I've trimmed and sanded the biceps.
One tip I picked up from other builders is to sand the the edges that will face each other under the cover strip. I laid a half sheet of sand paper on a flat surface to sand off the high spots and create an even edge.
Before gluing on the inner cover strip I sanded the B side of the strip and inside edge of the bicep. I don't know if this is necessary but I did it to give the glue a better surface to grip.
Glue and clamp
After the glue had set on the inner strips I brought the other half of the bicep together. The right bicep went together as planned but the left bicep had a surprising gap on one side.
After adjusting, clamping, taping, re-adjusting, clamping, taping and magnets. The gap did not want to go away.
I eventually realized it was the inner strip causing the gap.
So I peeled off the inner strip (thank you E6000) and re-adjusted the pieces, then they fit together much better. Anyone else run into this?
I glued the outer strip on and they looked how I expected.
At the top of each bicep there was an uneven end.
I debated what to do with these. Sand them off because no one would see them anyway? Or leave them be and regret every arm movement as they tear into my flesh?
I couldn't find any threads addressing this specifically but I did see a builder who used a hobby iron to fix the uneven ends of the forearm. So I bought a hobby Iron not knowing if this is really going to work or not. And by the way the hobby iron does not come with instructions for use on ABS plastic, so I practiced on a couple pieces of trim scraps before using it on the biceps.
After a little practice I got it to where I wanted it.
The finished biceps