Re: [Emc-users] Knee mill w/ encoder on knee
Sven, How did you fit the knee motor? I'm considering it myself but looking for some more details. I figure I'd have to mount knee limits on both ends of travel, and figure out how to fix the motor. Matt I didn't, both the Abene and the Deckel was factory built. The guys I know that have made a knee-Z on Bridgeports have done it in different ways. The simple solution is a motor on the shaft for the crank. The De Luxe version is a new ballscrew and a rotating nut. Both runs, one is super exact but expensive... /S -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] What should I do to get the performance back?
Guys, I know, poor performance is a every-now-and-then-upcoming-debate... I had pretty good performance with my old servo drives and Ubuntu 8. I upgraded to better (more secure) and faster drives and the speed was marvelous. And then I upgraded to Ubuntu 10 and lost 30 % speed. If I push the values higher I get RTAI errors. I'm not using the latest drop, and I think that's not the issue. I would like to keep Axis, I like it. I really not want to step back to Ubuntu 8... Anyone with a good speed up suggestion? Should I go Debian? Turn the graphic into monochrome?.. Regards, Sven -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] What should I do to get the performance back?
On 23 October 2012 09:48, Sven Wesley svenne.d...@gmail.com wrote: I really not want to step back to Ubuntu 8... If it worked better, why not? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT - CNC Workshop not to be hosted by Digital
On Fri, Oct 19, 2012 at 11:19 AM, Dave e...@dc9.tzo.com wrote: The north side. She has an apartment on Wisconsin Ave in Chevy Chase, MD. Technically, a block or two outside of DC. It is a nice area, but a little crowded. You can waste a lot of time sitting in traffic if you are not careful. Dave Brutha, that last sentence is a bit of an understatement... ;-) If your daughter ever needs assistance with anything in the area, I'd be happy to lend a hand. Mark -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] LinuxCNC Week in Wichita
Hmmm - No boat needed for me, just 25 hours driving and 2,367km each way! (Ottawa, Canada) Sounds interesting, though. Maybe I'll see what flights cost. Thanks for the place/time; --- John Alexander Stewart -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT - CNC Workshop not to be hosted by Digital
On 10/23/2012 7:19 AM, Mark Wendt wrote: On Fri, Oct 19, 2012 at 11:19 AM, Davee...@dc9.tzo.com wrote: The north side. She has an apartment on Wisconsin Ave in Chevy Chase, MD. Technically, a block or two outside of DC. It is a nice area, but a little crowded. You can waste a lot of time sitting in traffic if you are not careful. Dave Brutha, that last sentence is a bit of an understatement... ;-) If your daughter ever needs assistance with anything in the area, I'd be happy to lend a hand. Mark Thanks Mark, I'll keep that in mind. :-) Dave -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] LinuxCNC Week in Wichita
On 10/22/2012 9:32 PM, Jon Elson wrote: dave wrote: I'm intrigued by Jon's work on the serial Fanuc encoders. Those could be really nice on a tight machine. Quadrature plus index works now, I have a professional board made. I will eventually have the commutation signals added to the output. The encoder counts come out in bursts, the position is read 10,000 times a second and whatever movement is detected is sent as a burst of quadrature counts. Not an optimal scheme, but that is what you are left with due to how the serial encoder works. Jon -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users The Balluff linear position sensors with the incremental encoder output option work in a similar fashion. Dave -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Stupid LinuxCNC Tricks
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 So I finally cobbled together enough pieces to glue LinuxCNC to my 3D printer and get a print. Figured I'd share in case anyone else reading this list is as crazy as I am. :) Photos: https://plus.google.com/photos/106079792142766516843/albums/5802703397921008689 Video: http://www.youtube.com/watch?v=DqnAU1g5Rys The first print (in the video) failed because I don't have the bed heater working yet, so I added some blue tape and printed again successfully (photos). Details: Motor control is via straight-forward connection of parallel port pins to the appropriate step/dir pins on RAMPS, although VCC on the RAMPS is tied to 3.3V instead of 5V to insure the A4988 stepper drivers recognize the 3.3V parallel port logic levels. The extruder heater is implemented using an open-collector inverter on one of the parallel port lines to provide 12V swing instead of the 3.3V my parallel port drives. The resulting 12V signal is used to control the stock FET on the RAMPS board. The extruder temperature is sensed with the existing RAMPS thermistor circuit (running on 3.3V VCC), using an I2C A/D converter on my interface board. The I2C interface is implemented using two output pins and one input pin. The SDA output pin is inverted and drives an open collector inverter to allow bidirectional communication. I wrote a custom HAL module to bit-bang an I2C interface to the ADC using the existing parallel port driver, and another one to turn the raw ADC readings into degrees Centigrade. Add a comparator HAL module to serve as a bang-bang thermostat control, and it's time to print! Oh...and everything is running under a stock Debian system using the preempt-rt patched version of LinuxCNC (not required...the Ubuntu version with a custom RTAI kernel will work just fine too). I'll post the code and more details as I get time, probably on the RepRap wiki. The ultimate goal of all this is to make a delta-arm 3D printer and use kinematics in LinuxCNC for the tricky math bits that are hard to do on the AVR micro-controllers most 3D printers use for control. - -- Charles Steinkuehler char...@steinkuehler.net -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlCHYq8ACgkQLywbqEHdNFwG9wCgvmSbm4fN5e0KtGRSfXqgPZrm 2EoAoKwOGIVqSaopPwJE2wWzDpziajaK =3yWP -END PGP SIGNATURE- -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stupid LinuxCNC Tricks
you go charles -- jeremy youngs -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stupid LinuxCNC Tricks
On 10/23/2012 09:38 PM, Charles Steinkuehler wrote: Oh...and everything is running under a stock Debian system using the preempt-rt patched version of LinuxCNC (not required...the Ubuntu version with a custom RTAI kernel will work just fine too). Oh, just one little detail ;-) Cool Charles! I'd love to see your config added to the sample configs we distribute -- Sebastian Kuzminsky -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stupid LinuxCNC Tricks
On 10/23/2012 11:54 PM, Sebastian Kuzminsky wrote: Cool Charles! I'd love to see your config added to the sample configs we distribute Ditto to that! I'd like to see this become commonplace! -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stupid LinuxCNC Tricks
Outstanding! N. Christopher Perry On Oct 23, 2012, at 23:38, Charles Steinkuehler char...@steinkuehler.net wrote: delta-arm 3D printer -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
