emc-users] Floating Z (solenoid on PCB Mill) Hal configuration
Thanks -- I imagine this will be helpful to anyone with a similar system. the only thing that comes to mind is that the time emc spends on the Z motion had better be long enough for the solenoid to completely lower -- does this take long on your machine, or does it snap right down to the right depth before you can blink? Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
On Fri, Aug 17, 2007 at 11:15:29AM +0100, [EMAIL PROTECTED] wrote: Just a couple of points I'm not completely clear on - in the above example, are line numbers needed on every line of the subroutine or just at the ends? O-numbers are required on lines where the flow control words such as sub, endsub, do, while are used. The interpreter uses these numbers to match up the beginning and end of a subroutine or a loop. O-numbers on other lines are not permitted, so this is incorrect gcode: O200 G0 X0 Y0 Z0 Also, would it be normal to use different variable numbers in the different subroutines, - i.e. 1-3 in subroutine o100 and 4-8 in subroutine o200 or would it confuse the subroutine call? I just wondered if the variables 1-3 are forgotten after the first subroutine ends or not and how starting at 4 might confuse the passing of variables from the second subroutine call? Each subroutine gets its first argument in #1, its second argument in #2, and so on up to a maximum of #30. At the end of the subroutine, the former values in #1 up to #30 are restored[1]. If there are values that you want to use from one call of o100 to the next, then they need to be stored in #31 and above. Oh, and is there an upper limit to the number of variables - could the global variables be numbered from 100 up.. Subroutine locals are #1 through #30 inclusive. #31 through #5000 are for global use, because they're neither modified by O- call nor restored by O- endsub. Above #5000 is reserved for internal interpreter stuff, like the result of a G38.2 probe, the origin of the coordinate systems, and so on. Jeff [1] at least, they're supposed to be, but this bug has been reported: http://sourceforge.net/tracker/index.php?func=detailaid=1772411group_id=6744atid=106744 - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
On Fri, Aug 17, 2007 at 05:31:38PM +0100, [EMAIL PROTECTED] wrote: N0300 do (first cut of pinion leaves) With do you need an O-number, and the matching O-number at the while Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Macro Language
That's right, the named parameters and named O-words are in the version that will be known as 2.2, not the current stable version. Anyone can download, compile, and use the development version, but it may not be a task for linux beginners: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_5_10_and_6_06_from_source Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Interactive machining
AXIS can automatically execute a filter program when loading a machinable file. You can also use the NML messages for issuing MDI commands to feed your program in line-by-line. (I just verified that, at least in the development version of emc 2, this doesn't kill blending altogether, though it's likely that blending degrades more quickly when fed by MDI than by file) Personally, I lean towards using filters because then I benefit from the preview plot. Using tcl as a gcode preprocessor: http://axis.unpy.net/01167315565 To make .gcl files openable in axis, put this in your inifile: PROGRAM_EXTENSION .gcl TCL-preprocessed gcode gcl = /path/to/gcode.tcl and make gcode.tcl executable Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepper Power Supplies
I glanced through that PDF and the numbers, formulas, and circuits look pretty typical for unregulated linear power supplies. Unregulated linear power supplies are considered the best kind for running steppers with chopper or current limiting stepper drivers. The power supply is simple, though the capacitors and transformers can be expensive. If you are not using gecko drives, the only calculation that is likely to vary is the desirable voltage: different driver circuits will have different minimum and maximum voltages. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Interactive machining
In emc, there are lots of ways to interact with the running system besides using gcode. These two ways are called NML and HAL. Using NML, for instance, any userspace program can retrieve the current position of the machine and lots of other details about it. Any information displayed in the AXIS GUI or in the EMC Status window comes from NML, and any action that AXIS takes when you press a key or click a button is achieved through NML. If you want to script a series of actions like those taken in the GUI (such as: home all axes, open gcode file, begin execution) then you want to write a program to send NML messages. Small examples of this in Python are in the included mdi script, or another script I called jdi: http://axis.unpy.net/01167419757 Using HAL, you can read and write values such as hardware inputs and outputs. There are a large number of predefined realtime components (such as 'and', 'or', 'compare', 'limit', 'timedelay', 'oneshot') as well as ClassicLadder which allows you to draw ladder diagrams. The inputs can depend on such things as 'is a program running', 'is a tool-change requested', and so on. By writing a new userspace or realtime HAL component, then connecting it with a .hal file, you can do a wide range of things. For instance, hal_input is a userspace HAL component written in python which makes any Linux-recognized input device into a series of HAL pins. With the proper .hal file, this allows you to jog your machine using a joypad, assign its buttons to cycle start, and so on. If I had not already written hal_input and had it bundled with emc2, anybody else who had the idea and the exepertise could have too. The problem is not that emc is not customizable and extensible in a wide variety of ways -- the problem is a lack of documentation and examples that are accessible to the typical user. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis File Open
On Sun, Aug 19, 2007 at 02:41:55PM -0500, John Thornton wrote: Is there a way to change the file open dialog in Axis to see .ngc files without regard to case? In the inifile section [FILTER], add a line that reads PROGRAM_EXTENSION = .[nN][gG][cC] rs274ngc gcode file you can add any other extensions you like in this area. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepper Power Supplies
You will need to make sure the power dissipated within the '317 is in the safe operating area -- Power dissipated is (Vin - Vout) * Ilim and becomes unmanagably large pretty quickly. You will certainly not be able to follow the guideline of 20x faceplate voltage from geckodrive documentation. Iout = Iin, so you must also size your DC power supply larger than documents written for geckodrive or other switching stepper drivers. Most stepper drivers use methods similar to a buck-mode switching regulator to give the desired amount of current in the motor windings--the motor winding itself is the inductor. This kind of driver has much lower power dissipation than a simple linear power supply. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis File Open
In one of the other sample configurations (sim/axis), the [FILTER] section looks like this: [FILTER] PROGRAM_EXTENSION = .png,.gif,.jpg Grayscale Depth Image PROGRAM_EXTENSION = .py Python Script png = image-to-gcode gif = image-to-gcode jpg = image-to-gcode py = python When you select a .png, .gif, or .jpg file it's sent to image-to-gcode http://linuxcnc.org/docs/2.1/html/gui/image-to-gcode/index.html and the gcode produced by image-to-gcode is then loaded into emc. When you load a .py file it is executed, and the lines it prints are treated as gcode. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Foam cutting configuration
[TRAJ]AXES should probably be set to 8. Here's the explanation from the documentation: One more than the number of the highest joint number in the system. For an XYZ machine, the joints are numbered 0, 1 and 2; in this case AXES should be 3. For an XYUV machine using ``trivial kinematics'', the V joint is numbered 8 and therefore AXES should be 9. For a machine with nontrivial kinematics (e.g., scarakins) this will generally be the number of controlled joints. http://linuxcnc.org/docs/devel/html/config/ini_config/index.html#hue432 In the .hal files, the number of stepgen should be 4: loadrt stepgen step_type=0,0,0,0 and the correspondance between axis numbers, axis names, and stepgen numbers will be: Axis Name Axis # Stepgen # X 0 0 Y 1 1 U 6 2 V 7 3 Thanks for jumping in and trying out this new only sparsely documented feature. I hope we can help you get it working. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Foam cutting configuration
On Mon, Aug 20, 2007 at 02:59:39PM -0500, Jeff Epler wrote: [TRAJ]AXES should probably be set to 8. Here's the explanation from the documentation: One more than the number of the highest joint number in the system. For an XYZ machine, the joints are numbered 0, 1 and 2; in this case AXES should be 3. For an XYUV machine using ``trivial kinematics'', the V joint is numbered 8 and therefore AXES should be 9. For a machine with nontrivial kinematics (e.g., scarakins) this will generally be the number of controlled joints. http://linuxcnc.org/docs/devel/html/config/ini_config/index.html#hue432 Just as I was posting this, another developer noticed that the documentation was incorrect. The corrected text reads: the V joint is numbered 7 and therefore AXES should be 8. I think the rest of what I said in my message is correct. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Foam cutting configuration
On Mon, Aug 20, 2007 at 03:03:27PM -0600, Ryan Hulsker wrote: Ok, thanks for your help (Chris too), I seem to have it working now. Yay! I am excited to hear it. If you want to, create a page on our wiki (wiki.linuxcnc.org, follow instructions on page BasicSteps to be able to add edit pages) with some information photos when you have them. Other people have done this with their new or unusual types of machines: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Alex_Joni's_Toy http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Koppi's_Toy A question about feed rates. From the quick testing I have just done it looks like it always tries to apply the feed rate to the XY axes, and scales the feed rate for the UV to match so that they all reach their end point at the same time. Unless your feed rate at XY causes the UV to overrun the max, or any individual axis to overrun its max speed, then the XY is scaled down until UV are running at their max. Does this sound correct? Seems like the right thing to do to me. Just wanted to make sure that it is treating the XY and UV as two separate pairs from which to calculate 2 separate combined feed rates to apply the max. The rules are a bit complex. Chris described them like this (I think some variation of this is in the documentation as well): If any of XYZ are moving, F is units per minute in the XYZ cartesian system, and all other axes (UVWABC) move so as to start and stop in a coordinated fashion. Otherwise: If any of UVW are moving, F is units per minute in the UVW cartesian system, and all other axes (ABC) move so as to start and stop in a coordinated fashion. Otherwise: The move is pure rotary motion and the F word is in rotary units instead of linear, in the ABC (pseudo)cartesian system, as originally described in NGC 2.1.2.5(B,C) : http://www.linuxcnc.org/handbook/RS274NGC_3/RS274NGC_32a.html#1010695 if emc violates a machine constraint (e.g., moves V at 2 units/second instead of the inifile max of 1 unit/second) it's a bug, please report it. Before emc 2.0.x, we did extensive testing in 4-axis XYZA setups to eliminate these bugs, but it would not be surprising to learn that there are some added by the 9 axis code. As far as writing gcode for XYUV goes, you may wish to consider G93 inverse time feed mode, where the F-number is the number of minutes the move should take to complete, and it is specified on each line with a G0 move. CAM software may have a more complete view of just how the cutter is moving through the foam, and expressing the desired feed rate in minutes per move may be better than in XY inches per minute if XY moves, or UV inches per minute otherwise. I am assuming that cutter compensation to handle a variable width kerf depending on feed rate, and applying it to 2 different sets of axes is not handled by standard g-code? So I am planning on incorporating it into my g-code generator. That's right, cutter compensation remains XY-only. Again, your CAM hopefully has a more complete idea just what is going on, and can apply appropriate offsets to X, Y, U and V. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] m101 Turret Program
G4 delays in gcode and sleep delays in shell scripts are both non-realtime. The delay you get will always be at least .2 seconds, but may be longer. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Interactive machining
On Wed, Aug 22, 2007 at 02:35:03AM +0200, Michel Gouget wrote:
Is it difficult, very difficult or extremely difficult to add an NML+HAL
library to python?
It's already there -- it's the basis for such neat things as AXIS, the
hal_input userspace driver, and so on.
Help on module hal:
NAME
hal - Interface to emc2's hal
FILE
/usr/lib/python2.4/site-packages/hal.so
DESCRIPTION
This module allows the creation of userspace HAL components in Python.
This includes pins and parameters of the various HAL types.
Typical usage:
import hal, time
h = hal.component(component-name)
# create pins and parameters with calls to h.newpin and h.newparam
h.newpin(in, hal.HAL_FLOAT, hal.HAL_IN)
h.newpin(out, hal.HAL_FLOAT, hal.HAL_OUT)
h.ready() # mark the component as 'ready'
try:
while 1:
# act on changed input pins; update values on output pins
time.sleep(1)
h['out'] = h['in']
except KeyboardInterrupt: pass
When the component is requested to exit with 'halcmd unload', a
KeyboardInterrupt exception will be raised.
CLASSES
__builtin__.object
component
exceptions.Exception
error
class component(__builtin__.object)
| HAL Component
|
| Methods defined here:
|
| __delattr__(...)
| x.__delattr__('name') == del x.name
|
| __delitem__(...)
| x.__delitem__(y) == del x[y]
|
| __getattribute__(...)
| x.__getattribute__('name') == x.name
|
| __getitem__(...)
| x.__getitem__(y) == x[y]
|
| __init__(...)
| x.__init__(...) initializes x; see x.__class__.__doc__ for signature
|
| __len__(...)
| x.__len__() == len(x)
|
| __repr__(...)
| x.__repr__() == repr(x)
|
| __setattr__(...)
| x.__setattr__('name', value) == x.name = value
|
| __setitem__(...)
| x.__setitem__(i, y) == x[i]=y
|
| exit(...)
| Call hal_exit
|
| newparam(...)
| Create a new parameter
|
| newpin(...)
| Create a new pin
|
| ready(...)
| Call hal_ready
|
| setprefix(...)
| Set the prefix for newly created pins and parameters
|
| --
| Data and other attributes defined here:
|
| __new__ = built-in method __new__ of type object
| T.__new__(S, ...) - a new object with type S, a subtype of T
class error(exceptions.Exception)
| Methods inherited from exceptions.Exception:
|
| __getitem__(...)
|
| __init__(...)
|
| __str__(...)
FUNCTIONS
pin_has_writer(...)
Return a FALSE value if a pin has no writers and TRUE if it does
DATA
HAL_BIT = 1
HAL_FLOAT = 2
HAL_IN = 16
HAL_IO = 48
HAL_OUT = 32
HAL_RO = 16
HAL_RW = 48
HAL_S32 = 3
HAL_U32 = 4
Help on module emc:
NAME
emc - Interface to EMC
FILE
/usr/lib/python2.4/site-packages/emc.so
CLASSES
__builtin__.object
command
error_channel
ini
positionlogger
stat
exceptions.RuntimeError(exceptions.StandardError)
error
class command(__builtin__.object)
| Methods defined here:
|
| __init__(...)
| x.__init__(...) initializes x; see x.__class__.__doc__ for signature
|
| abort(...)
|
| auto(...)
|
| brake(...)
|
| debug(...)
|
| feedrate(...)
|
| flood(...)
|
| home(...)
|
| jog(...)
|
| load_tool_table(...)
|
| mdi(...)
|
| mist(...)
|
| mode(...)
|
| override_limits(...)
|
| program_open(...)
|
| reset_interpreter(...)
|
| set_block_delete(...)
|
| set_optional_stop(...)
|
| spindle(...)
|
| spindleoverride(...)
|
| state(...)
|
| teleop_enable(...)
|
| teleop_vector(...)
|
| tool_offset(...)
|
| traj_mode(...)
|
| wait_complete(...)
|
| --
| Data and other attributes defined here:
|
| __new__ = built-in method __new__ of type object
| T.__new__(S, ...) - a new object with type S, a subtype of T
|
| serial = member 'serial' of 'emc.command' objects
class error(exceptions.RuntimeError)
| Method resolution order:
| error
| exceptions.RuntimeError
| exceptions.StandardError
| exceptions.Exception
|
| Methods inherited from
Re: [Emc-users] intro and question about Jeff Epler's Etch CNC servo driver board
On Thu, Aug 23, 2007 at 10:40:02AM -0600, Sebastian Kuzminsky wrote: About the circuit, what is the purpose of resistors R1-R4? They look like pull-up resistors for the encoder outputs. The encoder I had used OC drivers, so the resistors were the recommended circuit. If your encoder has push-pull drivers, then the resistor may be inappropriate or unneeded. If in doubt, refer to the documentation for your encoder and follow its recommended circuit design. I have only a vague understanding of back EMF off electric motors. I believe that the diodes D2-D9 are there to protect the L298 and the power supply from back EMF. Is that right? How does that work? (I know, vague question, sorry.) The reasons are exactly the same as for a reverse diode in a simple relay: when the H-bridge switch turns off, the voltage across the inductor rises. The diode allows this voltage to be dumped into the supply rails, limiting the reverse voltage across the switch to a diode drop. The other reason is simply that this is the recommended setup in the L298 datasheet. If I hook up a power supply to the servo drive circuit, then also connect the computer's parallel port to the drive circuit, isn't that creating a giant ground loop? The house wiring ground goes through the computer power supply, out the parallel port, to the drive circuit ground, which is also connected to the motor power supply ground, and back to the house wiring ground. Isn't that bad? Is it something to worry about? Should there be optical isolation somewhere to interrupt the ground loop? This setup, without isolation or attention to grould looks has worked OK in the etch-servo (though honestly there's no way I will tell if some quadrature transitions were lost, as sloppy as that machine is). It also worked OK for a sherline lathe retrofit, though noise reared its head when using an SSR to switch the spindle motor on and off. That may or may not scale to larger systems with bigger voltages, currents, and noise sources. For a real machine, you want to pay careful attention to grounding and isolation for safety reasons as well as reliability reasons, and I do not have the depth of knowledge to answer those questions well. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Pumakins module missing
To use the puma kinematics, you need to compile the complete development version of emc2, not just pull a few files from the development version and add them to your installed version. You can compile the development version without disturbing any of the files from your installed version. Instructions are located on our wiki: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_5_10_and_6_06_from_source Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Has Anyone Seen Comp?
It is part of the emc2-dev package Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Has Anyone Seen Comp?
On Sat, Aug 25, 2007 at 05:23:52PM -0400, Stephen Wille Padnos wrote: Kirk Wallace wrote: I did a find on my Ubuntu 6.06/EMC 2.1.7 install and can't find comp. I would like to use it to compile a new component. Thanks. I think you need a full checkout to use comp. Comp is really a preprocessor that outputs C code, which is then compiled like any other component. It's necessary to use the same compiler and settings when compiling a component, so distributing comp separately would be a chore, I think. If you follow the instructions on the wiki here http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_5_10_and_6_06_from_source, you should be able to get things going. It's easy, as long as you have a net connection :) Incorrect -- you should be able to develop new hal realtime components just by installing emc2-dev, not by recompiling all of emc2 from source. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] etch-servo
On Wed, Aug 29, 2007 at 10:50:02AM -0600, Sebastian Kuzminsky wrote: I'm looking at the etch-servo config in emc2-trunk, and I'm not seeing pwmgen.*.pwm-freq getting set. Does that mean it's left at 0, and pwmgen does PDM? Yes, I think that's true. Because the on- and off- times are long (1 base-period, typically 20us to 50us -- I don't remember the actual setting used in etch-servo) this is not a problem for typical transistor drivers like the l298 I used. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Turret.comp Install Errors
Yet again you had me scratching my head.
state is a name used internally by comp, so you get weird compile
errors when you also use it for a parameter name. I changed the
name to state_ through the whole file, and also fixed a few other
typos. You can find my corrected version below.
Jeff
component turret This component controls the turret hardware for Kirk
Wallace's Hardinge HNC turret. It moves the turret to the last T word value
entered. (Invoked by M6);
pin in bit tool_change A .hal file should connect this to
iocontrol.X.tool-change.;
pin in bit match A .hal file should connect this to s32equal.X.out which
should be the result of a check for a match between the requested and current
tool.;
pin out bit tool_changed A .hal file should connect this to
iocontrol.X.tool-changed to indicate to EMC when the position change is
complete.;
pin out bit seek Connect this pin via .hal file to the turret rotate solenoid
signal.;
pin out bit stop Connect this pin via .hal file to the turret stop solenoid
signal.;
param rw s32 state_ This parameter holds the value of the current state of the
turret change process; idle, seeking, stopping, parking.;
param rw s32 settle This parameter holds the initial value and then the count
down of servo periods to allow settling of the turret mechanism before invoking
next state proceedure.;
param r s32 stop_settle This is the initial settle time in servo periods
between activating the stop solenoid and when the turret comes to rest.;
param r s32 park_settle This is the initial settle time in servo periods
between deactivating the turret rotate solenoid and when the turret descends to
the park position.;
function _ nofp;
;;
MODULE_LICENSE(GPL);
FUNCTION(_) {
if (tool_change) {
if (!match) {
switch (state_) {
case 1:
seek=1;
state_=2;
break;
case 2:
if (match) {
stop=1;
settle=stop_settle;
state_=3;
}
break;
case 3:
--settle;
if (settle=0) {
seek=0;
settle=park_settle;
state_=4;
}
break;
case 4:
--settle;
if (settle=0) {
stop=0;
state_=1;
tool_changed=1;
}
break;
default:
state_=1;
break;
}
}
}
}
-
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Re: [Emc-users] Axix Touchoff data
On Mon, Sep 03, 2007 at 10:54:19AM -0400, Jack Ensor wrote: Where is Touchoff data stored? In the rs274 parameters set aside for this purpose. http://linuxcnc.org/docs/2.1/html/gcode/main/#sub:Parameters axis touch off simply issues a 'G10 L2' command as if in MDI mode. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
On Wed, Sep 05, 2007 at 09:45:49PM +0200, Gerhard Pircher wrote: The Mesa card looks interesting. Do you use it with the SoftDMC Digital Motion Control Firmware? With emc2, the hostmot firmware is used. With hostmot, emc sends velocity commands and reads encoder counts, performing closed-loop operation and pid control in the emc software. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Xylotex Stepper Board
I'm using a xylotex 3-axis board. I'm pretty happy with it so far. For whatever reason, my machine moves reliably at higher speeds (70ipm instead of 40ipm) in half-step mode than 1/8 step mode, though most people seem to prefer using the board in 1/8 step configuration. The connections are very simple: PC to xylotex with DB25 M-F cable; 24VDC connection from power supply to xylotex; 4-wire connections from xylotex to each motor. In stepper_inch.ini or stepper_mm.ini, change standard_pinout.hal to xylotex_pinout.hal There are probably other all-in-one boards, and emc should work with any board that takes step+direction inputs that match the PC parport for voltage and current requirements. Geckos also work fine, though I understand that the other models *besides* 203V have input current requirements that may not be met by all parports, leading to the use of an extra board in between with its own 5V supply and line driver IC. Someone who's actually used geckos should add them to the wiki. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Compiling a new kinematic
'comp' is the tool for compiling HAL components that are implemented in a single .c file. Kinematics modules are one kind of HAL component. If you are using the package version, install emc2-dev and build-essential packages using Package Manager or the commandline. Then, use 'comp' to compile and install a new kinematics module: comp --compile yourkins.c # compile yourkins.c or sudo comp --install yourkins.c # compile and install yourkins.c These instructions should work for emc 2.1.7 and for the development version of emc. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Homing - zeroing - touch off
There are a bunch of different things that affect the relationship between machine coordinates and gcode coordinates. G5x coordinate systems: At any time, one G5x coordinate system is in effect. Normally the G54 coordinate is in effect at emc startup and after readahead reaches M2. You can set the offsets of the nine program coordinate systems using G10 L2 Pn (n is the number of the coordinate system) with values for the axes in terms of the absolute coordinate system. G54 corresponds to P1, G55 to P2, and so on. Generally, G5x offsets are saved even when exiting emc. G92 coordinate offset The G92 coordinate offset is programmed by G92, and also affected by M2, G92.1, G92.2 and G92.3 as documented in the gcode manual. http://linuxcnc.org/docs/html/gcode/main/#sub:G92_-G92.1_-G92.2_ Particularly due to the way the G92 coordinate offset is disabled if the interpreter readahead reaches M2, many users find that the behavior of G92 is confusing. G43 Tool offset When G43 is in effect, the Z coordinate is modified by the tool length. On lathes, G43 can offset both X and Z All three of these (G5x coordinate system (one is always in effect), G92 coordinate offset (unless disabled by G92.1 or G92.2), and G43 tool offset (when enabled)) are combined to get the coordinate value shown on the AXIS DRO when Relative coordinates are selected. When the Relative coordinates are different than the Machine coordinates, AXIS draws a cyan icon at the machine origin and the tricolor coordinate system marker at the origin of the relative coordinate system. Home (GUI button): In a machine with home switches, use these home switches to move the axis to its home location. In a machine without home switches, notify emc that the current axis position has been manually jogged to the home position. Even in a machine without home switches, you should establish and use a home position. After homing, the inifile soft limits are applied, so you can be confident that the machine will not walk the table right off the end of the leadscrew. After invoking Home, the value shown could be nonzero for several reasons: * A coordinate system or offset is being added to the axis value * The inifile HOME is not 0 Touch Off (GUI button): Touch Off is a way of setting the G54 coordinate system based on the current location of the axis and the entered value. Touch Off ignores G93 coordinate offsets even if they are currently in effect. So if you're lost, what should you do? * Move to the machine origin. MDI: G53 G0 X0Y0Z0 (A0B0C0) * Clear the G92 coordinate offset.MDI: G92.1 * Use the G54 coordinate system. MDI: G54 * Set the G54 coordinate system to be identical to the machine coordinate system. MDI: G10 L2 P1 X0Y0Z0 (A0B0C0) * Turn off tool offsets. MDI: G49 * Turn on Relative coordinate display from the menu now, you should be at machine origin (0,0,0), and the relative coordinate system should be the same as the machine coordinate system. What should you do to set your origin on material? For each axis, * Jog to a known or measurable location with respect to the material * Invoke Touch Off, and enter the current position with respect to the material For example, when I mill circuit boards, (0,0) is almost always the lower right-hand corner of the board. I jog X and Y to this corner of the circuit board blank, and Touch Off each one of these and enter a value of 0. This measurement is almost never critical, as I'm cutting small boards (typically under 3x4) from a 4x6 blank. With tool inserted, I move to the approximate middle of the area being milled. Then using a feeler gauge I jog Z down towards the material, switching to small incremental moves as I get close. When the feeler gauge just passes between the board and the tool, I Touch Off and enter the thickness of the feeler gauge (e.g., 0.0020). I don't have repeatable tool length, so I don't use G43 while cutting; if I did, I'd also enable G43 while doing the Z Touch Off. This got long winded, so if you got this far give yourself a pat on the back. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Touch Off
Another user has reported a similar problem, but I've never been able to reproduce it on my machine. And that means I've been unable to try fixing it. :( Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] User Interface
On Wed, Sep 19, 2007 at 07:17:31AM +1000, AKSYS Tech Pty Ltd wrote: Hi, I have been playing around with the different user interfaces for EMC and have a couple of questions. I was initially interested in using the MINI interface but I would like to be able to backplot my code before actually running the machine - is this possible? Mini does not have a preview plot feature. AXIS is the only GUI with this capability. My other question about the MINI interface is , can it be used for lathe work i.e threading??? Yes, the dialect of g-code is exactly the same no matter which GUI you use. is there a way to edit the tool table via the user interface, or do you have to manually open the tool file and edit it there? AXIS doesn't have a tool-table editor built in. In the upcoming EMC 2.2 it will be possible to re-load the tool table and open an external tool editor (such as the gedit text editor) from the menu in AXIS. Also with AXIS is there a way to set store Work Offsets other than G54? In the upcoming EMC 2.2 it will be possible to set any G5x coordinate system offset using Touch Off. In 2.1.7 and earlier, only the G54 coordinate system can be set this way. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] User Interface
On Wed, Sep 19, 2007 at 08:39:00AM -0500, Andre' Blanchard wrote: AXIS doesn't have a tool-table editor built in. In the upcoming EMC 2.2 it will be possible to re-load the tool table and open an external tool editor (such as the gedit text editor) from the menu in AXIS. Is that going to be limited to the tool offsets? AXIS will support opening an editor on the tool offsets and on the loaded gcode file. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] User Interface
On Wed, Sep 19, 2007 at 11:06:40AM -0400, Ed wrote: Is there a timeframe? No. This spring I was saying this summer, but now I'm saying hopefully this fall. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ax5214h troubles
Indeed -- I don't have such a card to test. (I didn't read your earlier message closely enough and missed the fact that this is merely a card similar to the axiom card) I think I understand why the original configuration outb()s are written in that order: In the new order, the outputs are enabled for a short time before they are driven with the 0xff value. Perhaps a better sequence would be outb(0xff, board-base_addr+0); outb(0xff, board-base_addr+1); outb(0xff, board-base_addr+2); outb(board-port1config, board-base_addr+3); + outb(0xff, board-base_addr+0); + outb(0xff, board-base_addr+1); + outb(0xff, board-base_addr+2); so that 8255-clones which accept output values while configured as inputs do not drive unknown values after the switch, but boards which don't accept output values while in input mode are driven with the proper initial output value as early as possible. Does this order work on your card? As for setting the 0x80 bit of the configuration register, if it turns out the Access and Axiom boards can't be satisfied with a single setting then I suppose a module parameter could be used for that purpose. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Keyboard shortcuts - Axis
Put this line in the file ~/.axisrc, with no whitespace at the beginning of the line: bind_axis(Right, Left, 0) Create the file ~/.axisrc if it doesn't exist yet. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Desktop CNC Website Information
On Tue, Oct 02, 2007 at 02:20:26PM -0500, Sam Sokolik wrote: the only other thing I can think of is that the max step/sec is a bit on the low side. But I don't know a good safe step rate to put on paper. (~20k/s w/Parport) - expecially because 2.2 will have doublefreq which will increase the step rate a bit more. A ~108kHz square wave on a standard PC parallel port, produced by emc TRUNK and captured on a scope: http://emergent.unpy.net/index.cgi-files/sandbox/img_7714-medium.jpg the scope measured the period as 9.182uS (but this figure varied as the scope ran); the pc says the period should be 9.219uS. This was not a full emc; it was the simplest hal configuration that will toggle an output pin at high rate: loadrt threads name1=fast period1=1 fp1=0 loadrt hal_parport cfg=0x378 addf parport.0.write fast addf parport.0.reset fast setp parport.0.pin-02-out 1 setp parport.0.pin-02-out-reset 1 start Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] StepTimingCalculator on Wiki
By their nature, anyone should add something to the wiki that he feels is of value. For text edits, a history is preserved; for uploaded files this is not the case. So if you're not entirely sure your new spreadsheet is an improvement, upload it with a different filename and add a descriptive paragraph and link to the new version of the spreadsheet. But to answer your question, John Kasunich is the guy who actually created the spreadsheet. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Installing EMC2
The emc official packages, and the EMC2 CD are Ubuntu 6.06. These packages cannot be installed on Ubuntu 7.04. If you want easy you will want to reinstall from the CD, either replacing 7.04 or as a dual-boot setup. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC2.2
I hope that 2.2 will be out this calendar year. When it is available, you'll have a choice of upgrading to it on your existing installation (though not if it's Ubuntu 5.10), or installing fresh from a new Live CD image that will be released at about the same time. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Thanks, and by the way here's yet another question!!!!
Make sure you issue a nonzero spindle speed, even if your spindle has no speed control: M3 S1000 Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] howto compile emc on mips
emc 1.2.0 is an old and no longer developed version of emc. The current version of emc2 doesn't have any file named smallmath.o. the contents of smallmath.o are uninteresting: 00cc W acos 00cc T __acos 00c0 W atan 00c0 T __atan 0050 W cos 0050 T __cos T __ieee754_acos 0020 W sin 0020 T __sin 0080 W sincos 0080 T __sincos these functions should be offered by the standard -lm math library on any standard system. The comment when smallmath.o was added was this: Made some mods to get EMC working under RedHat 7, against doctors orders. (They are ugly and embarassing so don't look at them.) .. so it's probably not relevant to a mips system. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Restoring a saved HAL file
On Mon, Oct 15, 2007 at 08:31:03AM -0500, John Thornton wrote: I'm trying to restore a saved HAL file in the terminal window. following the HAL TUTORIAL Chap 2.3.6 I get the following error after issuing this command: linux:~$ halcmd -f saved.hal RAPTI: ERROR: could not open shared memory (error=2) HAL: ERROR: rtapi init failed calcmd: hal_init() failed: -9 NOTE: 'rtapi' kernel module must be loaded I've searched the hal doc and can not find any information on this. Looks like this part of the documentation needs to be updated. Try this instead: halrun -I -f saved.hal to start the realtime environment (halrun), load saved.hal (-f saved.hal), then show the 'halcmd:' prompt (-I). You'll need to issue 'start' once at the halcmd prompt to start the realtime threads; the 'start' command isn't written by 'halcmd save'. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Threading without feedback?
emc's motion controller uses the following HAL pins during the G33 spindle synchronized move and G76 threading canned cycle: motion.spindle-revs motion.spindle-index-enable These must behave like the canonical encoder interface pins 'position' and 'index-enable', described here: http://linuxcnc.org/docs/devel/html/hal_general_ref.html#sec:CanonEncoder It is possible to imagine a component which reads an index input in the fast thread and produces a guessed spindle-revs value every servo period based on the expectation that the spindle velocity is constant during the threading moves. However, no such component has been contributed to emc. If you develop this component, please consider contributing it: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ContributedComponents Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HNC Lathe Spindle Sync Motion
It may be useful to refer to the docs, which I believe are up to date http://linuxcnc.org/docs/devel/html/gcode_main.html#sec:G33,-G33.1:-Spindle-Synchronized .. but perhaps this conversation can help improve the documentation. On Mon, Oct 15, 2007 at 11:33:27AM -0700, Kirk Wallace wrote: - Can a K be applied to each axis? Such as G33 z1.0 k0.050 x0.100 k0.010. I suppose, I could just try it and see what happens. No, there can be only one K-word. The K-word gives the distance moved for each revolution of the spindle. For instance, if you are at X=0 Z=0 and command G33 X3 Z4 K.1 then the move will be on a sloped line with a total length of 5 (sqrt(3*3 + 4.4)). During that time, the spindle will turn 5/.1 = 50 times. The first turn will be 1/50th of the total distance, which means that the machine will reach X.06 Z.08 at that time. Look at it another way: Say you want to command the move from X=0 Z=0 to X=3 Z=4, but with 10 revolutions per Z moved. That's 40 total revolutions, but the length of the move is 5. Use K[40/5] = K.125. - How could subsequent G33's latch onto the last index of the previous G33 before the current G33 is invoked? What persists between G33 calls? When the program has a G33 after a non-synchronized motion, it waits for an index pulse before beginning the synchronized motion: G0 ... ( waits for index here ) G33 ... When the program has two G33s in a row, the second one starts at whatever angle the first one ended: G33 ... ( no wait for index here ) G33 ... So, for instance, these two are equivalent: G0 X0 Y0 Z0 G33 X.25 K.1 G33 X1 K.1 and G0 X0 Y0 Z0 G33 X1 K.1 even though in the first case, the spindle is part way through a revolution when the X.25 move finished. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC2 version on Live CD?
The latest version of the Live CD includes either 2.1.6 or 2.1.7, I'm not sure which. There are several ways to find the version of emc: * If you use AXIS as your user interface, Help About shows the version number * If you start emc from the terminal window, the version is printed * If you issue the following command, you can see what version of the package is installed: dpkg -l emc2 Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Using Match8
You must addf match8.0 partest_thread or its outputs will never be updated. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis Jog Speed
AXIS uses an logarithmic relationship between the position of the jog slider and the jog speed in inches per minute. At the left hand side, the jog speeds are fairly close together (e.g., .001 and .002 in/min) and at the right hand side the speeds are further apart (e.g., 296 and 300 in/min). The exact numbers available depend on the axis SCALE (to set the low end to about one count per second) and MAX_LINEAR_VELOCITY (to set the high end). Whatever value you give in the inifile is converted to one of the two nearest values actually available on the slider. The intent is not to have exact speeds selectable for jogging, but to have a wide range of speeds available to be suitable for quick positioning (high end) and fine-tuning (low and middle end). Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] upgradeing from emc testing to emc2.17
Here's a document which shows what configuration changes are needed to go from emc2.0.x to emc 2.1.7: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UPDATING I don't think there's any document that lists changes in configuration files from the very old TESTING releases that came before 2.0.0. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minor Mesa 5I20 related errors in EMC2 user manual
emc uses this equation to get pwmRate from dacRate: pCard16-pwmRate = dacRate * 65536 / 1000 * 1024 / 33000; so the 33MHz SYSCLK is hardcoded at the moment. That makes the max usable Hz value 32226, giving a pwmRate of 65534 and an actual rate of 32225.79Hz. I've updated the documentation to reflect this. I started to add support for using SYSCLK instead of the hardcoded 33MHz but I am not able to test on a 5i20 card at the present time so it's probably best if I leave things alone. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Starting a new project
the classic ladder in emc can't communicate directly to modbus -- it only communicates to HAL pins. That option should not appear. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] minor Mesa 5I20 related errors in EMC2 user manual
Thanks for the offer. I have one, but it's not in a working PC at the moment. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problems Compiling/Running - Update
EMC 2.1.x is unlikely to work on Ubuntu 7.10. However, the development version has been improved in various ways for compatability with newer versions of Ubuntu. On Ubuntu 7.10 the default amount of locked memory for regular users is too low. You can fix that problem by adding the line hard memlock 20480 to /etc/security/limits.conf as root. (it's necessary to log out completely after making this change) However, the result of this problem is not an insmod error, but another error about creating shared memory areas which I don't recall. In the case of insmod errors, the last few lines shown by dmesg are usually most useful in determining what is going on. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] var file source listing
On Mon, Oct 29, 2007 at 09:58:30AM -0500, Cecil Thomas wrote: I guess I'm looking for the reverse directory for the .var file. Please see: http://www.linuxcnc.org/docview/2.2/html/gcode_main.html#sub:Parameters - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problems Compiling/Running - Update
A system call trace (produced by using strace) or a backtrace at the time of the segmentation fault (produced using gdb) would be helpful in pinpointing the location of the problem. You can find information how to use these utilities on many pages on the internet. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problems Compiling/Running - Update
The following emc2.rules file, which is installed when you install a .deb of emc2 (but not by 'make install), makes the rtai_shm device accessible to all users: ~/emc2-src/debian/extras-Ubuntu-6.06/etc/udev/rules.d$ cat emc2.rules KERNEL==RTAI_SHM SYMLINK==rtai_shm MODE=0666 Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] steplen, stepspace, dirsetup, dirhold
These items would be in .hal files. Usually the default values (1 BASE_PERIOD) are OK for most stepper drivers, so they are omitted from the default configuration files. If you add these lines, they would be of the form setp stepgen.0.steplen VALUE where VALUE is the number of BASE_PERIODs (and so on for each stepgen) In emc 2.2.0, VALUE will be in nanoseconds instead of BASE_PERIODs. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] new kinematics
For source code exploration there are a few more things that it's nice to be aware of: * lxr web page, which allows you to see definition and use of any identifier, http://cvs.linuxcnc.org/lxr * tags, search for the definition of any identifier from vi or emacs (make tags target in src to set up, :tag or M-x tag or other editor-specific functionality to use) * swish, full-text search of all the source. (make swish to set up, run scripts/swish to use. The output can be interpreted by many editors to automatically go to each file and line where the text is matched. If you are using vim and :source .vimrc in the emc2/src directory, :tag refers to the tags file built by make tags and :grep runs the swish full-index search. Personally, I find tags and swish most useful, because they can run directly in my editor and pull up information about where identifiers are defined or used in a second or so. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Hardware suggestions for EMC
On Sun, Nov 04, 2007 at 01:20:34PM +0100, [EMAIL PROTECTED] wrote: Hi I have a milling machine here which i want to control with emc. Fo the first tests im using the normal parallel port adapter. I'm, however, afraid of loosing steps on my stepping motors so im planing to use some quadratur encoder to also measure the position of the axes. My questions now are: 1. Is it better to use a dedicated board which is able to control the stepper motor and readout the quadratur encoders. The board is connected via usb (usbserial modul) and the board can send a command for either speed or steps of the motor. No USB hardware is supported by emc at this time. 2. How would i readout quadratur encoder on the parallel port Use the 'encoder' module. After installing emc, man 9 encoder. 3. How many stepper motor can i control maximum with one parallelport and emc? Each stepper motor requires 2 hardware output pin. The parallel port has 13. So if no pins are required for other purposes, 6 stepper motors can be controlled, with one output pin left over. I know that question one implies writing a adaper for the hal. I have basic experience in xenomai programming. Would it be hard to implement the usb board into emc? You'd need a very thorough, low-level knowledge of USB in order to make a USB driver fit the HAL model (hardware read and write takes place according to function position in HAL threads, not based on interrupts or DMA). I don't even know whether this is possible. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Released: EMC 2.2.0
I'm pleased to announce the first release of the EMC 2.2 series, EMC 2.2.0. After about a year of development, many new features are available in this release. The documentation (particularly the HTML documentation) is greatly improved, and a partial translation of the documentation into the french language is available. Please join us on IRC in the usual place (irc.freenode.net / #emc) if you have any questions, or just to help us celebrate! I am the release manager for the emc 2.2.x release cycle. As a result, you'll need to add my gpg key to the list of keys that will authenticate packages on your system. Do so by issuing these commands in the terminal: gpg --keyserver pgpkeys.mit.edu --recv-key 96935D7D gpg -a --export 96935D7D | sudo apt-key add - after the second step you will be prompted for your password in order to run the administrative command apt-key add. If you don't perform this step, you will get a warning about unauthenticated software when installing bugfix releases. Because (minor) changes to configuration files are needed, your existing install will not automatically be updated to 2.2. If you want to run 2.2, you will have to change to the EMC 2.2 repository by following these instructions: Run System/Administration/Synaptic Package Manager Go to Settings/Repositories In the list of Channels are two lines for linuxcnc.org. For each of them: Select the line and click Edit on the Components line, change emc2 or emc2.1 to emc2.2 Click OK Close the Software Preferences window Click Reload as instructed Click Mark All Upgrades Click Apply A new EMC 2.2 Live CD will be released in the next week or so. CVS users can get this release by checking out the RELEASE_2_2_0 tag. Once you have done the upgrade, you will need to update any custom configurations by following these instructions: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl/emcinfo.pl?UPDATING As noted previously, support for Ubuntu 5.10 Breezy Badger has been dropped from this release. The currently supported version is Ubuntu 6.06 LTS Dapper Drake. If you are running a Breezy Badger system, you must reinstall with Dapper Drake, or follow these instructions to update online: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Breezy_Upgrading More detailed changelog: * G41.1, G42.1, G43.1 to take tool parameters from gcode instead of tool table * split libposemath and libemcini from libnml * new inifile item: [HAL]SHUTDOWN, a .hal file run at a clean shutdown of emc * new component: deadzone * new component: tristate_float * new component: random * new components: clarke2 clark3 clarkeinv * hexapod visualization * scara robot sample configuration with visualization * opengl machine visualization for several robots * new m5i20 firmwares * M66 - digital input control (wait read external HAL inputs) * userspace comp * hal-8255 driver for a PCI multiple-8255 card * tapered in/out on multipass threading canned cycle * debug and print output from the interpreter * named parameters in the interpreter * puma robot kinematics * sample configuration for a puma robot * reduce quantization of the encoder module's velocity output * MDI history manipulation and save in AXIS * home to index on STG1 * number of samples in halscope can be specified at runtime * add 'source' command to halcmd * add tcl interface to halcmd commands (tcl/hal.so) * add -U (force unload) to halrun script * new component: lut5 * image-to-gcode: roughing passes * rs274.author: automatic arc recognition (used by image-to-gcode) * Filters can now show progress bars in the AXIS window as they run * U,V,W linear axes with fully coordinated motion * probing in A,B,C,U,V,W axes is now allowed * AXIS: touch-off in any coordinate system * AXIS: allow starting an editor on the loaded gcode or tool table from the File menu * AXIS: A much better Velocity display * AXIS: Preferences set on the View menu are saved for the next EMC run * Rigid tapping G33.1 * Feed Per Revolution and Constant Surface Speed for lathes * Index-only homing for configurations where homing on a switch is inconvenient * G28/G30 now move only the specified axes to the home/reference point * Improved error messages for incorrect arcs * All combinations of inch/metric machines running inch/metric programs work correctly when using the tool table. The tool table is always in machine units. * Now any combination of XYZABCUVW axes can be defined, and trying to move an undefined axis causes a proper error message * Tool change position can have an ABC component. Previously rotary axes always moved to 0 for a tool change. * Spindle speed override * Optional stop * Analog jogging in halui (for joysticks etc.) * Fix several-second unresponsiveness when switching between two guis (even if one of them was halui) *
Re: [Emc-users] Released: EMC 2.2.0
On Mon, Nov 05, 2007 at 10:02:28AM -0700, Andrew Ayre wrote: Jeff, Which version of Ubuntu will the live CD use? For now, the Live CD will remain based on Ubuntu 6.06 LTS Dapper Drake. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC 2.2.0: execv(pumagui) failed
On Wed, Nov 07, 2007 at 07:37:35PM +0100, Karl-Heinz Glahe wrote: Hello, after upgrading from 2.1.7 to 2.2.0 (via synaptic packet manager, as recommended in the wiki) i tried the puma example which leads to this: This problem will be fixed in 2.2.1. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Released: EMC 2.2.1
I'm pleased to announce the first bugfix release of the EMC 2.2 series, EMC 2.2.1. This release fixes several important packaging problems, as well as a problem frequently encountered by users upgrading from 2.1.7. The new packages are now available in the Ubuntu package repository. If you already installed 2.2.0, this is available as an update. If you are still using 2.1.7 but want to upgrade, instructions are here: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UpdatingTo2.2 CVS users can get this release by checking out the RELEASE_2_2_1 tag. Tarballs will be available on sourceforge.net within the next 24 hours. Changes in this release: * fix packaging of stepconf.glade * german translation improvements * package additional new-in-2.2.x programs (pumagui, scaragui, hexagui tracking-test, teach-in) * fix problems using v2.1 var file -- it's silently upgraded with the new entries used by v2.2 instead of issing weird errors at startup * fix problem with probe_parport on certain machines * fix problem with non-integer INTRO_TIME Jeff Epler - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Preliminary Installation Instructions for Ubuntu 7.10
Hi. Thanks for documenting this process, it looks pretty similar to what I've done. I am curious why you chose this option: Loadable module support Module unloading (N) With this option, I would have expected that emc can only be run once per reboot, a pretty nasty limitation. Did your kernel not have the same ethernet driver problem you mentioned on cnczone in the gutsy experimental kernel? or did some other reason encourage you to build yours from scratch? I still haven't come up with any bright ideas about why you can't run halcmd as non-root -- this wasn't a problem on my own gutsy machine and the experimental emc2 package. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Improved probing
You configure a probe just like almost everything else in emc: add the right lines to a .hal file. In this case, you will be writing a line to connect a signal to the pin motion.probe-input. For example, if the probe input is on parport pin 26*, you could write net probe parport.0.pin-26-in motion.probe-input motion.probe-input must be TRUE for probe contact closed (touching), FALSE for probe contact open. So if your probe has a LOW voltage when touching and a HIGH voltage when not touching, you'll have to use the inverted signal instead: net probe parport.0.pin-26-in-invert motion.probe-input Each location found by a G38.2 probing move can be written to a file named in the special (PROBEOPEN) comment. Relevant online documentation: http://linuxcnc.org/docs/2.2/html/gcode_main.html#sub:G38.2:-Straight-Probe http://linuxcnc.org/docs/2.2/html/man/man9/motion.9.html#PINS Jeff * Yes, I know there's no pin 26 - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Image to G-code...Saving files?
If you upgrade to emc 2.2.1, there's a new menu option File Save gcode as... which does what you want. In 2.1.6, if you want to save gcode, run image-to-gcode at the commandline and redirect to a file: image-to-gcode mumble.png mumble.ngc Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC 2.2.1 and G3
If you have an arc that doesn't preview right, please post the code so that it can be fixed in a future release. If you can trim it down to just a few lines of g-code, just include it in a message. Otherwise, e-mail me privately and attach the whole file indicating where the problem is. Thanks, Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency issue
On Linux, modifying system files requires the use of administrator (root) privileges. I would do an activity like this in the terminal window with sudo: sudo cp rtai_smp.ko /usr/realtime-2.6.15-magma/modules/rtai_smi.ko (assuming you have already changed to the directory where you compiled or downloaded rtai_smp.ko) I have updated the page http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?FixingDapperSMIIssues to give this instruction, so that hopefully the next person won't have the same problem. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Is updating EMC@ impossible without internet?
apt supports offline operation with the --print-uris option. You can find various instructions on how to do this, though I have never tried it myself. e.g., http://olympus.het.brown.edu/cgi-bin/dwww?type=text/plainlocation=/usr/share/doc/apt-doc/offline.text.gz Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Confusing the EMC2 Stepconf Wizard...
Thanks for your report. I'll look into this and hopefully get it fixed for the next release, emc 2.2.2. Thanks to reports from other users, the following stepconf bugs will also be fixed in the next release: * fix stepconf 'charge pump' pin * fix stepconf 'external estop' pin * fix homing in stepconf-created configurations Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G Code Generator
I think Python is a fine language for this. In the emc sample files, there is a program holecircle.py uses python and tkinter to prompt the user for the required values and show a schematic preview of the result. Two thirds of holecircle.py are generic code for prompting the user that should be separated out into a separate module to be used by other similar programs, and one third is concerned with generating the preview or the gcode. Others -- Kenneth Lerman comes to mind -- have mentioned work on generic wizard programs for gcode. I think his design is to use gcode programs with special comments at the top which direct the wizard program to prompt for certain values. In this case, repetitions (looping and subroutines) are done in emc's o-words. I don't know if Kenneth has a preview version for download, all I recall seeing are some nice looking screen shots. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC 2.2.1 and G3
Can you also show me the tool table entries you used? Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G Code Generator
particularly long ago, tcl made some *very bad* decisions about floating point numbers -- after every operation, they were converted back to strings with a small number of decimal places. modern tcl has improved this situation considerably by having a sane default for the string representation of numbers, and by not always converting a number to a string whenever it's e.g., stored in a variable. In python you do not have this kind of difficulty (all floating-point data is calculated and stored as C doubles and you have to explicitly request conversions that lose precision, such as conversion to string) and in fact many people use python for serious numerics. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis display colors
In the next version, that text will be white on brown instead of black on brown. I think it is an improvement to legibility. If you are using an installed package, you can make the same change in your installed version by modifying the file /usr/bin/axis (e.g., with sudo gedit /usr/bin/axis) around line 3370: Change this line: t.tag_configure(executing, background=#804040) To this: t.tag_configure(executing, background=#804040, foreground=#ff) you can also experiment with different foreground and background colors by modifying this line in other ways, but be aware that when you install a bugfix or upgrade for emc this file will be overwritten. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A simple question on I J
I can see now that the documentation was unclear about this. I am revising it to add the sentence marked +: I and J are the offsets from the current location (in the X and Y directions, respectively) of the center of the circle. I and J are optional except that at least one of the two must be used. + If only one is specified, the value of the other is taken as 0. It is an error if: ... and similarly for the other planes. Does this clarify emc's behavior for you, or is it still not clear? Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] rs232 output
On Fri, Nov 30, 2007 at 01:27:11AM -0800, Klemen Dovrtel wrote: BTW, is there an option to control individual I/O pins via parallel port using G code. Use the gcodes M64 and M65 for this purpose. In stock version of emc, this is limited to 4 pins numbered 0 to 3. You can link them to whatever you like using emc2's hal. http://linuxcnc.org/docs/2.2/html/gcode_main.html#sec:M62-to-M65: Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Keling Stepper drives
I have no experience with this company or its products, but I was able to find a very short (one-page) datasheet on their website. It appears that the KL-4030 takes step and direction inputs through optoisolators. emc has no problem producing step and direction waveforms--probably this is the way the vast majority of emc users control their machines. However, I was unable to find information about the following, which may make it a matter of trial and error to properly configure your system to interface to these drives: * Waveform timings: Step length, step space, direction setup, direction hold. The emc step generator can be configured to meet any timing requirements of the stepper driver, but you have to know what they are! * Optoisolator current requirements. Without knowing the requirement, it is impossible to know whether a particular breakout board will correctly operate the optos. Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] rs232 output
On Fri, Nov 30, 2007 at 01:27:11AM -0800, Klemen Dovrtel wrote: Is it possible to send a simple command to rs232 within the G code using emc. I would like to control the pneumatic valves and some other simple stuff and i don't want to sped parallel port pins for simple things like this. Every serial device is different, so to do this you will have to write your own HAL component. If the control does not need to be real-time, then it is fairly simple to do this. One choice is to use Python and pyserial. You will have to install the pyserial package. If your Ubuntu system is on the internet, this can be done through the package manager by selecting the package called 'python-serial'. It is in the universe repository, which is not enabled by default but you can find instructions online for how to enable it. If you're not online, then download this file onto a usb drive then install it by double-clicking: http://us.archive.ubuntu.com/ubuntu/pool/universe/p/pyserial/python-serial_2.2-1_all.deb Here is an (untested!) example which should give you a general idea of the complexity of such a driver. This driver controls a hypothetical serial-attached device which turns something on when the character 1 is received, and turns it off when the character 0 is received: #!/usr/bin/python # --- # Import the necessary modules import hal import time import pyserial # Get the serial connection -- first port, 9600,8,N,1 import serial ser = serial.Serial(0) # Create the HAL component and its pin. You will use a .hal file to # connect whatever bit signal you want to the pin 'example.enable'. h = hal.component(example) h.newpin(enable, hal.HAL_BIT, hal.HAL_IN) h.ready() # The previous value of the 'enable' pin so that a byte is only sent on # the serial port when it is necessary. This setting, which is not a # number, means that the first time the value will always be considered # changed. last = None # (without try/except, the component will print what looks like an error # when emc is shut down, and the cleanup below won't happen) try: while 1: # As long as the component is running, periodically check # whether the value has changed; if it has, send a command to # set the new value new = h[enable] if new != old: if new: ser.write(1) else: ser.write(0) old = new time.sleep(.01) except KeyboardInterrupt: pass # Shut down the connected device at exit ser.write(0) # --- Put the above in a file named example, make it executable (chmod +x example), and put it in a directory on your $PATH. In your HAL file, hook it up something like this: loadusr -W example net coolant iocontrol.0.coolant-mist = example.enable Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] open loop galvanometer control
On Sat, Dec 01, 2007 at 06:13:17AM -0800, Klemen Dovrtel wrote: The galvanometer is current driven, so i was thinking of using a op-amp and R-2R resistor ladder for current source. So i need a 10 bit digital output for R-2R resistor ladder (instead of pwm used in etch-servo sample configuration). How can i archive this? Is this a good solution, or should i also use PWM (i didn't make the hardware driver yet). This can easily be accomplished with a custom component which takes one input and produces a bunch of bit outputs. Here's a lightly-tested component to do just that. After installing emc2-dev and build-essential using the package manager, you can install the new component with 'comp --install tobits.comp' or view the formatted documentation with 'comp --view-doc tobits.comp': // -- component tobits Convert a floating-point value into a binary value; pin in float in; pin out bit out-##[10]; param rw float scale=1; param rw float offset; function _; license GPL; description Convert a floating-point value into a 10-bit binary value. The binary value is given by the equation .RS floor((in-offset)/scale * 1023 + 0.5) .RE limited to the range 0..1023. ; ;; int i, v; if(scale == 0) scale = 1; v = (int)((in - offset) / scale * 1023 + 0.5); if(v0) v = 0; if(v1023) v = 1023; for(i=0; i10; i++) out(i) = (v (1i)) != 0; // -- My second problem is, that I think the position signal from emc should be modified a bit ( hight_on_the_wall=constant*tangens(emc_output signal ), because otherwise the drawing on the wall will be stretched at the sides. How can i achieve this? In emc, 'kinematics' can define arbitrary relationships between the cartesian axes (e.g., xyz) and the joints of the machine. The basics of writing a new kinematics type are described here: http://linuxcnc.org/docs/2.2/html/motion_kinematics.html An alternative is to use screw compensation, which you can do by just writing a table of entries that approximate the tangent or arctangent function you need. http://linuxcnc.org/docs/2.2/html/config_ini_config.html#sub:%5BAXIS%5D-Section (see COMP_FILE and COMP_FILE_TYPE) Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] rs232 output
In ECP mode only, parallel ports have FIFOs. In traditional modes (SPP, bidirectional, EPP) the fifo is disabled and has no effect on operation. Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Pivot mill
What an interesting looking machine. We have a demo of a similar type of machine, called SCARA. In emc 2.2.2, you can run the sample configuration scara/scara.ini and see a visualization of this machine on your desktop. Screenshot here: http://axis.unpy.net/01170693566 In emc, the process of converting from the XYZ coordinate system to the motor positions of a particular machine (and back again) is called kinematics. You can view the source code for the scara kinematics online, to get an idea of the complexity: http://cvs.linuxcnc.org/cvs/emc2/src/emc/kinematics/scarakins.c?rev=1.5 There is also documentation on writing a new kinematics type: http://linuxcnc.org/docs/2.2/html/motion_kinematics.html It is possible to build new kinematics types as a part of emc, or add them to an existing emc installation -- install emc2-dev and build-essential, then use comp --install yourkins.c to compile and install a new kinematics module. The kinematics module is typically specified at the very top of the first .hal file used for machine configuration. emc has some shortcomings for nontrivial machines. * How to specify and enforce joint limits for acceleration and velocity (at present, only cartesian limits are enforced) * How to specify the working volume of the machine however, there are a number of people interested in improving these items, so it's possible that we'll find solutions during the current development cycle. Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Results in G38.2 bug report
On Thu, Dec 06, 2007 at 10:20:21AM -0200, Daniel Scheeren wrote: In 2.2 releases each scan position create 9 lines like this: 0.00 0.00 0.004700 0.00 -1078038889533352951247954537139929273706981666439934620835065307540162947668163682328294324733651291932469341814794485760.00 -20013983783346165793258740692823450059607579332118972776994627514482229992151737444806544334141214424940798702636137325794191212550734922632046556714922672128.00 -7368554751641724535047026877998039650146848554115089884485955880828678465674529121150265203412873842084843230046730569603589198605536482732887601044914536710144.00 0.00 0.00 ... In the next emc 2.2 release, the numbers printed for axes that do not exist will be 0.00 instead of these values, which represent memory which was not initialized. http://cvs.linuxcnc.org/cvs/emc2/src/emc/motion/control.c.diff?r1=1.130.2.1;r2=1.130.2.2;f=h http://cvs.linuxcnc.org/cvs/emc2/src/emc/motion/motion.c.diff?r1=1.107.2.1;r2=1.107.2.2;f=h Jeff - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to configure pins in Parallel Port?
You can make an output pin HIGH all the time by using setp in your hal file: setp parport.0.pin-MM-out 1 ^^ replace MM with the pin number However, parport pin 13 is an input to the PC, not an output (see http://linuxcnc.org/docs/2.2/html/hal_drivers.html#fig:Parport-block-diag) EMC cannot set this pin to HIGH or LOW. Jeff - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepconf problems
John, When using stepconf, the BASE_PERIOD is chosen for you. If the required step rate is low, stepconf chooses a high BASE_PERIOD, capped at 10ns. In the case of Alan Condit's machine, the maximum required step rate is 3500Hz which is one step per 285us or so. Do you see any reason why this large BASE_PERIOD would be a problem? Jeff - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepconf problems
The step length requirement of 25000ns is much longer than for other stepper drivers I am familiar with. Doublestep is predicated on the idea that the step pulse is fairly short (e.g. less than say 4000ns). Doublestep uses a busy wait to create short output pulses; if BASE_PERIOD is very large compared to the step length then this is beneficial; if the required output pulse length is large then this just hurts machine performance. In hal_parport I built in a maximum length for pulses, which I arbitrarily made 1/4 of the thread time. In your case, this turns out to be a maximum of 24933ns when emc rounds the requested period 10ns to 99733ns. Just a bit under your datasheet timing requirement. So here's what I would try: Edit my-mill.ini to set BASE_PERIOD to 15 so that the delay can actually be 25000ns. If that still doesn't work, also edit my-mill.hal to increase the delay above 25000ns. Perhaps your break-out board creates an additional timing requirement that you haven't accounted for yet. There is no way to direct stepconf to produce a non-doublestep configuration. Jeff - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepconf problems
On Sat, Dec 08, 2007 at 11:12:28PM -0500, xtra209 wrote: My experience with stepconfig are mixed... The homing is screwed. I fixed that by commenting out the sequence = lines in the .ini and now it will home individual axes just fine. What home sequence is required for your machine? Or is there no safe home sequence? At present, stepconf hard-codes the homing sequence Z, X, Y, A. I intended that the configuration set the Z home position near the top of travel so that it X and Y can move freely in their homing sequence, above anything on the table. Also the thing would not load without a bunch of error messages and quitting. I fixed that by doing a hard reboot of the computer. This is on my spare computer which is not attached to a machine but no hard shutdown and reboot, no EMC-2... With the new configs that is... Please find a way to copy the error messages over to a networked computer, because without them I am in the dark. I haven't run into this problem myself. I run stepconf-generated configuration files many times on the same machine without the need to reboot after each run. Jeff - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Remote GUI
I don't know of anyone running AXIS remotely; I've never done it. AXIS assumes that it can create HAL pins and access (read) the var file from the filesystem. This may be causing problems. Look on the terminal for any errors AXIS prints. Jeff - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC configuration issues
On Tue, Dec 25, 2007 at 08:30:09PM +0100, Jesús Bas wrote: - No matter what numbers you put in stepconf for steplen, step space, dirhold and dirsetup, the generated .hal file reflect wrong data. I believe that the values written by stepconf are exactly what I intended. Let me explain how stepconf arrives at each figure in question. In my case, the following requested numbers were (I use Gecko drives): - steplen 4000 - stepspace 500 - dirhold 2 - dirsetup 1000 (not shown: you must have entered a latency test result of 3) and the corresponding lines in the generated .hal file is allways (no matter what numbers you input): - setp stepgen.0.steplen 1 - setp stepgen.0.stepspace 0 - setp stepgen.0.dirhold 5 - setp stepgen.0.dirsetup 31000 (not shown: setp parport.0.reset-time 4000) (not shown: inifile BASE_PERIOD of at least 39500) BASE_PERIOD 39500 This is at least as big as machine latency + reset_time + 5000 but may be a larger value if your step rate is low. reset-time 4000 this is the step length you entered in stepconf. After the step 1 bit is written to the parport, it is reset back to 0 after at least 4000ns has passed (but maybe longer) steplen 1 this means the shortest step length possible. the actual minimum length of the pulse on the parport is 4000ns, defined by parport.0.reset-time stepspace 0 this means that steps are allowed in subsequent base_periods (doublestep). The actual minimum length of the space on the parport is defined by BASE_PERIOD - machine latency - reset-time - overhead where overhead is any time above and beyond the minimum reset-time that the step pulse is high, plus any other variations (such as cache misses) that make the time between one reset and the subsequent write (in the next base-thread invocation) vary. It is assumed that this is less than 5000ns in all cases, but has only been measured on a few machines. dirhold 5 dirsetup 31000 these are the dirhold and dirsetup values you entered, plus the latency test result you entered. Perhaps someone will point out an error in these calculations, but for now I simply cannot see it. Other possibilities are: * The signal path from your PC to the gecko has other characteristics (e.g., weak drive stringth in the parport, additional external signal conditioning) that lead to increased rise/fall time for signals and require higher step length and space in emc * another error in your configuration, such as an incorrect invert on a step output pin * there is a (yet unknown) bug in the hal_parport driver that causes the step output bit to be reset too early (this is based on CPU speed, so if linux misdetects your CPU that could also be the cause) * the arbitrary max overhead value of 5000ns is not appropriate for all machines If the *only* change you made was to modify the inifile stepspace to a nonzero value, then the only effect is to increase the step space by approximately one base-period--e.g., from 500ns minimum to 4ns minimum. The step pulse will still be short (as short as 4000ns) unless you made other changes (e.g., remove the setp parport.0.pin-##-reset 1 lines, or the addf parport.0.reset base-thread line) Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Arduino
On Fri, Dec 28, 2007 at 11:39:38AM -0800, Kirk Wallace wrote: This looks interesting: http://axis.unpythonic.net/01198594294 This looks like an inexpensive way to get fast PWM and encoder rates except it doesn't work in realtime yet? I have been debating whether to announce this to a bigger audience. I think this is more a proof-of-concept than anything truly useful. First, beacuse the particular board I used is on a USB interface, it simply can't be used for realtime purposes. Switching to a traditional PC serial port (there are, or at least were, similar board designs with RS232 or TTL serial instead of USB), you run into bandwidth limits -- you can't quite transmit 12 bytes every 1ms at 115200bps, and with the protocol I used, it takes 12 bytes to read or write all the pins. You also have to budget the time that the micro takes to actually perform its actions -- e.g., it takes at least 100uS to do one ADC conversion, and because the AVR's UART has only one byte of output buffering it can't efficiently be interleaved with transmitting the previous sample over the serial connection. The driver from my website has ADC in and PWM out (the avr microcontroller has both built into the hardware) but no quadrature decoder. Quadrature might be possible, but it would be fairly low speed because avrs do not have dedicated quadrature decoders. At best you'd get something good enough for use with an MPG, not for a spindle or axis motor (5kHz sample rate, maybe?). Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Additional I/O Modbus card.
the classicladder in emc2 does not have any modbus support. emc2 doesn't ship with any modbus drivers. jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Home and Limit Switch Setup in Stepconf
stepconf only gives a tiny, tiny subset of all the configurations that can be created through emc2's HAL. It sounds like your home switch configuration may be one that is not possible. You may be able to use custom.hal and/or inifile tweaks after stepconf has run to get the configuration you want, or you may be better off starting with a traditional stepper_inch/stepper_mm configuration and editing it to suit. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Home and Limit Switch Setup in Stepconf
Dean, If I got a report about these problems in 2.2.2, I lost it. Can you let me know what problems you encountered? I do know of some homing problems in 2.2.1, but the ones I know about were fixed in 2.2.2. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] announcing a HAL driver for Mesa 7i43 EPP Anything I/O card
This looks like good stuff. Thanks for your efforts to improve EMC2! Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Python Component Loading
In my interface between the Arduino board and HAL, the first line of the sample hal file is loadusr -W arduino /dev/ttyUSB0 3 this runs the python script (which is actually at /home/jepler/bin/arduino on my particular system) as a userspace component. Python programs aren't ever realtime components. http://axis.unpy.net/01198594294 Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Changing parameters within repeat loop
Here is my solution. Change the definition of #1 and #3 to suit the hexagonal hole pattern you need. Screenshot: http://emergent.unpy.net/index.cgi-files/sandbox/hexagonal-pattern.png Program: ( Drill a system of holes in a hexagonal layout ) #1=8 (nuber of holes on the side of the large hexagon) #3=.25 (row-spacing of repeats) (subroutine O100: drill a row of holes along X) (drill a row of holes starting at x0 and shifting over by dx until repeats) (holes have been done. drill down to z, retract to r) O100 sub ([z] [x0] [dx] [repeats] [r]) #10=0 O110 while [#10 LT #4] G82 X#2 Z#1 R#5 P.5 #2=[#2+#3] #10=[#10+1] O110 endwhile O100 endsub (subroutine O200: drill a row of holes along X, alternating direction) #100=0 (used in O200 to track even/odd row) O200 sub ([z] [x] [dx] [repeats] [r]) O201 if [#100 EQ 0] #2=[#2+#3*[#4-1]] #3=[-1*#3] O201 endif O100 call [#1] [#2] [#3] [#4] #100=[1-#100] O200 endsub (Main program starts here) #2=[#1*2-1] (ending number of repeats) F8 G0 X0 Y0 Z.1 (step 1: increasing from #1 to #2) #11=0 #10=#1 O1 while [#10 LE #2] G0 Y[#11] O200 call [-1] [-.5*#3*#10] [#3] [#10] #10=[#10+1] #11=[#11+#3] O1 endwhile (step 2: decreasing back to #1) #10=[#2-1] O3 while [#10 GE #1] G0 Y[#11] O200 call [-1] [-.5*#3*#10] [#3] [#10] #11=[#11+#3] #10=[#10-1] O3 endwhile M2 Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] home+limits configuration
You can accomplish what you need in HAL or ClassicLadder. For each axis, there is a pin axis.N.homing which is TRUE when the joint is homing. You can use these together with the single input signal to get the limit signal. In C-like notation, this would be on_limit = switch_input !(axis_0_homing || axis_1_homing || axis_2_homing) This configuration is undesirable, because if some bug causes motion on one axis while another is homing, it won't be detectable within emc. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
