Thread: Conundrum Curiosity Complex.

Not exactly sure of the "burst velocity" of circular saw blade, but I do have access to a 5 HP 12" table saw that runs fine through just about anything, including nails, at 3500 RPM - that's around 180 ft/sec. As long as you stay below 1000 ft/sec (19500 RPM on a 12") you should be fine. With a bicycle drive, you will probably on get around 1000 RPM.

Why 1000 ft/sec max? Speed of sound is around 1200 ft/sec and the air around rotating parts starts doing freaky things around that speed. Just accept the "freaky things happen" and don't go down that rabbit hole.