I recently needed to cut a 7-ft.-radius arc in a piece of plywood with a router. After thinking about it for a while, I came up with this wall-mounted router-compass fixture that lets me work at a convenient height on sawhorses.

I started with a 7-ft.-plus length of 3/8-in.-thick plywood, 6 in. wide, and added a bracket on one end to provide a surface to attach an ordinary door hinge. I mounted my plunge router on the other end of the plywood, 7 ft. from the center of the hinge. I then secured the hinged end of the fixture to a cleat on my garage wall at the same height as the workpiece resting on the sawhorses. To cut the arc, I secured my workpiece on the sawhorses so that the 7-ft. arc was in the right location, and I made several passes.

Lance D. Shields, Layton, Utah

Fine Woodworking Magazine, February 2002 No. 154

Fine Woodworking Recommended Products

Hedgehog featherboards

The Hedgehog's unique spiral shape and single knob make it easy to set up and fast to adjust.

Buy at Amazon

MicroJig Matchfit dovetail clamps

These unique clamps have angled tips that hold templates and fences in place without getting in the way.

Buy at Amazon

Ridgid EB4424 Oscillating Spindle/Belt Sander

With five spindles sized from 1/2 in. to 2 in. and a 4 X 24-in. belt, this sander has become a staple in many a shop Fine Woodworking visits.

Buy at Amazon