On 7/5/2014 3:14 PM, Marcus Bowman wrote: > Not necessarily. I'm using 600NM NEMA 34 triple stack steppers, with Gecko > 201s running at 78volts. PSU is based on two toroidal transformers, giving up > to 10A at 80v for up to 4 steppers. Over current and over voltage protection, > with soft start - overkill really. > That size of stepper can each provide the equivalent of 1/4 horsepower, if my > rough calculations are correct. > That should be enough for a mill up to the size of a Bridgeport. > I just don't believe in trying to trim the size or power of a stepper to save > a few pounds/dollars. I'd rather over-spec slightly in the knowledge that I > have power in hand.
I'm using 1600 oz/in steppers in place of 120 volt brush type DC servo motors. The steppers are about 1/3 the size of the servos yet have more torque at the same RPM the servos achieved their peak torque. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ 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
