Draw a circle with a square - Tack two nails to set the diameter you want, then rotate a framing square against the nails while you hold a pencil in the corner of the square. Rub a little wax on the square so it slides easily.
Detail of Board Title / Radiata Pine Board / Chuck Five Font / Left Natural - Without Lacquer Finish
Need to make a dado or two? Not everyone knows this, but you can make dadoes on your miter saw. Yep, on your miter saw. No need to put a dado head on your table saw, or set up a router bit in a hand-held router or on a router table. If your miter saw has the right flip down stop, you can use it to make dadoes.