01-29-2016, 12:53 PM
(01-29-2016, 11:58 AM)arvidj Wrote: I had the same question years ago. It was pointed out that the worm on my table was 90:1 so the big deal was the need to overcome the friction rather than overcome what ever mass based inertia from what might be on the table. A NEMA 23 was recommended. I have the motor, the tables, the stepper driver and the controller ... http://www.worldofward.com/rotarycontroller/ ... but have not gotten a round-to-it to try it out.
http://divisionmaster.co.uk/divisionmaster.html for suggestions.
More data points that might be of interest ...
http://www.sherline.com/8700pg.htm ... Stepper Motor120 oz-in, 2 Amp, NEMA 23 Frame size, 400 steps per revolution
http://bbs.homeshopmachinist.net/threads/45118-Stepper-size-for-a-Rotary-Table?p=616484#post616484 ... for an 8 inch table ...