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Date:  10-5-2009
Number of Hours:  1.00
Manual Reference:  
Brief Description:  Making a device to pop the ribs out of the jigs

When building the compression ribs early this summer, I got frustrated because I would get the rib half built and have to pop it out of the jig to complete it. And this needed to be done while the epoxy was still wet.

So the top and bottom cap strips of the compression ribs are twice as wide as the cap strips on the normal ribs... and they're bent... which means they wasnt to spring out of position... with a vengeance! So I would assemble a rib, pry it out of the jig, and then it would sproing apart.

I'm not known for my subtle reactions to situations like this. Take a deep breath... a solution needed to be found. And it was.

I went to my normal source, who once again made me go "Huh, why didn't I think of that?" Probably because it's not what I do for a living and this is my first plane, not my 75th! In case you couldn't guess, Bill Scheunemann was the man with the answers.

The solution is two-fold: get the rib out of the jig all at once rather than prying it out a piece at a time. Simple problem, simple solution. See picture 1. Remember how the rib jigs have 1/2 inch holes drilled in them? Well, I simply took a 3/4" piece of plywood, put it under the rib jig (without any bits of rib in place) and drilled through to the plywood. then I put 1/2" dia dowels, cut 1" long, into the plywood. Now, when the jig has a complete rib in it, I'll simply put the jig over the "popping out board" and the dowels will line up perfectly through the jig and press on the installed rib at all the critical joints. And it will pop out all at once. Simple, effective. I love it.
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The rib jig to the right of the Popping Board

The rib jig to the right of the Popping Board

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