[Len Butler]

How does one route a circle or arch shape using the router?

 

[Dan Thompson]

Try this web site. I have not used this site or made circles yet.

http://us.oak-park.com/catalogue.html?list=JIGS--

HTH

 

[cabinetsetc]

I have jigs set up in the shop but in the field when little else is available, I use a piece of baling wire . Put a screw in the centre of your circle area and the other end of the wire to the router base. If you don't want to mark the surface there are suction cup set ups you can buy at most router shops. Good luck.

 

[Woodnut65]

Hi Len:
you would use a circle jig attached to your routerto cut circles. Usually the jig is an extended base plae that you can screw on to the router in place of the regular base plate. By attaching the end of the base to the center of your material and simply run the router around after adjusting the jig to the diameter of the circle you may need.
If an arc is part of a circle you can use the same jig for an arch. If the arch is not a true arc, you can cut a pattern to follow with the router..
hope this helps. Woodnut65