CAD CAM EDM DRO - Yahoo Group Archive

Is a 250 oz motor with 2:1 ratio 2/3rd as fast as a 500 @ 1:1

Posted by ibewgypsie
on 2004-03-26 15:32:49 UTC
I recently gave some advice to another board member.

I suggested he try a simple cnc to get his feet wet. I suggested 250
oz motors and gecko drives. A 250 oz motor on ebay goes for about
10-20$ usually.. A 500 oz goes for $100 at times.. I have bid on
several Bridgeport nema 42's and gotten my feelings hurt.

Given the smaller frame size, shouldn't it run at a much higher
frequency? I hope Mariss gets in on this, he is sharp on these things.

I was hoping he'd get his feet wet for less than $200 total. Lots of
designs out there including the Lini-stepper Unipolar stepper @$30.
*(much slower than a gecko thou) How come it costs so much to learn?
My first stepper was controlled by a opto-22 card with ODC5 modules,
ceramic resistor and raw Dc supply. I toggled the 4 bits to step it
with the software.

David

Discussion Thread

ibewgypsie 2004-03-26 15:32:49 UTC Is a 250 oz motor with 2:1 ratio 2/3rd as fast as a 500 @ 1:1