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3DPrinting
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Well I could do a lot of things, but one of my hobbies is to model stuff that prints out all ready to go as much as possible. This design uses small metal hinge pins only because printed-in-place functional hinges would be huge.
But otherwise I like that it's only 3 parts that print quick, don't require any rework, and still open up to accept the lenses, orient the lenses (I have astigmatism so my lenses need to be rotated exactly right, and if you look carefully on the inside of the hinge, the V groove is interrupted to match a notch in the lens' bevel, which also contributes to lock the rim closed) and everything holds together smartly with only those two pins.
So yeah, I could do extra work to make them look nicer, but I'm kind of proud to display how I managed to make them look straight out of the printer.
Not to mention, I'm lazy too 🙂
And you know what? That’s a great design philosophy.
Simple and repeatable. Besides you don’t want to risk more expensive lenses with more breakable parts (so the metal hinges make sense)
Lazy wouldn’t have made them so I’d call it efficient use of your time.