So I wanted a small, and thin friction hing for another project, and I couldn’t find the metal ones that they use for the iPad’s Magic Keyboard case. So I design my own the parts I had on my desk.

The smallest nut that I had was 4mm wide which really limited how thick the design can be. The result is this

It folds flat at measure at a maximum thickness of about 10mm

It works a lot better than I thought it would, especially since this is my first prototype print. Need to figure out some things, like to stiffen the arms and to prevent/reduce twisting.

But as a basis to start from this works nicely. I think if I add a TPU washer on the back end, I might be able to get it stiffer and more consistent feeling. But I’ll do that at another time.

  • the16bitgamer@lemmy.worldOP
    link
    fedilink
    English
    arrow-up
    2
    ·
    5 months ago

    I could achieve the same effect by making the arms thicker. Though I am thinking of printing the screw caps in TPU to see if I can make it stiffer that way.

    Trying to keep the parts the same as the main thing this belongs too. M2 threaded inserts and 5mm screws. So not a lot of flexibility when it comes to thickness. That said, as a MK2 I’d probably make it 2mm thick rather than 1.2mm since that’s my goto size for stiffness.

    • SzethFriendOfNimi@lemmy.world
      link
      fedilink
      English
      arrow-up
      2
      ·
      4 months ago

      What about a dab of hot glue as a kind of medium between the head of a bolt/screw and the plastic it’s in?

      This way you get some of the “grip” from a malleable material that’s also pretty easy to get ahold of for most people.