If you accidentally toggle it on, the fix is luckily very simple. Click the # key on your keyboard to instantly toggle UI ...

If you have a 3D printer already, do a Google search for press brake tooling, punches, or dies, and include STEP or STL files ...

Can a shape pass through itself? That is to say, if one had two identical solids, would it be possible to orient one such that a hole could be cut through it, allowing the other to pass through ...