Nearly crashed my denford triac machine and not sure what went wrong, help please?

[JAZZCNC]

one thing i can think of is that you shifted Z0 25mm below the part and you did not change the quote of safe Z, where the rapids movements are.

No unfortunatly that wouldn't explain the shift to the side and also Safe Z is Machine coordinate position not Work coordinate. It has nothing to do with the parts your cutting other than it lifts the Z axis to a safe MACHINE coordinate position before rapid moves.

This will be either Mechanical slippage of a coupler or motors are over tuned and it's loosing steps/position while cutting.

[suesi34e]

Hi Jazz,

Cheers very much for your reply here mate as I am very keen to get to the bottom of things. Unfortunately, I did not return to Z zero my initial thought was to get up and out of the material. I will know next time to try and return to zero, not sure how I should have done that x zero, y zero was centre of the hole. It happened on my Denford Triac, it seemed to me like the plastic was being cut like butter as I had been taking it what I thought was real easy! I will get the following later: Motor spec, Motor tuning, Feed and cut rates and I may also take a video cutting above the job so you can hear the motors.

Many thanks

Suesi