Rollei 35 Lens Cap

Since the original lens cap was pretty loose on my model, I designed my own version that attaches magnetically. To be fair, it's not an extremely tight fit, but it's way better than before. Considering that I'm gentle with the camera anyway, it never fell off accidentally.

Additional Parts Required

You need 3 neodymium magnets with a diameter of 2mm and a height of 2mm. Technically, you can use the lens cap without magnets, but in that case it will probably fall off when you swing the camera around. To get the best fit, make sure the focus is set to infinity when you put the lens cap on. Why, you ask? Well, there are exactly three spots on the front ring of the lens that are magnetic (probably screws under the front cover). And these will be aligned with the magnets when you turn the focus ring to infinity.

Assembly

The holes are a press fit, so you just have to push the magnets in with the help of tweezers or pliers. If the magnets are too loose, I suggest using glue to prevent them from falling out.

Printer Settings

You can print this multicolored model with a single extruder. And that's how you do it:

• Print the logo and keep your heated bed on after the print so it keeps sticking to the bed
• Remove the skirt, but not the inner ring which is a part of the model!
• Change the filament
• Print the second file at the same position as the first one

If you have ABL: Make sure the placement of the model doesn't interfere with your probing points during homing and bed leveling!

• Layer Height - 0.12mm, 0.2mm for the first layer. This way, you get a detailed print and the logo is more visible (the logo would be kind of transparent with a very thin first layer)
• Material - I used Fillamentum PLA Rapunzel Silver for the logo and Prusament PLA Galaxy Black for the rest of the model.