Oh my, I did not think about that! That would also eliminate tapers as well. I'll be changing that for sure.
On Jul 10, 6:49 pm, "Tim Krause" <artmarb...@comcast.net> wrote: > Pro's of the direct drive is no backlash. My concern is lack of power. > That's why most people have timing belts or gearheads (gear heads designed to > work with stepper motors) I believe legacy's first cnc version used laser > cut gears and I'm sure that was a source of backlash. Their latest use > gearheads, and I don't know what the Arty is using. Does anyone else know? > > I also noticed that the motor mount for the "A" axis is mounted to the > outside rails. If it was mounted to the inner you would be able to tilt and > raise the table. > > -Tim > > > > > > > > ----- Original Message ----- > From: Dustin Yoder > To: legacy-ornamental-mills@googlegroups.com > Sent: Sunday, July 10, 2011 3:36 PM > Subject: RE: Build log of sorts for a 1200 upgrade to CNC > > Tim, yes, direct drive, is that a problem? I noticed others going with a > belt and pulley system. Is there a reason for that? > > Curt, each axis is attached by a spider shaft coupling, the x, y and z are > 5/8" and the spindle (A) is 3/4". I reversed the X axis leadscrew so that I > could attach the coupling without interference from the square end that the > handle attaches to. Other than that, the couplers just slide on and lock with > an allen screw. > > Photo 1: X-axis coupled to stepper. > Photo 2: Opposite end of X-axis. > Photo 3: Spindle. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en.
