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Author Topic: Mach3 Jerky motor motion when Using MDI input  (Read 145 times)

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Mach3 Jerky motor motion when Using MDI input
« on: May 18, 2021, 09:54:22 PM »
I'm after some help with Mach3 running an XHC controller (ethernet), Fully licensed version

I've been through all the motor tuning and the machine (3 axis router) runs smoothly when running code and or jogging with arrow keys + shift.

I've seen multiple posts on similar issues but not found a solution that works on any.

When i try entering and MDI instruction or try to use go to zero, the motors get jumpy and in most cases lose their position very quickly.

This is very frustrating and confusing as I understand the motor tuning sets the max allowable speed and when jogging at 100% the movement are perfectly smooth.