Larger Minimalist Key Organizer

An enlarged version of the Minimalist Key Organizer by revere521. I really liked his model but wanted to fit my keys better including a car key. I kept the fitment of the M3 nut because it was excellent, and noticed that m3 bolt heads fit nicely in the space for the nut, so I only modeled a version for the nut (the same model can be used for both sides, with one side being a mirror of the other). 

Printing

Before printing, mirror the model so that you have one for each side (nuts will go in one side, and bolts in the other, but the geometry is the same -- they just have to be mirrored).

Hardware

It is designed for M3 nuts and M3 bolts (and M3 washers are recommended). I used M3x18 screws and got 4 normal keys with washers on each side (or 2 keys and one thicker key, your mileage may vary). 

I highly recommend installing washers between the keys as it makes sliding them much smoother (the keys don't stick together as much), especially if some of your keys are bent. You could probably try to 3D print spacers but I am not sure how they would stand up to time.

Note: if you post a make, please try to obscure your keys in some way for privacy reasons and to avoid people copying/spoofing them. I do not take any responsibility for your makes.

I made it longer and wider, and removed the need for multiple files (one file can be used for both the bolt and nut sides, one of the two prints just needs to be mirrored before printing).