Quote Originally Posted by wmgeorge View Post
Ditto, we had over 20 pages posted on the Vectrics Forum a few weeks ago and it ended up being mostly user error. Just about exactly the same thing as here. User did not understand basic CNC flow pattern or G Code and we spent a lot of time on his issue.
When mine did it on one design and worked on all the other I searched for days and did air cuts and it still did it. after a week of searching I discovered that the Z axis had sawdust on the bottom of the rails and had packed in hard enough to stop the axis.and the z would position thinking it was higher than it really was when it retracted. oh yeah I made a few holes in the spoil board and projects. now I watch that area carefully.