Foldable Swiss Army Style Key Holder

by carbonbased, published

Foldable Swiss Army Style Key Holder by carbonbased Apr 4, 2015
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8597Views 1517Downloads Found in Keychains


I have tried other Swiss Army style key holders / key rings on Thingiverse, and found that they all suffered from the same problem: it was difficult for me to actually get at the keys, and near impossible to do it with one hand.

My solution was to design one that folded in the middle to allow for easy access to the keys. Fold it one way to expose one set of keys, fold it the other way to expose the other set. You can even do it one-handed, which you will appreciate if the other hand is holding groceries.


The key holder consists of four identical parts. Print them with no support and a good amount of infill. Please see the side-view photo for the proper orientation. Use 3mm screws and nuts to hold it all together – button heads preferably. You may have to trim or grind the excess length of the screws after assembly. Make sure to pad out one side with washers if you have a different number of keys from one side to the next.

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what screws / hardware did you use?

From the instructions: "Use 3mm screws and nuts to hold it all together..."

Why aren't there all stl files showing?

The key holder is made from one part repeated four times.

Telmon, the Sketchup 8 source file is already posted, so if anyone wants to make a variant, they are welcome to.

If you can post the original, otherwise use Onshape...you should be able to import the STL then reverse engineer the design and tweak the dims.

I like the design, though a longer version would be nice. With my car and deadbolt key, the folding action doesn't really work.

Sorry it did not work out for you. I have my two car keys on a separate ring with the key fob because they are thick and bulky. This thing was therefore tuned to work with average house keys. You could try scaling it in one direction if you don't mind slightly oval screw holes.

I understand completely. It still works pretty well, I've found that I can get the folding to work by folding in the direction of the keys I want, the opposite as in your pictures.