CAD CAM EDM DRO - Yahoo Group Archive

Re: Servo or sterpper motors. on small mill?

Posted by paultitchener
on 2007-03-23 10:06:32 UTC
I think this point below, from a link listed by a previous poster is
an important one that sometimes people miss-

"1) Dynamic response, accelerate faster when starting and stopping,
and changing direction."

Its not quite as simple as saying that servos will have faster
rapids, they also will be able to do cut workpieces that require
quick changes in cutting direction more quickly.

I have steppers on my BP sized mill, and its been a great machine for
me. However, sometimes the stepper limitations slow me down, last
time was when I was engraving a prototype case. When engraving you
want to run as much RPM as you can, 5600 in my case, and at that RPM
you'd like to be able to feed at 10 to 20 ipm. However with my
steppers there was way too much rounding of the corners of the text I
was engraving, and I had to slow down to 5 ipm or so to get rid of
the excess rounding.

I didn't start from scratch with this machine, I bought it with the
motors in place and a blown controller, but if I was starting from
scratch I'd go the servo route, not just for faster rapids but also
for faster cutting without accuracy loss.

Paul T.

Discussion Thread

subsailer326 2007-03-22 14:42:26 UTC Servo or sterpper motors. on small mill? turbulatordude 2007-03-22 19:12:29 UTC Re: Servo or sterpper motors. on small mill? Leslie Newell 2007-03-23 02:38:17 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo or sterpper motors. on small mill? Fred Smith 2007-03-23 05:11:10 UTC Re: Servo or sterpper motors. on small mill? Philip Burman 2007-03-23 05:27:27 UTC Re: Servo or sterpper motors. on small mill? R Rogers 2007-03-23 07:20:00 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo or sterpper motors. on small mill? paultitchener 2007-03-23 10:06:32 UTC Re: Servo or sterpper motors. on small mill? Ken Campbell 2007-03-23 10:50:41 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo or sterpper motors. on small mill? ballendo 2007-03-23 14:26:43 UTC Re: Servo or sterpper motors. on small mill? ballendo 2007-03-23 14:30:05 UTC Re: Servo or sterpper motors. on small mill? ballendo 2007-03-23 14:41:19 UTC Re: Servo or sterpper motors. on small mill? turbulatordude 2007-03-24 04:37:58 UTC Re: Servo or sterpper motors. on small mill? Fred Smith 2007-03-24 08:09:00 UTC Re: Servo or sterpper motors. on small mill?