[mactec54]

And what cause z axis gaining? Is this also emi noise issue ?

Yes it can be EMI noise, from bad wiring and Grounding, check that the cutter is not moving out of the collet, if not correctly torqued up the cutter can also get pulled out

[Chmfhm]

Yes it can be EMI noise, from bad wiring and Grounding, check that the cutter is not moving out of the collet, if not correctly torqued up the cutter can also get pulled out

I install emi noise filter on my 220v and also take out breakout board from controller box and sit it aside now laptop or software lagging is finished.

I will try a 3d cut later hope it will work well. If problem remain same then I'll reply back