Quad Fidget Gears

I've enjoyed the challenge of trying to print kasinatorhh's fidget gears and I thought to myself, wouldn't these be even cooler if there were four sets of gears instead of two? Double the gears = double the fun!
Along the way I also made one little enhancement to the original, I enlarged the axle holes so that I could use cut pieces of 1.75mm filament for the axles. This means there's no need to print those tiny axles; just snip off a few lengths of 1.75mm filament. You want them to be roughly 13.5mm long but I'm sure you have calipers and can figure that out.

Instructions:
Print out 2 of each gear model (for a total of 8 gears) and one of each of the holders.
The more precise the better. I like to use a 0.2mm nozzle with super thin layer lines to really kick up the detail and the smoothness.
Cut 4 lengths of filament to use as axles so that they're short enough to fit entirely within the casing and not interfere with the outer gears.
Getting these to spin will almost certainly require some post processing. Take the time to make sure that all your edges are sanded smooth and that the gears mesh properly. For mine, I assembled just the larger gears first and manipulated them until they spun without too much effort. Only then did I try to introduce the smaller inner gears.
Each of the outer gears has one spot where the mesh is enlarged just a bit. It can be hard to spot but you should be able to find it without too much trouble. If you move that hole over the axle hole it will give you more then enough clearance to slip the axle through the outer gear and push it into place. Be careful not to push it in too far or it might interfere with the rotation of the outer gear.
Once the whole thing is assembled you may need to manipulated it for a while before all of the mating surfaces smooth each other out enough for it to really rotate smoothly. Be patient and with enough precision and care you'll get there eventually.
See kasinatorhh's original design for more tips if you need them.

One other little tip: If you print the holders upside down (flat-ish side to the build plate) you shouldn't need any supports at all.