The neighbor restores furniture and sells it at fairs. She picked up some ratty rattan chairs where the webbing was gone.

I said I could make her a chair seat to replace the webbbing. We settled on 1/2” thickness, I picked up some plywood and went to cut the seat at 14-7/8” diameter.

Thought I could get off easy by using the MilesCraft jig with a trim router. Nope. The jig maxes out at 12” circles. Even if you use the jig “incorrectly” by flipping the arm around to, you cannot make a 14-7/8” hole.

Out came the Shaper Origin.

My benches (both of them) are filled with crap right now. So I slapped a piece of 3/8” radiata ply on the ground, threw a piece of 3/4” ply on top of that, threw some rubber drawer liner atop that before finally throwing my material down.

I then grabbed a kneeler because I am old, and kneeling on the ground sucks.

I put the Shaper Tape on until the health indicator of the router stays in the black (not the red) while doing an air cut trial pass.

Then we get to cutting before the sun goes down on me. Had to get it done by Friday (yesterday; and I did this all yesterday) because neighbor wanted to sell the chairs at the market today.

I cut it down to 1/2” - 1/32” to create an onion skin at 0” offset to the desired diameter (14-7/8”).

Then for the last pass, still at 0” offset, I set depth to 1/2” + 1/32” to break through. I made sure I had the kneeler and my body weight on the circle when I did break through so it would not go anywhere. Also, before I plunged into the last pass, I made sure to move the rubber drawer liner under my material further back so it was not in the cut path.

Because I did not use any tape, nor any tabs to support the work through the final cut, retrieving the final part was as simple as standing up