Here I am in garage 1h 40 mins in to a carve I have my ear muffs on working on another project I forget my carve going on in the back ground and some how it starts missing steeps on the z axis and this is the end result was going so well to.
Aside from the error, great graphic! Hope you find the source of your issue.
well at least it will look killer when done… cant wait to see
Check the screws on your z axis pulleys. Replace worm screws with cap heads if they’re loose