Brief Description: Machined wing center bolt spacer
Attached the wings to the airplane. Measured the gap between the spars and the center mounting tubing in the top of the cockpit. Used my 12” disk sander to sand down the bolt spacer to the measured size. Test fit by sliding wings far enough apart to slip in the spacer, then re-attached wings and checked fit. It was a little tight so I removed the spacer and sanded it a little more.