I am printing some Sith trooper armor for my 12-y.o. I scaled down the adult-sized STLs to about 80%, and that seems to be working just fine in terms of length.
However, he's a bit of a string-bean at the moment, and his arms are a little thin for the scaled-down armor in terms of width - notably the forearms and biceps. I haven't printed the shins/thighs yet, but I am assuming I will have the same issue.
I am guessing the obvious solution is to buy foam of some sort, and stuff it into the pieces so that they "hug" his arms and don't slide around/off. But I don't have a lot of time for experimentation on what foam to use, the best way to cut/install it, etc. I am guessing that there is a better process than "just stuff some batting in there."
My hope is that there is a tutorial out there somewhere (or at least, a part of a larger armor tutorial) specifically taking about armor and skinny arms, but my Google searches must suck because I'm not finding anything on-point.
I'd be grateful if someone would be kind enough to point me in the right direction.
Please and thank you.