We retrofitted our Multicam cnc router to mach 3 some time ago after finally losing it with multicam support for the electronics, pendant etc. One thing we have struggled with the whole time with this machine has been issues with chatter and cut precision when changing direction. I discovered that while the motors weren't stalling, the accelerations have been too high creating shake in the spindle during abrupt starts and stops. Is there a formula to figure out safe minimum acceleration speeds for a given feed rate. We never cut much above 150 ipm.
Thanks!
-Ed