Hi Guys,

I'm using an UC300ETH with UB1 Brake-out board for a while now with no problems.

But now I have a little issue I can’t solve by myself.

The following is happening:
When I start the program.
UCCNC sometimes skips about 300 lines of code. Which almost every time results in a broken drill bit and a wasted work piece.
Most times after a couple of holes, sometimes right at the beginning.
It only happens during the drilling. For the rest there are no problems, all working fine.

Have you seen this before? And perhaps know what I can do about this?

I am using Fusion 360 for CAM software and UCCNC for motion control.
I included the G-gode for you to look at. (but I don’t see anything out of the ordinary)

I don’t know if it is relevant, but the part is drawn in Solidworks and imported to Fusion 360

I hope anyone can help me, thanks in advance.