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? +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ "Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist." -Kenneth Boulding, economist “How unfortunate that the Earth’s first intelligent social animal is a tribal carnivore” -E.O. Wilson, sociobiologist >________________________________ > From: John Alexander Stewart <ivatt...@gmail.com> >To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> >Sent: Saturday, July 5, 2014 7:54 AM >Subject: [Emc-users] Help requested - stepper drivers. > > >Hi all; Hope this question is considered on-topic, or at least not too far >off. > >I'm doing another CNC conversion - my largest yet. G0704 (BF20) style mill, >and I'm wondering about stepper drivers. (Have a Mesa 5i25/7i76 combo; >maybe my next machine will be servo) > >I'm wondering about drivers - I have as spares a Gecko G540, some 48v 7.5a >switching power supplies, a couple Gecko 3.5A drivers (the ones in the >G540, but standalone) but wondering: > >1) digital drivers, eg automationtechnologiesinc.com ones, are they worth >the price? > >2) China drivers look the same as 1); presumably the technology is the >same, just name-badging; > >3) Europeans seem to use smaller steppers than North Americans; is there >much savings (e.g., power, heat) from using smaller steppers? I'd guess so. > >I'm in Canada, so shipping from the USA or China or Europe is about the >same - expensive - so source location is not an issue. > >It does seem a shame to purchase new drivers and power supplies, but I >might as well do this machine "right". > >Thanks for any insights you might give. > >John A. Stewart. >------------------------------------------------------------------------------ >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 > > > ------------------------------------------------------------------------------ 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
