bigovereasy

Oreo Lens Cap 📷🍪

Added 2025-07-05 14:55:54 +0000 UTC

The model I've wanted to make for a long time is a 58mm lens cap shaped like an Oreo cookie 🍪.

I once made a commemorative eclipse magnet in 2024. It wasn't by chance that I set the outer diameter of that design to 60mm—it was meant for the lens cap 😉

As you can see, I went through quite a few iterations. In the first one, I immediately abandoned the convex surface like the original Oreo—mine is recessed.

I decided this would be the bottom side, and printing it flat on the bed would give better surface quality.

To prevent the compressed edges from falling out of the cap, I made a tapered gap.

The spring’s length allows insertion from the far side.

To reduce friction between the spring and the cap, I added a slight lift. The spring itself also has a recess to minimize friction and jamming. In the final version, the spring is stiff enough to hold the cap securely on the lens.
I also made a clip that attaches to a strap and holds the lens cap.

The ring acts as a lens emulator, but I’ll leave it as an optional part—you can attach two caps on opposite sides, making it a full Oreo cookie.