Quote Originally Posted by Danielroyal25 View Post
Hi Matt,
what did you do in the end to overcome this problem? my machine was doing this the other day on a simple rectangular profile with rounded corners. It was only happening on the 2 opposite corners. will check if the settings are the same for x and y, but if they are identical how did you resolve it?
Dan if it's jurking just in the corners then chases are your running G61 Exact stop mode. Your better running in G64 constant velocity (CV) mode.
If your using Mach standard 1024 screen set then you can tell by the LED light just to the right of the Reset button and next to Dwell LED. It will be lit green when in G64 CV mode and off when in exact stop.

To test this type G64 into MDI before running the G-code again. First check the G-code for G61, it will be somewhere near the top of the code and delete if there. You could always put the G64 command in the G-code file but I wouldn't.

Better place to do this is the initialzation string in the General Config so when Mach starts up it's always in G64 mode. There is actually a setting in Gen config for this as well so check that but having both doesn't hurt.