This is a portable rack for storing and transporting typical plastic part storage boxes available cheaply anywhere. The ones I used can be found here: https://smile.amazon.com/DUOFIRE-Organizer-Adjustable-Compartment-Accessories/dp/B0822FK3ZY/ref=sr_1_23?dchild=1&keywords=parts%2Bbox&qid=1624296096&sr=8-23&th=1&tag=thingiverse09-20
The system is modular. Print one base, one lid, and as many trays as you need. Each piece connects to the one below it with 7 snap-in clips, so take that into account as you're printing them. Feet printed in TPU ensure your furniture won't get scratched. There are small articulated lips on the trays to discourage the storage boxes from sliding out while you're carrying it around.
The pins that hold the handle to the lid are problematic. You don't want too tight a fit, or the handle won't spin, and too loose and the pins won't stay in place. You may need to scale them up or down depending on your printer's tolerances. I printed them scaled down a bit and held them in place with a couple of dabs of super glue. They're really quick to print so you can experiment to dial in the fit.
Printing:
The trays need no supports if your printer is dialed-in. The two exceptions are the base which has inset cutouts for the feet, and the TPU feet which need a tiny bit of support for the hooks. The lid should print fine without supports if your printer is well-tuned.
If you need to print a lot of clips like I did (49 in total) do yourself a favor and use a raft. There isn't a lot of surface area when you stand it up on its side. It's a bit more work at the end to clean them up, but you won't have parts sliding off the bed several hours into a print.
For one build you will need to print:
1 Lid 1 Handle 2 Pins 1 Base 4 Feet (Foots?) Var Trays desired 7 Clips per tray, lid, or base
Future versions:
I've already had requests for a lid with incorporated storage inside like some commercial parts racks on the market. That's probably what I'll work on next if there's enough interest.
Print Settings Printer: Artillery Sidewinder X4
Rafts: Yes
Supports: Yes
Resolution: 200
Infill: 15
Filament brand: Various
Filament color: (KVP) Neon Orange PLA / (ProtoPasta) Heartthrob Red HTPLA / (Gizmo Dorks) Black TPU
Filament material: PLA / TPU