I use a lot of photopolymer resin for anything from filling holes in models to attaching pins to the backs of badges, and since the volume has grown I decided it was time to make a proper curing chamber. Also I decided to share it on here for all of you resin printing/resin art fans who may find it useful. It's designed to be printed in silk-finish PLA in white or chrome silver, although if you have a better reflective surface it can be printed in that instead. The whole idea, of course, is to make the chamber as reflective as possible so it cures the resin from all angles as much as possible. The tray is optional, but you can load it up with smaller pieces and cure them all at once. The chamber comes out at 130mm wide so you'll have plenty of room to cure larger items/higher volumes.
The chamber consists of a smooth base, a removable tray, a left- and right-hand wall, a slotted back wall and a frame which slots onto all of them. I've oriented the walls on the file so that the inner side is upwards, this should enable you to sand and polish the walls to the maximum reflectiveness. I then use two resin nail polish curing lamps; one leg is unfolded and inserted into the slot in the rear wall and the other end is kept folded to rest on the frame. You can secure it with a sticky pad if you don't think you're going to be moving it. Then you're all ready to irradiate!