Pin Router for a Sears Radial Arm Saw

Step 5 Holding the router body

My router has a round body with no rack and pinion adjuster, but rather a large threaded ring that fits around the whole body and acts on threads around the body of the router.  I made two squares from the 3/4 inch birch that were 5 5/8 inch on each side.  I mounted them on a lathe faceplate and turned out the center sections to leave an open circle the same size as my router body, which is 3 13/16 inch.  (The image is from Google Sketch-Up.)