How to cut miters with a miter sled
Cut 45 degree miters that close a frame square, one end on each fence of a miter sled.
Chapters
How to build one: Miter sled
A miter sled's two fences form a V at 45 degrees to the blade. Mitering one end of a piece on each fence makes any small error cancel, so the corners close at 90 degrees.
Transcript
0:03 The fences form a V pointed at the blade. Hold the board on the left fence, its end at that stop ten inches out, and push it through.
0:18 Turn the board end for end and miter it on the right fence, its stop at eight and a half. One end on each fence closes a frame square.