Falcon 2 not repeating

I am engraving the same parts over and over. When it finishes it goes to the start spot but when I start it again it drives left and hits the side of the gantry and errors out. I restart it and the same happens. Any help appreciated

Note that you are using current position

Therefore the laser will always “start” from where it is
If you have a small slack on belts, this start point might drift

if you want reputability you need to use Absolute Coordenates and home between each movement

Seems to me however most of your problem is probably based on belt tensioN
Try running this test and send the result please?
Dot Test with Angle.lbrn (46.3 KB)