Had a last minute request from a friend that wants to use his camera during the eclipse. This holder fits on the 40mm lens tube of his camera and holds a 50mm disc of solar filter material. The retainer is a friction fit so the filter can be replaced for the next eclipse (in about 7 years). The two pegs sticking out the front of the holder were just in case he got the measurement a little off. They'd allow a rubber band to hold the holder in place. Turned out they weren't needed.
I used rafts for both pieces and supports on the holder itself. Layer height is ,1, walls are ,8, nozzle is ,4, nozzle temp is 215. Fill is 50%.