Re: [Emc-users] Plasma Torch Height Control
Jarl, Thanks for the info. Am I correct in assuming that from the hardware end using your plasma-thc that I only need to supply a raise or lower to EMC to make it work? My current thoughts are to use a voltage divider from the plasma voltage out pins to reduce the voltage to a 0 to 10vdc range and use that as an analog input to a plc. Based on the voltage setting in the plc supply a raise contact or a lower contact. Or continue to pulse up or down as a hand wheel would till the desired voltage is obtained. If HAL can ignore this during cornering it should work??? Thanks John On 4 Oct 2007 at 7:28, [EMAIL PROTECTED] wrote: To elaborate on what Alex posted: dallur-thc is an old version of a gantry based plasma config which uses classicladder and has basic functionality. plasma-thc is a newer version which only uses HAL and has things like corner height lock, realtime adjustable cutting height and more. plasma-thc-sim is a simulator config which should enable you to run the system without the hardware. The logic diagram for plasma-thc is maintained in an open office diagram which can be found in the plasma-thc config directory. http://cvs.linuxcnc.org/cgi-bin/cvsweb.cgi/~checkout~/emc2/configs/pla sma-thc/ Regards Jarl (dallur and rugludallur) - 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] Oh man, my home is broke...
Patrick Ferrick wrote: Hi all, Well, I've gone and added a rotary axis to my xyz-minimill, and I've managed to break my nice homing sequence. As it turns out, I guess I don't understand homing as well as I thought I did, because I can't figure out the following situation: Yes, it has re-established the coordinate system that was set on the machine the last time you used it. If you had a part feature that was set to 3.00 inches from the home position last time, then that coordinate alignment is set up again, until you change it. You cahnge it with the touch off button, and set some machine position to whatever alignment you now need for the next part. It works this way so you can do production work from one day to the next without having to use an edge finder or some other procedure to locate your coordinate system every time you turn EMC on. Jon - 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] Oh man, my home is broke...
Which coordinate system do you have the Axis display set to, machine or the work offsets? Sounds like it is displaying relative to the work offset (G54) and you have a +3 inch offset of the Y axis. __ Andre' B. Clear Lake, Wi. - 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] Max Speed
I have a CNC4PC C1G parallel port interface card driving a Gecko 203v. I have a 28vdc power supply and I am running the stepper without any load just to get my configs setup... The highest velocity I can get is about 70 as reported on the Axis screen no matter what I set F at. If I do a MDI G1 F100 X10 orG1 F400 X10 I get the same velocity reported of about 70. If i do a G1 F50 X10 I get the expected velocity of about 50 If I do a G1 F25 X10 I get the expected velocity of about 25 I've ran the latencey test on the machine and used the spreadsheet to figure out what to set the base period at. My config is: BASE_PERIOD =15000 DEFAULT_VELOCITY = 0.0167 MAX_VELOCITY = 7.0 DEFAULT_ACCELERATION = 15.0 MAX_ACCELERATION = 20.0 My Axis is: MAX_ACCELERATION = 2.0 STEPGEN_MAXVEL = 7 STEPGEN_MAXACCEL = 2.1 BACKLASH = 0.000 INPUT_SCALE = 3000 OUTPUT_SCALE = 1.000 MIN_LIMIT =-100.0 MAX_LIMIT =100.0 FERROR =0.050 MIN_FERROR = 0.010 When I run tests the drive turns the correct number of turns per inch (1.5) so I'm reasoning that I have the scale correct... Any tips on where to start looking would be a big help... Thanks John - 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] Max Speed
in your axis section - it seems your missing MAX_VELOCITY = 6.7 (you want some stepgen headroom.) sam - Original Message - From: John Thornton [EMAIL PROTECTED] To: emc-users@lists.sourceforge.net Sent: Friday, October 05, 2007 11:47 AM Subject: [Emc-users] Max Speed I have a CNC4PC C1G parallel port interface card driving a Gecko 203v. I have a 28vdc power supply and I am running the stepper without any load just to get my configs setup... The highest velocity I can get is about 70 as reported on the Axis screen no matter what I set F at. If I do a MDI G1 F100 X10 or G1 F400 X10 I get the same velocity reported of about 70. If i do a G1 F50 X10 I get the expected velocity of about 50 If I do a G1 F25 X10 I get the expected velocity of about 25 I've ran the latencey test on the machine and used the spreadsheet to figure out what to set the base period at. My config is: BASE_PERIOD =15000 DEFAULT_VELOCITY = 0.0167 MAX_VELOCITY = 7.0 DEFAULT_ACCELERATION = 15.0 MAX_ACCELERATION = 20.0 My Axis is: MAX_ACCELERATION = 2.0 STEPGEN_MAXVEL = 7 STEPGEN_MAXACCEL = 2.1 BACKLASH = 0.000 INPUT_SCALE = 3000 OUTPUT_SCALE = 1.000 MIN_LIMIT =-100.0 MAX_LIMIT =100.0 FERROR =0.050 MIN_FERROR = 0.010 When I run tests the drive turns the correct number of turns per inch (1.5) so I'm reasoning that I have the scale correct... Any tips on where to start looking would be a big help... Thanks John - 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 - 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] stepper motors?
I have 1980 vintage wells index knee mill, I have retro to emc2 from bandit using gecko's microstep 10x using original power supply 45vdc and 2 original motors and one that is newer but came with the machine. 2 sigma instruments and one rapidsyn dana, all are nema 42 The sigma's have no spec's and I can't uncover the spec's, and the rapidsyn rate the amps at 7.5. The gecko's are running wide open 7 amps, unipoler motors wired half winding. the sigma motor's seem tired and don't have much detent at all and rapidsyn has plenty. When I run a program like the spiral.nrg the sigma motor will stall in the change of direction part of the interpolation. It doesn't seem to stall when jogging at slow speed or rapid motion. max_volosity .65 max_acceleration 3.0 could these motor's need more current or are they used up There is some talk about repair, anyone with any experience with this ave. Wells quoted me $495. for used motors, I think I'll look elsewhere. Wondering what the people on the list think? Thanks again Al - 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] Mach development (was Re: Desktop CNC Website Information)
Moses McKnight wrote: Jon Elson wrote: Peter Homann wrote: Hi Jon, You may want to ask Art to have another look. These days there are plug-ins that are written that talk to various type of hardware. You would probably have to write the plug-in yourself with Arts help. I talked to him at the CNC Workshop, and he sounded pretty positive about it. I emailed him later to see if he had any general recommendations to start, and never got anything back. Now that he's retiring, that may be the end of it. I STILL have not even been able to find out what software I need to buy to become a developer. I've been trying to solve thaty puzzle for a couple years, now. Jon If you're talking about developing plugins for mach all you need is Visual Studio C++ .NET 2003 and the Mach SDK. I work with Tom at CandCNC and have written a couple plugins for our hardware. OK, thanks for the clarification! I got an earlier version of Visual Studio, before the .net thing. I will look into it. Thanks again, Jon - 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 motors?
Stephen Wille Padnos wrote: Alfred Smart wrote: The gecko's are running wide open 7 amps, unipoler motors wired half winding. Are you sure those are unipolar motors? The geckos are bipolar drives, and I don't see how they could work with unipolar motors. Five wire unipolar motors can't be used with Gecko drives, but six wire ones can (two center tapped windings). You can run full winding (equivalent to series connection on an 8-wire motor) or half winding. You can't do the equivalent of 8-wire parallel though. Regards, John Kasunich - 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
