<May 1, 2010>
Seat Backs - Day 3
Back at the seats today.
I cut and drilled the section hinges for the seat brace, using one as a guide to drill the other.
With the seat back drilled, I clamped the and drilled hinge using the seat back as a guide. The plans specify a dimension from the top of the seat, but I was off maybe 1/8” so I ignored it and centered the hinge along the rivets at each end. It’s a bit confusing to describe, but it made sense and worked perfectly.
Previously I had spaced out the rivets for the F-537C Angles, so I removed it from its position along the top of the seat and clamped it in place along the where the hinge will go and used it as a drilling guide for the seat.
Test fit, all is good.
With the braces now fabricated, I enlarged all the holes in both seats to #30.