I am having trouble with my shopbot link. When I drill shelf pin holes I get the ones on the right side breaking the melamine on the back side. The left sides are good. When I view the file it is going to within .01" of material depth. .635 material is drilling to .6251. Should be to 3/8". On the attached file all the uppers are like this. Won't attach. I get message extension TWD not allowed
Lorin