05DEC2021
I cut out the Rear Spar Attachment Bracket with the dremel and cleaned it up with a file and some sandpaper.
Rear Spar Attachment Bracket - Cut & Filed
I also primed mating surfaces on a few parts. Before priming, I prepped the aluminum by washing with soapy water, scuffing with a scotch brite pad, and degreasing with acetone. I decided to use a two part epoxy primer, which I applied with an air brush. (I'm using PPG Shop-Line JP371 primer white & JH3770 hardener)
I haven't worked with epoxy primer or an air brush before and I got a few runs of a couple of pieces, so I'll need to sand those down and touch up next time, but overall they came out pretty good.
Priming parts with air brush
L-angles primed
Build Time: 5 hours 5 minutes