On Sat, 5 Jul 2014 09:33:37 -0700, you wrote: >I don't know about the newer digital drives from Automation Technologies but I >have my gantry router set up with these: >http://www.automationtechnologiesinc.com/products-page/stepper-nema23-3-axis-kits/cnc-stepper-motor-3-axis-kit-2. >They have performed flawlessly for nearly 5 years driving 2 TPI screws on my >router, sometimes running for 8 hrs in +90 F conditions. > >I have been curious about the closed loop systems A-T offers but haven't found >any feedback from users yet: >http://www.automationtechnologiesinc.com/products-page/nema23-closed-loop-stepper-motor-system-hybrid-servo-kit/nema23-282-oz-in-closed-loop-stepper-motors-3-axis-cnc-kit-110vac220vac-2 >Does anyone have any experience with these?
Not that particular motor or drive - I'm using a couple of the Leadshine ones on the router, ES-M22430 Nema 24 motors (425 oz/in) and ES-D1008 drivers at 72VDC (Max 70VA/C or 100VDC) Ones above look like the Leadshine D508 drives with the M32320 motors - Max 50VDC and 232 oz/in motors. I got one to test - replaced the X axis drive system - so impressed I BOUGHT two more! None of Leadshine's specifications or claims are exaggerated. Acceleration is fantastic, no lost steps with much higher feed rates too. Settle time is very quick with no dithering like the crap Gecko 320 servo system I tried and scrapped. They are so easy to tune if required but they seem to work perfectly for me out of the box. All the details are on http://www.leadshine.com/ under easy servo products. Still got Z axis to do, but I need a new drive enclosure as the drives are physically much bigger than the old ones they replaced and it needed tidying up anyway. Got the new enclosure and started but router work keeps getting in the way. Steve Blackmore -- ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
