Ebay 3040 issue with mach3 - incorrect scale when machining?

[camhguh]

The specified settings (400) worked for us with the same model machine. Unless they have used different leadscrews on yours, then those settings should work.

It could be an idea to double check your stepper motor couplings for tightness to confirm that their isnt any slippage.

[Wayne Kinney]

Thanks for the tip!

Thats a great idea, I was thinkig about drilling holes and then measuring this but your method is much better and as you say removes user error!

My caliper has 150mm max, which is bigger than the parts I mill.

Thanks again for the advice!