There are a lot of 3D printed accessories out there for photography and filmmaking. One of the more popular items that people print are lens caps. There are quite a lot of different lens cap designs out there, but most of them have one big problem. They’re entirely 3D printed, including any spring mechanism to lock them onto your lens.
Depending on the material you print with, such as ABS, PETG or perhaps Nylon, this might never be a problem. But if you print with the usual PLA, this can become very weak over time as it’s used. YouTube channel DSLR CNC DIY has a solution, though, with a rugged lens cap design that uses a binder clip arm as a spring for maximum longevity.
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