Quote Originally Posted by Snapper View Post
There are so many things that could be causing this.

Are all those top surfaces cut by the same tool in the same set up? I can't see how you're cutting 1.7mm too deep from the side wall to the pocket surface, but then the pocket surface is only 1mm deeper than it should be compared to the bottom surface so I think this is a set up error. If you're sure you're setting your Z height accurately, its probably an error in the heights or stock to leave.
There is no stock to leave. Z height is all the same for all the operations.
I am using the 6mm roughing bit for most of the milling on this part. It does all the surfaces too.

I just ran the operation again but specificity all the heights manually from stock bottom and now it is just 0.3mm out.

The towers are all the correct height which is okay. But the bottom being so far down means my PCBs don't sit and the part that sits in the curved section is not being clamped down, it is just lose as there is 0.6mm too much Z.

This is definitely something in my Fusion operation.


I do have the minimum Z DOC at 0.5, so why it is cutting down at something not divisible to that, idk..