Workshop: Bowlback Rib Repair

Yes, seriously, you can do this. It's a heck of a lot more practical than making a jig that'll slip anyway.

Open up the loose seam or crack, squirt some glue in, wipe off, dry off the surface, and then press together with one hand while with the other hand plant one side of the tape on one side of the crack and then "pull" that tape (so it's under tension) while smoothing it down over to the other side. This pulls the joint together for the set time (around 30-45 minutes for Titebond) and you're good to go the next day.

The only trick is to make sure that you align each bit of the seam getting repaired as you go to make sure it's lining up with the rest of the surface.