Posts: 735
Threads: 34
Joined: Feb 2012
Location: Minneapolis, MN
(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 ...
Posts: 375
Threads: 53
Joined: Jun 2013
Location: Jonesborough, TN
The following 1 user Likes chucketn's post:
DaveH (01-29-2016)
I used a NEMA23 with my Arduino setup to control a 4" Vertex RT, which is 90:1. Works great. I have made several gears with it.
Chuck
Micromark 7x14 Lathe, X2 Mill , old Green 4x6 bandsaw
The difficult takes me a while, the impossible takes a little longer.
Posts: 2,618
Threads: 100
Joined: Dec 2014
Location: Michigan
(01-29-2016, 12:42 PM)EdK Wrote: I have a NEMA 23 stepper motor if you want one for the cost of shipping.
Ed
Depending on the length, I will probably take you up on that. PM about to be sent.
Thanks Everyone!!!
