Re: [Emc-users] Tormach mill, unique design or Chinese inside?
On Thu, 30 Jan 2014 01:10:09 -0600, you wrote: It may be true that Tormach designed the casting, although I don't see much need to as there are many existing slug designs. They probably did design the sheet metal. But the spindle, belts, pulleys, electronics, motors, ball screws, couplers, linear rails, and bearings - you know all of the components that actually function - are almost certainly all off-the-shelf Chinese components. If they were using brands like IKO or THK - surely they'd brag about that (using Japanese parts instead - LOL). And THK have 5 manufacturing factories in China and three in Korea ;) Again, I don't have a problem with Chinese components myself. But the question I have is... if you find a quality Chinese integrator and specify the way the machines must be built, tested, and to what tolerances they must meet - does that then make it an American product? I guess if you think the iPhone is an American product because Apple designed the skin around which the Chinese components are housed, then yes. But that would make Mach3 on Windows the equivalent of iTunes on iOS, which may not be that much of a stretch - haha. You could ask that question of most products. I don't have a problem with Chinese goods either. They are made to a price and the quality reflects the price you specify. Steve Blackmore -- -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On Wed, Jan 29, 2014 at 5:35 PM, Jeshua Lacock jes...@3dtopo.com wrote: Interesting - yeah works out to around the same price and would be a infinity better set up. Well, checking on Automation Tech, the same motor is listed at $78, I think. So, I don't know if Keling will honor the $52 price still on the Keling web site. The keling site may now be a zombie web site with nobody servicing the orders. I notice Lin Engineering seems to have the exact same motors, but they don't show prices online. Could I use the PWM Servo Amplifier to drive all 4 axes? One brushless PWM servo amp will drive each motor, so for 4 axes, you'd need 4 servo amps. Automation Technology is Keling. The Automation Tech web site is the current one. Dunno why John keeps the old site up and running other than as a visual redirect. He ought to scrap the entire old site and leave a dummy page with a link to the new site. Mark -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] python interface to C
I have created python script which I have linuxcnc automatically launch via hal loadusr. this python script controls the majority of everything linuxcnc does to make it very specific to what I need for my given scenario using the functionality described here: http://linuxcnc.org/docs/html/common/python-interface.html I would really like to use c/c++ instead of python to communicate with linuxcnc. can someone point me in the right direction of if there is an api/library for C/C++ containing the same basic functionality as described in the python interface documentation? the python documentation hints to the fact that such a thing exists (possibly with even more functionality) but I can't seem to find any other documentation to support it. thanks. -- Josiah Morgan, P.E. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] python interface to C
Josiah, Am 30.01.2014 um 15:41 schrieb Josiah Morgan josiahmor...@gmail.com: I have created python script which I have linuxcnc automatically launch via hal loadusr. this python script controls the majority of everything linuxcnc does to make it very specific to what I need for my given scenario using the functionality described here: http://linuxcnc.org/docs/html/common/python-interface.html I would really like to use c/c++ instead of python to communicate with linuxcnc. can someone point me in the right direction of if there is an api/library for C/C++ containing the same basic functionality as described in the python interface documentation? the python documentation hints to the fact that such a thing exists (possibly with even more functionality) but I can't seem to find any other documentation to support it. I can only advise to not go down this path - IMO the underlying NML code is deprecated as an API, unsuitable for new code at this point the Python linuxcnc module abstracts away many of the gory details of NML Note that work is underway to remove NML from LinuxCNC completely, meaning any C-ish interface will need a substantial rewrite or die out is very likely the Python linuxcnc interface will see little or no change in this process my recommendation is to warm up to Python instead ;) - Michael thanks. -- Josiah Morgan, P.E. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tormach mill, unique design or Chinese inside?
On 01/29/2014 11:10 PM, Len Shelton wrote: ... snip It may be true that Tormach designed the casting, although I don't see much need to as there are many existing slug designs. Then it would be a Chinese machine with Tormach's name on it. It's a Tormach machine which happens to be made in China. They probably did design the sheet metal. But the spindle, belts, pulleys, electronics, motors, ball screws, couplers, linear rails, and bearings - you know all of the components that actually function - are almost certainly all off-the-shelf Chinese components. The design and specs come first, if there is an off the shelf part that meets the specs, they use it, if not, they figure out how to get it made. If they were using brands like IKO or THK - surely they'd brag about that (using Japanese parts instead - LOL). There are actually some really nice Chinese controllers being produced for cheap, so why they are still using Mach3 is beyond me. Mach3 is used mostly because that's what their customers expect and want. And here is a fun fact: If the Chinese factories want even better quality, they actually import components from Taiwan, which has about a 40 year lead over Chinese manufacturing technology. Again, I don't have a problem with Chinese components myself. But the question I have is... if you find a quality Chinese integrator and specify the way the machines must be built, tested, and to what tolerances they must meet - does that then make it an American product? I guess if you think the iPhone is an American product because Apple designed the skin around which the Chinese components are housed, then yes. But that would make Mach3 on Windows the equivalent of iTunes on iOS, which may not be that much of a stretch - haha. Len An Apple product is an Apple product because you get a customer experience that is unique to Apple. It's like the difference between Snap-On, Craftsman, and Who-Knows tools, just from the name there is a different expectation of performance and value, based on reputation. I have a PCNC770 in my shop. I can't speak officially for Tormach but indications are that Tormach creates all of design and specifications and outsources the manufacture. Their engineering documents on the website and the offering of training classes shows that the products are theirs from beginning to end. (I am biased) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] python interface to C
On 1/30/14 08:18 , Michael Haberler wrote: Josiah, Am 30.01.2014 um 15:41 schrieb Josiah Morgan josiahmor...@gmail.com: I have created python script which I have linuxcnc automatically launch via hal loadusr. this python script controls the majority of everything linuxcnc does to make it very specific to what I need for my given scenario using the functionality described here: http://linuxcnc.org/docs/html/common/python-interface.html I would really like to use c/c++ instead of python to communicate with linuxcnc. can someone point me in the right direction of if there is an api/library for C/C++ containing the same basic functionality as described in the python interface documentation? the python documentation hints to the fact that such a thing exists (possibly with even more functionality) but I can't seem to find any other documentation to support it. I can only advise to not go down this path - IMO the underlying NML code is deprecated as an API, unsuitable for new code at this point the Python linuxcnc module abstracts away many of the gory details of NML Note that work is underway to remove NML from LinuxCNC completely, meaning any C-ish interface will need a substantial rewrite or die out It'd be great to have a C API to LinuxCNC, hiding the NML ugliness/replacement, comparable to the Python API. -- Sebastian Kuzminsky -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Gcode to a keystroke
I would like to make a gcode Say G133 or M64 to perform the key stroke ctl+space to clear the MSG and DBUG messages. I'm unable to find a pin to do this. Perhaps it has all ready been done? Any suggestions would be appreciated. Keep up the good work. Jim -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On 01/30/2014 04:23 AM, Mark Wendt wrote: Automation Technology is Keling. The Automation Tech web site is the current one. Dunno why John keeps the old site up and running other than as a visual redirect. He ought to scrap the entire old site and leave a dummy page with a link to the new site. Yes, it is a real problem that he has two web stores with SIGNIFICANTLY different prices on the same items. I wonder if the Keling site is a zombie that no one has access to anymore? Jon -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Gcode to a keystroke
On 1/30/14 08:50 , Jim Wilkin wrote: I would like to make a gcode Say G133 or M64 to perform the key stroke ctl+space to clear the MSG and DBUG messages. I'm unable to find a pin to do this. Perhaps it has all ready been done? Any suggestions would be appreciated. I think there's currently no easy way to do this, but it looks like it'd be pretty straight forward to implement. But i must ask, what is the use case for this? What problem are you trying to solve by clearing gui messages from gcode? If you want to implement this, i'd suggest: * add a new command-line argument to axis-remote to send a new message to axis, * add the matching handler for that message in axis' TclCommands.remote() * the handler would call Notifications.clear(), just like Ctrl-Space does Then you can add a custom M-code script to call axis-remote --clear-messages. -- Sebastian Kuzminsky -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Gcode to a keystroke
On 30 January 2014 15:50, Jim Wilkin james.a.wil...@gmail.com wrote: I would like to make a gcode Say G133 or M64 to perform the key stroke ctl+space to clear the MSG and DBUG messages. I'm unable to find a pin to do this. I think Axis has this pin http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/emc/usr_intf/axis/scripts/axis.py;h=ca7945fdbf12c88309cc508d54c818a79c48eec5;hb=HEAD Seems to contain a notifications-clear HAL pin. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] PNCConf truncating metric screw pitch
We're using Mesa 5i25+7i76s in a couple Emco stepper based machines w/ 2.5mm pitch leadscrews. PNCConf seems to be truncating that 2.5 back to 2.0 every time we revisit the step calculator page (the pop-up where you check off/enter the pulley info, step multiplier, etc.) that calculates the main steps/unit box. It seems to get it right when you enter it as 2.5, but if you go back though sometime later (say to change the microstep multiplier), it shows 2.0 and you have to catch that and fix it every time. FWIW, I'm running the latest release (2.5.3) SMD -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Gcode to a keystroke
Thank you Sebastion, This is for my new to me EMCO compact 5 cnc lathe retrofit. I use a lot of o word loops in my programs. When debugging if I get more than four messages ,they start to scroll over my tool changer information. So I thought if I could clear the messages just before I sent a new one they wouldn't scroll ,making a cleaner display. I will study what you suggest and see what I can come up with. On 01/30/2014 01:51 PM, Sebastian Kuzminsky wrote: On 1/30/14 08:50 , Jim Wilkin wrote: I would like to make a gcode Say G133 or M64 to perform the key stroke ctl+space to clear the MSG and DBUG messages. I'm unable to find a pin to do this. Perhaps it has all ready been done? Any suggestions would be appreciated. I think there's currently no easy way to do this, but it looks like it'd be pretty straight forward to implement. But i must ask, what is the use case for this? What problem are you trying to solve by clearing gui messages from gcode? If you want to implement this, i'd suggest: * add a new command-line argument to axis-remote to send a new message to axis, * add the matching handler for that message in axis' TclCommands.remote() * the handler would call Notifications.clear(), just like Ctrl-Space does Then you can add a custom M-code script to call axis-remote --clear-messages. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Gcode to a keystroke
On Thu, Jan 30, 2014 at 2:24 PM, Jim Wilkin james.a.wil...@gmail.comwrote: Thank you Sebastion, This is for my new to me EMCO compact 5 cnc lathe retrofit. Hey! Im currently doing three of these! I have one machine up and running w/ Mesa boards, new steppers+drivers, D525MW, and an ELO touchscreen. Only thing I reused is the power supply (though i think I may reuse the spindle drive on the next one.) I've figured out the spindle encoder feedback so should have that fixed and up and running this weekend (note: there are NO current limiting resistors for the diodes in the potted sensor block;)) Stephen -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
2014-01-30 Jeshua Lacock jes...@3dtopo.com: Or perhaps this driver: http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115 Does anyone have experience with these drives? I have few servo motors whose current requirements are too large for 7i39 drive, so this one looks really tempting. But I feel reserved about the motor position feedback. So what functionality does it have? Only commutating current in phases? I feel confident that no feedback loop is closed in the drives. So are these drives any good? Viesturs -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Gcode to a keystroke
Perhaps it has all ready been done? if you use the axis gui, it has pins: bit IN FALSE axisui.notifications-clear bit IN FALSE axisui.notifications-clear-error bit IN FALSE axisui.notifications-clear-info -- Dewey Garrett -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On 1/30/2014 2:44 PM, Viesturs Lācis wrote: 2014-01-30 Jeshua Lacock jes...@3dtopo.com: Or perhaps this driver: http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115 Does anyone have experience with these drives? I have few servo motors whose current requirements are too large for 7i39 drive, so this one looks really tempting. But I feel reserved about the motor position feedback. So what functionality does it have? Only commutating current in phases? I feel confident that no feedback loop is closed in the drives. So are these drives any good? Viesturs I think that drive is targeted for the speed control market, not the servo positioning market. The hint is: pot control with external 5 volt control available Plus no mention of servo control, and it is only a 2 quadrant drive so it cannot regenerate power back into the power supply. A 4 quadrant drive is required for that. http://en.wikipedia.org/wiki/File:Four_quadrant_motion_control_of_a_motor.jpg Dave -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On 30 January 2014 22:23, Dave Cole linuxcncro...@gmail.com wrote: The hint is: pot control with external 5 volt control available However, it might still work. LinuxCNC can output speed-dir if needed. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
Except that if you put it on an axis and you wanted to stop, the drive could not apply braking torque.. I can't imagine that working on a servo axis. Even steppers can apply braking torque. Dave On 1/30/2014 5:44 PM, andy pugh wrote: On 30 January 2014 22:23, Dave Cole linuxcncro...@gmail.com wrote: The hint is: pot control with external 5 volt control available However, it might still work. LinuxCNC can output speed-dir if needed. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On 30 January 2014 23:58, Dave Cole linuxcncro...@gmail.com wrote: Except that if you put it on an axis and you wanted to stop, the drive could not apply braking torque.. Surely there is no torque only when there is no position error. With the slightest hint of overshoot the motor will be applied in reverse? (unless when they talk of 2-quadrant control they really do mean that the motor will only provide torque in the current direction of motion, which would, on the face of it, be hard to enforce with only hall-sensor commutation) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On Thursday 30 January 2014 20:28:27 Dave Cole did opine: Except that if you put it on an axis and you wanted to stop, the drive could not apply braking torque.. I can't imagine that working on a servo axis. Even steppers can apply braking torque. Dave I do, by making hal apply a staged dynamic braking load, so even with all that weight, I can do the reversal at the left end of a G33.1 in a hair over 2 seconds. From 350 rpm. On 1/30/2014 5:44 PM, andy pugh wrote: On 30 January 2014 22:23, Dave Cole linuxcncro...@gmail.com wrote: The hint is: pot control with external 5 volt control available However, it might still work. LinuxCNC can output speed-dir if needed. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.cl ktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. Home on the Range was originally written in beef-flat. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Conversion Suggesions?
On 1/30/2014 7:08 PM, andy pugh wrote: On 30 January 2014 23:58, Dave Cole linuxcncro...@gmail.com wrote: Except that if you put it on an axis and you wanted to stop, the drive could not apply braking torque.. Surely there is no torque only when there is no position error. With the slightest hint of overshoot the motor will be applied in reverse? (unless when they talk of 2-quadrant control they really do mean that the motor will only provide torque in the current direction of motion, which would, on the face of it, be hard to enforce with only hall-sensor commutation) Here is a link that Keling has for a similar motor. http://www.automationtechnologiesinc.com/products-page/dc-brushless-motor/kl34bls-series-12 At the bottom of the page is a another link showing how it can be controlled with a LPT breakoutboard and Mach3. http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2014/01/2-Quadrant-BLDC-speed-driver-ver.-48ZWSK50-B-804-1.pdf They have that wired similar to what someone would for a spindle drive control via Mach3. No positioning control, just speed. What else is odd about this diagram is that the C10 board does not have an analog output on it.. So they must be configuring Mach3 to send a PWM signal to the SV pin on the drive?? But apparently it works with that driver. Dave -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
