Smart Key Holder

Are you tired of having a bulky keyring in your pocket? So was I, so I decided to tackle this problem, and I came up with this awesome solution!I present to you a compact key holder, that only weights 7 grams (!) and lets you have how many keys as you want in a neatly package!The scales are 3mm high, and you only need 2 M3 Screws (with countersunk head for a perfect fit) and Nuts to assemble it. It's done in a way that is easy to take all apart in order to add other keys or gadgets. (For ease of use, you can see the exact parts in the images)In the print profile you can find the two scales, as well as two spacers, that will be useful in case that you have an odd number of keysFor the length of the M3 screws: Each key is approximately 2mm thick. To determine the screw length, start with a base length of 6mm and add 2mm for each layer of keys. For example: use an 8mm screw for one layer (6mm + 2mm), a 10mm screw for two layers (6mm + 2×2mm), and so on.I recommend printing it with PET