when making miters. You don't have to mess with fussy protractors or drafting triangles or stuff to cut accurate miters when you use a router bit. A chamfer bit in a router table or a chamfer bit used with a pattern straightedge can generate miters for lots of corners. If square corners are not good for your project there are specialty bits at many of the popular angles for 6 and more sides in quite a few of the tool catalogues on paper or online. Try this technique.
https://www.infinitytools.com/blog/2016 ... uter-tableThe vid at the end of the article repeats the text with the explanation becoming much clearer.