Circle Jig: Part 1

I've been avoiding this for quite some time but it's now necessary for me to build a circle cutting jig for my router. Tonight I got about 1/2 way finished with it. I am trying to make something similar to what mountain over at BYOAC made.

The first thing I did was lay out the pattern I thought would work.

Then using a combination of my jigsaw and router with flush cutting bit and a straight edge I cut out the shape. Finally, I cut out a second piece about half the size using my pattern cutting bit.

This last pic shows how the two pieces will fit together.

I am going to add a block with a pin sticking out which will slide up and down along the center groove I cut out. The smaller piece will also have a groove cut out but just wide enough for the pin to move up and down. The block will also have a knob on it to tighten the pin into place. The router goes on the circular end with the bit fitting through the center hole. The entire thing will pivot on the pin.

I'm thinking I'll also have to build a makeshift router table at some point too. I'll probably post details of that as well...