Files available on Thangs.com so that you can build your own.
Seat belt buckles have a pretty satisfying mechanism, but it’s not a great idea to play with them on the road! Now you can 3D print your own fidget and desk toy to play with anytime that you want. The design features a double action mechanism for locking and unlocking the tongue in place as well as ejecting it. It’s 100% 3D printed with no other hardware required. Featuring 20 plus different tongue styles, you can rep your ride!
Made up of just 8 parts (and one of those is just a small piece of filament), it takes about 4-5 hours to print and only a minute or so to assemble. I printed all of my bits and pieces in 3DFillies PLA+ filament. The mechanism is based on an older seat belt buckle design because modern seat belts are far too complicated to replicate as a simple 3D printed device (particularly without using hardware). Two very basic spring designs are used to provide pressure on the latch mechanism and to eject the tongue.
Quite a few suggested that a functional use for the mechanism could be in the form of a key ring and wall mounted key holder. So I changed things up a bit and created one that holds between 1 and 4 bunches of keys and with 3 different key ring designs. You can find the files for that one over on Thangs.com
