The brace to be shaped and sanded:
Once arm tack had set for 2 mins I risked offering up the brace to assess for fit. It required a curve along length and the 90 deg angle reducing to the match form of specs. I used a tealight to warm and then press(timate!) to suit
Offered up:
Not so bad. So filed and formed a little more. Before mixing another batch of epoxy and affixing the brace.
Noticed the arm was moving inboard as the cure was taking so I gently wedged it in place as precisely as possible by opening SAK/scissors and wedging to fit. Luckily this seemed to work really well as a precise ‘expander’ brace. Also used a small hobby spring-clamp to hold my new plastic brace against the arm
Then I had to go and cook, so will leave it to set for 2 hours and have a gander later
Fingers crossed!
Epoxy used: ‘ Bondit Monster Mix’ £2.99, because it was all they had except for Gorilla Glue at twice the price.