my cnc

[ZASto]

Acceleration too high so you are loosing steps, that's why you have only 4.44mm travel on second try.
As I wrote, you should calibrate your machine. Not only Steps Per, also Acceleration and Max Speed. All of these for each axis.

[SPIKE]

hi again yes i had a 4.44mm travel but the z axsis was set to only travel 1mm i agree with you i need to set all my perameters correctly clive sent me a video showing just how to do that.
Colin

[Clive S]

hi again yes i had a 4.44mm travel but the z axsis was set to only travel 1mm i agree with you i need to set all my perameters correctly clive sent me a video showing just how to do that.
Colin

Colin check your PM