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Ken Nicholas Photography Astronomy & DIY CNC

Improved stepper running

April 16, 2015

Today I had a friend around and I was showing him the CNC machine and also the issues I am having with the X axis stepper and rough running at slow speeds.
In the process of changing settings to demonstrate the problem at its worst I changed the step rate to 100 steps per mm, I hadn't gone this low before but to my surprise the running was makedly improved and the rapid speeds achieved were up to 1500 mm per min.
I tried to go higher but started to run into stalling issues at around 1600 mm min. so I backed it off to a stable setting.
Tomorrow I will try some different pulse width settings to see if I can improve things a bit more.

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