Seat Back Dimensional Adjustment

The photos of the seat back preliminary setup didn't easily show it, but the panels didn't quite line up, and there was a gap of about 0.25" between the top of the seat back panel and the rest of the structure. There was also a gap between the rear two panels. They would not align closely enough to match the triangular top piece.

I ended up taking 0.25 inches off the bottoms of the four seat side panels with the belt sander, and sanding down the angled edge where the back two panels meet. This was quick work with the bench belt sander.

This now allows the top of the seat back panel to rest against the top triangular piece for some additional back support, and all the pieces now meet with reasonably flush edges.

I took some pictures of the seat pieced together, but not yet glued.

I think I can glue the entire seat back together in one go, using thickened resin.


I haven't figured out a good way to clamp it together. The paint can technique seems to be OK in holding the seat back and sides in place, but the back two pieces don't comply - in particular at the top. The top edges like to skew inward or outward at the least provocation.

Stitching it might be a solution, but there would likely still be some play.

Adding a slightly smaller triangular plate to the inside bottom of the top triangle piece is a standard woodworking trick that could solve this. I just might give that a try.

Fitting and refitting the panels, and trying different ways to set it up for gluing took about an hour.