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fhqwhgads · 12-20-2004, 08:05 PM

If you have a router, making a trammel for it is just about the only way to get a perfect circle.

http://www.woodworkingtips.com/etips/etip030201wb.html

I've tried to use a rotozip with a circle cutting attatchment in wood, and I didn't have very much luck. You can't control the depth of the cut, so you have to cut the entire thickness in one pass... the bit had a tendency to wobble in the collet, and the circle came off imperfect. I've made a trammel for my router, and cut the circle 1/4" deep at a time, until I got all the way through. It made a perfect, smooth circle.

Good luck.

12-20-2004, 08:05 PM	#4 (permalink)
fhqwhgads Junkie	If you have a router, making a trammel for it is just about the only way to get a perfect circle. http://www.woodworkingtips.com/etips/etip030201wb.html I've tried to use a rotozip with a circle cutting attatchment in wood, and I didn't have very much luck. You can't control the depth of the cut, so you have to cut the entire thickness in one pass... the bit had a tendency to wobble in the collet, and the circle came off imperfect. I've made a trammel for my router, and cut the circle 1/4" deep at a time, until I got all the way through. It made a perfect, smooth circle. Good luck.