Re: [CAD_CAM_EDM_DRO] Re: Bridgeport Boss 6 Stepper Motors

At 10:50 PM 6/14/02 -0000, you wrote:

>I was looking at some 400W, 3000RPM servos that would provide about
>600lbs of force with 300 IPM rapids on a continuous basis with a 2:1
>reduction.

Here's a data point: I use 42 frames in 450 and 600 oz inch. Run them all
on ten amps total. Gearing is 2.5:1 on a 5 mm ball screw. These have never
had any problem pushing tooling around in holders or shifting chucked work,
etc, if crashed. The cog-belts, rated at 100 lbs, have been a problem in
fact til I asked Berg to double-crimp some for me.

Regards, Hoyt


Anti-virus request: Please do not add this email addy to address books
Belfab CNC - http://www.freeyellow.com/members/belfab/belfab.html
US Best MC - http://www.freeyellow.com/members/batwings/best.html
Camping/Caving - http://www.freeyellow.com/members/batwings/caving.html
Trust the crowing of the cock but not the tolling of the clock