Keyhole Router Bit Jig : 4 Steps (with Pictures) - Instructables

Furthermore, I wanted a quick and easily repeatable system because there were a total of six holes to cut. Thus I embarked on another DIY jig journey…. The slot accommodates a sliding pivot pin that is used to set the circle diameter. The pivot pin slider plate travels in this groove. Note the OSHA-approved footwear.

I spent a good chunk of time coming up with a satisfactory sliding pivot apparatus. Initially, I drilled and tapped a hole into the top of a hex bolt and threaded a 10 machine screw into the hole. This is what is depicted in the photo below. Well, the problem was that once the hex bolt was tightened, the bolt head dug into the relatively soft PVC material. This made it difficult router hole jig in make fine adjustments because the bolt wanted to slip back into the recessed area.

Version 1. It connects to a threaded knob on the top side of the jig which is used to lock the slider in place. On one end of the metal slider, I drilled and tapped a hole for a 10 machine screw that functions as the pivot pin. The screw is screwed in from the top and can easily be replaced if it were to bend or break.

This slider design worked much better than the version 1. To drill these attachment holes, I used the plastic base plate of the router as a template. I also had to purchase slightly longer mounting screws from the local Ace Hardware store router hole jig in the jig is thicker than the stock plate.

Tip: bring an existing screw with you to the hardware store to make sure you find ones with the same thread pitch and diameter. I purchased M4x16 metric screws.

To use the circle cutting jig, I first use a compass to lay out a circle of the desired diameter. Tip: router hole jig in Router Hole Cutting Jig Guide the drill bit router hole jig in on the jig for future reference.

I then tighten the star knob on top of the jig to lock things down. I was router hole jig in happy with the quality of router hole jig in cut. It took approximately two minutes per hole versus five minutes or more using a jig router hole jig in. One important thing to remember is to use a sacrificial piece of material under the circle material to prevent chewing up the workbench.

The jig produces perfect circles with nice clean edges. The jig worked just fine but I did notice that the PVC material had a pronounced bow along its length.

If I were to build another one I would probably use stiffer material such as Baltic birch plywood or phenolic sheet material.

Jun 01,  · How to Make a DIY Circle Jig: Step 1: Remove the router footplate. Jenn Largesse. To get started, remove the battery (or unplug) the router. Unscrew the screws that hold the Step 2: Trace the footplate onto a board. Jenn Largesse. Trace the holes onto one end of a long, thin board like a. Remove the baseplate from your router, and position it centered on the line you drew, and 1/2" away from one end of the base. Use a pencil to mark the screw mounting holes, the center hole, and trace around the outside diameter. Make a mark on the center line one inch away from the outer edge of . Apr 06,  · This Router circle jig is very easy to operate. Start by Router Hole Jig Treatment connecting the jig to the router. Slide the connection piece behind the clamping bolt and tighten it. Take your workpiece and determine the middle on your workpiece. Mark this center point with a pencil so that it is clearly visible. Apply double-sided tape to the bottom of the third disc.

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