Quote Originally Posted by Wal View Post
The other day I tried milling these switch mounts out of the ali that Apple use for their Mac Pro towers, which just shredded up like this:

Any recommendations on the grade of 3mm aluminium sheet I should be looking at for this kind of profile cut?
Were you using any coolant? A little spay of anything wet can make all the difference. 6082 is a readily available grade that's easy to cut. Avoid 5xxx series grades.