I can sell you replacements, best to send me pictures of what is broken.
CAn you verify your rapids as shown in this picture, these should be the exact numbers to use.
The other screen are your feedrates, etc. What are these set at? You should have these much lower than the previous, I use about 12mm/s XY, and 3mm/s Z
If your z axis is going too deep, how far is it going. You set it for 2mm, how deeps does it actually go (close approx is fine here). What leadscrew do you have, Did you get everything from me?
What bits are you using, all of those red router bits or do you have some 1/8″ endmills?