Re: [Emc-users] next big thing
On 26 February 2014 06:11, a k pccncmach...@gmail.com wrote: my question is can i use on one system 3 ac servomotors and 2 stepper motors? Yes, there is absolutely no reason why not. (Your extra axes would conventionally be U and V rather than A and B) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Startup error when switched to 10.04
On 26 February 2014 02:29, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: libnml/buffer/physmem.cc 143: PHYSMEM_HANDLE: Can't write 11592 bytes at offset 60 from buffer of size 10208. See http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UPDATING#Changes_between_2_3_x_and_2_4_x section 1.1 It looks like you need to remove the NML file reference from the INI. (though that was a 2.3 to 2.4 change) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Startup error when switched to 10.04
Hi Andy, Yes. That was causing the error. Didn't know too much about those changes. Also, you're right, the old version installed on this computer was 2.3.X. Thanks for helping me out! Leonardo. 2014-02-26 7:14 GMT-03:00 andy pugh bodge...@gmail.com: On 26 February 2014 02:29, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: libnml/buffer/physmem.cc 143: PHYSMEM_HANDLE: Can't write 11592 bytes at offset 60 from buffer of size 10208. See http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UPDATING#Changes_between_2_3_x_and_2_4_x section 1.1 It looks like you need to remove the NML file reference from the INI. (though that was a 2.3 to 2.4 change) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- *Leonardo Marsaglia*. -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] beaglebone fpga with linuxcnc
On 2/25/2014 11:26 PM, Gregg Eshelman wrote: On 2/25/2014 7:21 AM, Charles Steinkuehler wrote: On 2/25/2014 8:16 AM, Dave Cole wrote: I'm sure it would depend upon how Xylotex or others are implementing their cape.. BTW, I'm curious; Does anyone know who came up with the term cape ?? That seems totally non-obvious to me, compared to add-on board, daughter board, etc. Did that arrive out of a language translation? Or was that a TI invention. I used to work for TI long ago and some of those guys lived a little over the edge. ;-) It's a twist on shield from the Arduino world. The Beagle folks wanted a new term to avoid confusion with existing sheilds, and you apparently can't just call it a daughter-card or add-on-module because the target audience is creative types who need to be shielded (pun intended) from such harsh real-world concepts. :) Remember Underdog? The super flying beagle who wore a cape? Oh Yes! But I was a kid and didn't really consider what breed he was at the time. Was he really a Beagle? Underdog was one of my favorite cartoon characters back when I used to look forward to Saturday morning cartoons! Dave -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fwd: Trying to merge the hal files etc For Crackling Motors
This is my first attempt at merging the hal files and ini files following discussions over the crackling motors. Using 7i76e.zip from Peter Wallace I have attatched the Hal and ini file. All i get is no movement and a joint following error. Could anyone have a look and see if there is anything obvious?. Not sure if the files will be stripped from the post? Regards Mark # These buffer ALL siginal used on the DB25 port # The board also has a pair of a set of four 0805 size jumper resistors # these can be used to output either the standard Spindle/Mist/flood and # input ALIM from the DB25 pins # or allow BBB SPI singals to be routed to the DB25 connector instead. # The ALIM RC buffer Capacitor would need to change if this # option was used. The LIM Switch input signals are pulled to 3V3 through # 10K resistors # then go through a 1K resistor and bypassed with a .22uF cap. This is # the cap that should be removed # if the SPI port (untested option) is used. The 4 SPI signals are also # directly routed # to six through-holes which include 3V3 and GND. This singals are # otherwise Unbuffered and # go directly to the BBB # At powerup the LVC541 enabl;e signals are pulled high, disabling the # drivers until # the BBB and LinuxCNC pull the enable signal low. # # Launch the setup script to make sure hardware setup looks good loadusr -w /home/linuxcnc/linuxcnc/configs/Xylotex/setup.sh # ### # Core EMC/HAL Loads # ### # kinematics loadrt trivkins # motion controller, get name and thread periods from ini file loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[TRAJ]AXES # load low-level drivers loadrt hal_bb_gpio output_pins=107,113,119,126,214 input_pins=109,110,114,118,241 loadrt [PRUCONF](DRIVER) [PRUCONF](CONFIG) #(JP) Not suing PID loop so comment out loadrt pid num_chan=3 loadrt limit1 count=2 # # THREADS # addf [PRUCONF](DRIVER).capture-position servo-thread addf bb_gpio.read servo-thread addf motion-command-handler servo-thread addf motion-controllerservo-thread #(JP) Not doing PID for temperature sensor for PWM output addf pid.0.do-pid-calcs servo-thread addf pid.1.do-pid-calcs servo-thread addf pid.2.do-pid-calcs servo-thread addf limit1.0 servo-thread addf limit1.1 servo-thread addf [PRUCONF](DRIVER).update servo-thread addf bb_gpio.writeservo-thread # ## # Axis-of-motion Specific Configs (not the GUI) # ## # # X [0] Axis # # axis enable chain newsig emcmot.00.enable bit sets emcmot.00.enable FALSE net emcmot.00.enable = axis.0.amp-enable-out net emcmot.00.enable = [PRUCONF](DRIVER).stepgen.00.enable pid.0.enable # position command and feedback net emcmot.00.pos-cmd axis.0.motor-pos-cmd = pid.0.command net emcmot.00.vel-cmd axis.0.joint-vel-cmd = pid.0.command-deriv net motor.00.pos-fb = [PRUCONF](DRIVER).stepgen.00.position-fb axis.0.motor-pos-fb pid.0.feedback net motor.00.command pid.0.output [PRUCONF](DRIVER).stepgen.00.velocity-cmd setp pid.0.error-previous-target true setp pid.0.maxerror .0005 #net emcmot.00.pos-cmd = [PRUCONF](DRIVER).stepgen.00.position-cmd #net motor.00.pos-fb = [PRUCONF](DRIVER).stepgen.00.position-fb #net motor.00.pos-fb = axis.0.motor-pos-fb # timing parameters setp [PRUCONF](DRIVER).stepgen.00.dirsetup[AXIS_0]DIRSETUP setp [PRUCONF](DRIVER).stepgen.00.dirhold [AXIS_0]DIRHOLD setp [PRUCONF](DRIVER).stepgen.00.steplen [AXIS_0]STEPLEN setp [PRUCONF](DRIVER).stepgen.00.stepspace [AXIS_0]STEPSPACE setp [PRUCONF](DRIVER).stepgen.00.position-scale [AXIS_0]SCALE setp [PRUCONF](DRIVER).stepgen.00.maxvel [AXIS_0]STEPGEN_MAX_VEL setp [PRUCONF](DRIVER).stepgen.00.maxaccel[AXIS_0]STEPGEN_MAX_ACC #setp [PRUCONF](DRIVER).stepgen.00.step_type 0 setp [PRUCONF](DRIVER).stepgen.00.steppin 0x4C setp [PRUCONF](DRIVER).stepgen.00.dirpin 0x4D # set PID loop gains from inifile setp pid.0.Pgain [AXIS_0]P setp pid.0.Igain [AXIS_0]I setp pid.0.Dgain [AXIS_0]D setp pid.0.bias [AXIS_0]BIAS setp pid.0.FF0 [AXIS_0]FF0 setp pid.0.FF1 [AXIS_0]FF1 setp pid.0.FF2 [AXIS_0]FF2 setp pid.0.deadband [AXIS_0]DEADBAND setp pid.0.maxoutput [AXIS_0]MAX_OUTPUT #(JP) Add home switch input net home-xyz bb_gpio.p8.in-10 = axis.0.home-sw-in setp bb_gpio.p8.in-10.invert 1 # # Y [1] Axis # # axis enable chain newsig emcmot.01.enable bit sets emcmot.01.enable FALSE net emcmot.01.enable = axis.1.amp-enable-out net
Re: [Emc-users] Fwd: Trying to merge the hal files etc For Crackling Motors
On 2/26/2014 8:10 AM, Mark Tucker wrote: This is my first attempt at merging the hal files and ini files following discussions over the crackling motors. Using 7i76e.zip from Peter Wallace I have attatched the Hal and ini file. All i get is no movement and a joint following error. Could anyone have a look and see if there is anything obvious?. Not sure if the files will be stripped from the post? I don't have time to fully review your changes, but you have to put the stepgen code in velocity mode or it will continue tracking the position_cmd and ignore the velocity_cmd. There is a control-type HAL pin that needs to be set to true (1) to put the stepgen in velocity mode. I didn't see that you were doing this in your HAL file, which would definitely cause problems. -- Charles Steinkuehler char...@steinkuehler.net signature.asc Description: OpenPGP digital signature -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: Trying to merge the hal files etc For Crackling Motors
Charles Your a star. It's running on the screen now so that is a start with no errors. I will plug it into the machine and play with the deadband etc. On 26/02/14 14:45, Charles Steinkuehler wrote: On 2/26/2014 8:10 AM, Mark Tucker wrote: This is my first attempt at merging the hal files and ini files following discussions over the crackling motors. Using 7i76e.zip from Peter Wallace I have attatched the Hal and ini file. All i get is no movement and a joint following error. Could anyone have a look and see if there is anything obvious?. Not sure if the files will be stripped from the post? I don't have time to fully review your changes, but you have to put the stepgen code in velocity mode or it will continue tracking the position_cmd and ignore the velocity_cmd. There is a control-type HAL pin that needs to be set to true (1) to put the stepgen in velocity mode. I didn't see that you were doing this in your HAL file, which would definitely cause problems. -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fanuc 10s ini-file
Folks I am happy, then with the help of Jon I got my Fanuc 10s servomotor running with his pico-systems universal pwm board, fanuc encoder und servo amp. Encoder runs and the motor is turning - somewhat... I was playing around with the parameters but never got a nice motor movement. following 0 error or - when I change FERROR and MIN_FERROR - the motor get in a loop and starts vibrating. Does anybody has the correct ini-settings for this motors? Thank you for help! -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Crackling motors using Beaglebone
I eventually managed to merge a few hal files and ini files to Change the stepgens etc to work in velocity mode. I have just connected up to the machine,and initial testing is excellent. Strange thing though ,i have not entered any deadband figures yet but the crackling seems to have gone. I will let you know how more in depth testing works out, but for now all is good. Can anyone tell me what the maximum figure is that i can set in the beaglebone for stepgen max velocity? At the moment my stepgen max velocity is 42 And the Max velocity is 35 At 1000 steps per mm I seem to remember it max's out at 45khz? On 24/02/14 17:22, Jeff wrote: Hi, I'm *guessing* that they are the older Geckos (non digital). The older drives had to have the DIR line stable for quite a time after the STEP pulse. I believe this was to manage the resonance compensation circuit. This makes me think the DIR line was not actually latched at the time of the STEP pulse. If this is the case, the external DIR line would play an active role in the direction the current is going to be going in the motor windings. Thus, at the start of each PWM cycle (about 20KHz) the DIR line would determine which direction the current should go (even in a stationary motor). As the DIR line changes, the standby current in the motor will be reversed. The rate of DIR reversal coupled with the 20KHz ends up giving a beat frequency in the audible range. Another guess would be that the actual noise signature would be where the drive stopped within the 10 microstep range. You could end up having 10 different crackling noise characteristics depending on which mic rostep you stopped at. While the noise might be annoying, I don't think (another guess) it would cause a problem for the drive as long as the correct DIR polarity is stable before the next STEP pulse comes in. Jeff Date: Sat, 22 Feb 2014 11:30:59 -0800 From: p...@mesanet.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Crackling motors using Beaglebone On Sat, 22 Feb 2014, Mark Tucker wrote: Date: Sat, 22 Feb 2014 19:20:57 + From: Mark Tucker m...@rmtucker.f2s.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Crackling motors using Beaglebone John Thank you so much for the insight of how that work and it explains a lot. But as you stated it would be hunting back and forth.Which i assume it would have to pulse the step line? And a number of people have scoped the outputs and only found the Dir line hunting back and forth,i wonder why it is not detected on the step line.? And if it is only the dir line,why would the motors make a noise at all? The internal stepgen position has a resolution of a small fraction of a step (1/1 of a step in Johns example) so it can hunt back and forth without emitting a step. As to why a step drive pays any attention to the dir signal without a step pulse I do not know, seems like a mistake to me. Peter Wallace Mesa Electronics -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] next big thing
Hi i have stepper motor from Keling Technology KL23H2100-35-4b and Microstep Driver kl5056 question: if i add to that stepper motor shaft encoder like http://www.ebay.com/itm/400P-R-incremental-rotary-encoder-400-pulses-MAX-mechanical-speed-of-1000-/330952664057?pt=LH_DefaultDomain_0hash=item4d0e50e3f9 will that motor will become closed loop and can be considered as a servomotor? question: what is benefit of using dynamic encoder - like i have - from servodynamics in compare stepper motor with + encoder that i found on e-bay ? i mean tangible benefit for cnc machine tool thanks aram On Wed, Feb 26, 2014 at 1:28 AM, andy pugh bodge...@gmail.com wrote: On 26 February 2014 06:11, a k pccncmach...@gmail.com wrote: my question is can i use on one system 3 ac servomotors and 2 stepper motors? Yes, there is absolutely no reason why not. (Your extra axes would conventionally be U and V rather than A and B) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Crackling motors using Beaglebone
The maximum step frequency depends on your PRU task loop time, which depends on how many tasks you're actually running. By default, the PRU task loop is 10 uS, which means step pulses can be generated every 20 uS (one period high, one period low) minimum, which gives a 50 KHz maximum step frequency. You can dial the PRU task period down if you need higher frequencies and are not running lots of tasks. IIRC the default setup I was using for my 3D printer took about 1.5 uS to run the code (4 stepgens and 3 PWMs), so there's a lot of safety margin. On 2/26/2014 11:38 AM, Mark Tucker wrote: I eventually managed to merge a few hal files and ini files to Change the stepgens etc to work in velocity mode. I have just connected up to the machine,and initial testing is excellent. Strange thing though ,i have not entered any deadband figures yet but the crackling seems to have gone. I will let you know how more in depth testing works out, but for now all is good. Can anyone tell me what the maximum figure is that i can set in the beaglebone for stepgen max velocity? At the moment my stepgen max velocity is 42 And the Max velocity is 35 At 1000 steps per mm I seem to remember it max's out at 45khz? On 24/02/14 17:22, Jeff wrote: Hi, I'm *guessing* that they are the older Geckos (non digital). The older drives had to have the DIR line stable for quite a time after the STEP pulse. I believe this was to manage the resonance compensation circuit. This makes me think the DIR line was not actually latched at the time of the STEP pulse. If this is the case, the external DIR line would play an active role in the direction the current is going to be going in the motor windings. Thus, at the start of each PWM cycle (about 20KHz) the DIR line would determine which direction the current should go (even in a stationary motor). As the DIR line changes, the standby current in the motor will be reversed. The rate of DIR reversal coupled with the 20KHz ends up giving a beat frequency in the audible range. Another guess would be that the actual noise signature would be where the drive stopped within the 10 microstep range. You could end up having 10 different crackling noise characteristics depending on which m icrostep you stopped at. While the noise might be annoying, I don't think (another guess) it would cause a problem for the drive as long as the correct DIR polarity is stable before the next STEP pulse comes in. Jeff Date: Sat, 22 Feb 2014 11:30:59 -0800 From: p...@mesanet.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Crackling motors using Beaglebone On Sat, 22 Feb 2014, Mark Tucker wrote: Date: Sat, 22 Feb 2014 19:20:57 + From: Mark Tucker m...@rmtucker.f2s.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Crackling motors using Beaglebone John Thank you so much for the insight of how that work and it explains a lot. But as you stated it would be hunting back and forth.Which i assume it would have to pulse the step line? And a number of people have scoped the outputs and only found the Dir line hunting back and forth,i wonder why it is not detected on the step line.? And if it is only the dir line,why would the motors make a noise at all? The internal stepgen position has a resolution of a small fraction of a step (1/1 of a step in Johns example) so it can hunt back and forth without emitting a step. As to why a step drive pays any attention to the dir signal without a step pulse I do not know, seems like a mistake to me. Peter Wallace Mesa Electronics -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] next big thing
On Wednesday 26 February 2014 15:29:32 a k did opine: Hi i have stepper motor from Keling Technology KL23H2100-35-4b and Microstep Driver kl5056 question: if i add to that stepper motor shaft encoder like http://www.ebay.com/itm/400P-R-incremental-rotary-encoder-400-pulses-MAX -mechanical-speed-of-1000-/330952664057?pt=LH_DefaultDomain_0hash=item4 d0e50e3f9 Link is a blank page in my busted FF27. will that motor will become closed loop and can be considered as a servomotor? That is generally a no, unless the stepper is running in idle mode. The problem is the negative torque curve of the stepper vs its speeds, meaning that if it slips a cog, it will be stopped as its in-capable of resuming the speed it was moving at when it failed by re-accelerating to that speed in a single step. All the feedback obtained from the encoder can do is attempt to speed it up to catch up, and its not capable of that while under the load that caused it to slip that cog in the first place. The best you can do with the encoders feedback is to use its error should the motor slip, to exert the fastest possible e-stop and hopefully save the part. If the part isn't damaged, then you'll need to rehome the machine and re-start the operation, running at a slower rate by sliding the feedrate knob to slower as that portion of the operation is being re- approached, hoping it will get thru the hard cut the next time. That said, I think there have been some attempts to use it, and you will find some discussion of it in the wiki. I have read it myself several times without fully understanding how it was used to dynamically rehome the slipped axis to get it back in step even after slowing the rest of the machine so it might be able to catch up with the rest of the machine now running slower. To me it seemed like a lot of expense and complexity for a limited CYA gain. Far better off to slow the operation to within the steppers abilities and/or raise the voltage on the drivers so the torque falloff is not as pronounced. I was nicely amazed by the speeds I could get out of my lathe, whose motors are running on around 37 volts, compared to the same motor and driver on my mill but running at 28 volts. A finicky 30 ipm on the mill, vs a rock solid 60 ipm on the lathe just by going up 9 volts. A side effect of the higher voltage on that particular driver, a 2M542 from fleabay at around a $50 bill a copy, is that this driver runs cooler at the higher voltage. But look it up on the wiki make up your own mind. I'm just the resident retired old fart. ;-) question: what is benefit of using dynamic encoder - like i have - from servodynamics in compare stepper motor with + encoder that i found on e-bay ? i mean tangible benefit for cnc machine tool thanks aram On Wed, Feb 26, 2014 at 1:28 AM, andy pugh bodge...@gmail.com wrote: On 26 February 2014 06:11, a k pccncmach...@gmail.com wrote: my question is can i use on one system 3 ac servomotors and 2 stepper motors? Yes, there is absolutely no reason why not. (Your extra axes would conventionally be U and V rather than A and B) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg. clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.c lktrk ___ 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. -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Re: [Emc-users] beaglebone fpga with linuxcnc
Hi, Got it. Thanks, Jeff Date: Wed, 26 Feb 2014 02:32:57 +0100 From: mic...@wp.pl To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] beaglebone fpga with linuxcnc Hi, http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=commit;h=39db4d1f16be2a3715d95c72eec8fa180bc91233 regards, Michael W dniu 26.02.2014 00:22, Jeff pisze: Hi Peter, Not being a LinuxCNC developer, I know little about branches etc. I went to git.linuxcnc.org where I figured stuff might be, but couldn't find anything related to hm2_7i90. Right now, I'm basically using the software provided with the MachineKit, and it doesn't seem to have 7i90 related stuff either (unless I'm totally lost - which could be.). Can you provide a link to where I would be able to download the hm2_7i90.c code? Thanks, Jeff Date: Tue, 25 Feb 2014 11:29:58 -0800 From: p...@mesanet.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] beaglebone fpga with linuxcnc I forgot one detail: for EPP interfaced hostmot2 on preconfigured FPGA cards you want to use the hm2-7i90 branch. Im hoping the features in hm2_7i90 can be merged with the hm2_7i43 driver so there is a common hm2_epp driver for all EPP interfaced HostMot2 cards. Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] next big thing
On Wed, 26 Feb 2014 12:24:08 -0800, you wrote: Hi i have stepper motor from Keling Technology KL23H2100-35-4b and Microstep Driver kl5056 question: if i add to that stepper motor shaft encoder like http://www.ebay.com/itm/400P-R-incremental-rotary-encoder-400-pulses-MAX-mechanical-speed-of-1000-/330952664057?pt=LH_DefaultDomain_0hash=item4d0e50e3f9 will that motor will become closed loop and can be considered as a servomotor? No - it's just a dumb drive. There are closed loop steppers and drivers and they behave much like brushless servos. See http://www.leadshine.com/category.aspx?type=productscategory=easy-servo-products Steve Blackmore -- -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fanuc 10s ini-file
On 02/26/2014 10:27 AM, Daniel Duesentrieb wrote: Folks I am happy, then with the help of Jon I got my Fanuc 10s servomotor running with his pico-systems universal pwm board, fanuc encoder und servo amp. Encoder runs and the motor is turning - somewhat... I was playing around with the parameters but never got a nice motor movement. following 0 error or - when I change FERROR and MIN_FERROR - the motor get in a loop and starts vibrating. Does anybody has the correct ini-settings for this motors? Here's the settings I use on my Fanuc test station: [AXIS_0] TYPE = LINEAR UNITS = 0.03937007874016 HOME = 0.000 MAX_VELOCITY = 1.20 MAX_ACCELERATION = 5.0 PID_MAX_VEL = 5 BACKLASH = 0.000 CYCLE_TIME =0.001000 INPUT_SCALE = -16 OUTPUT_SCALE = 1.000 PWM_OUTPUT_SCALE = -1 MIN_LIMIT = -10.0 MAX_LIMIT = 10.0 FERROR = 1.102 MIN_FERROR = 1.105 HOME_OFFSET =0.0 HOME_SEARCH_VEL =0.0 HOME_LATCH_VEL = 0.0 HOME_USE_INDEX = NO HOME_IGNORE_LIMITS = NO DEADBAND = 2e-05 P = 40 I = 0.3 D =0.25 BIAS = 0 FF0 = 0 FF1 = 0.08 FF2 = 0.0011 This is used with the encoder velocity estimation enabled, but should be close even without that feature. Jon -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
