Canon 200mm f1.8 Lens Cap

thingiverse

This is a custom lens cap designed for the Canon 200mm f1.8 lens. I made one after realizing my new lens didn't come with a protective cover, so I decided to create one myself using a 3D printer. You can directly print this design on your printer's bed without any issues, but adding a raft will make it easier to remove the printed cap from the bed once it's done. If you want to include support for the raised areas that feature the Canon logo on the front of the cap, use no more than 25% infill so it can be easily removed later. This design should scale up or down to fit other lenses as well, although I haven't tried printing it for any other models yet - some trial and error might be necessary to get it right.