Retainer / Flipper / Denture Case

thingiverse

This is a case designed to hold a dental flipper/retainer/dentures, but made to be as small as possible. I found that almost all similar products on the market to be far larger than necessary, making it impractical to carry them in your pocket. The case uses a pair of M3 bolts and captive hex nuts as a hinge, and a pair of magnets to keep it closed. Assembly notes: - you'll definitely want to use the captive nuts. Without them, one of the bolts will constantly try to back itself out over time, because the hinging action is effectively unscrewing it. - Take care to mark the polarity of the magnets before super gluing them into the recesses, and make sure that the polarity matches when flipped. If any of the 4 magnets has the wrong polarity, then the whole thing will have to be tossed, because it will try to repel the halves instead of keeping them closed. - The recesses for the magnets are a bit oversized because I thought I might need to double them up to get the necessary closing force, but as it turns out the closing force of a single magnet pair is far more than sufficient for the task, and strong enough to separate two magnets that were superglued together. All that to say any small pair of neodymium magnets should work