Originally Posted by
thomasks
I just completed upgrading my desktop cnc router to a large size shop cnc router. The ball screws and bearing slides are 1500 mm (or about 59") and is built from 80/20 and aluminum stock. The workable area now is 48" x 48" and I have put down a MDF spoilboard that I have been struggling to surface. The surfacing bit I have is a 2" 4 flute with a 1/2" shank. It is required to spin about 18000 rpm and cut at 200-600 ipm. I cant get my axis to move that fast without stalling. I am using Stepper Online motors and drivers. The motors are Nema 23 hi torque 3.0Nm(425oz.in) 200 steps per rev. 4.2A
I have a 1000W 48VDC power supply dedicated to the drivers. The stepper drivers are DM542T model (V4.0) the microstepping is set to 6400 steps per rev, and I was thinking this may have something to do with it. I cannot get over 100ipm with out stalling.
Any ideas?
Thanks