FM12 Gas Mask Lens Caps

cults3d

Spent a few minutes designing up some caps to cover/protect the lenses of my FM12 gas mask. I've created two versions, one that blacks everything out and one with pepper-pot holes. In practice, I've found that I need shave one of the two retaining tabs on the inside of the caps or else it's a royal pain in the butt to take the caps off when you don't want them on the mask any more and I'm too lazy to refactor the model without them. On my printer, with ABS, I've found that I need to bump the size by .5% to account for shrinkage to get a good, snug fit with the caps. I also finished them off with a couple coats of Rustoleum rubberized undercoating to give them a look and texture that's different than just being FDM printed parts.