Originally Posted by
bulgie
How does the wall thickness affect the miter angle? (I think it doesn't.) It has effects, like how much the tube wall deflects under tool pressure, and how likely a tooth on your holesaw is to "catch". But nothing that could cause your angle to come out wrong.
I can't even figure out why they would ask you the wall thickness — it's irrelevant.
Mark B
It shouldn't affect the angle but the program needs to know the thickness because it's trying to make the inside surface of the cut tube touch the parent tube. It's ID to OD (and how you bevel the tube walls between the ID and the OD is up to you). So although it doesn't affect the angle you can see that a very thin wall makes the throat much deeper on both sides which explains Tom's problem.
