Just sharing something I found when working on a part I made with Peopoly UV Green resin. I was trying to use heat-set metal inserts for more secure screw attachment points. Unfortunately, the resin never seems to melt with heat. Instead it burns.
The inserts are installed with a special soldering iron tip. The tip heats the metal insert which is supposed to melt the plastic and allow you to push the metal insert into the plastic.
They’re great for some plastics. Apparently not so great for the acrylic based stuff. Live and learn, I suppose.
Here’s the inserts I’m talking about: