Modular Tube Storage Rack

thingiverse

Everyone who tinkers with electronics knows the frustration of storage boxes with compartments that don't seal up to the bottom of the box, right? Small parts like resistors just roll under the "walls" and get all mixed up. I wanted something to organize resistors in enclosed compartments in a fun way - involving 3D printing. The actual containers here are clear plastic test tubes I purchased from Amazon, as shown in the link below. I've uploaded models for two versions of the tube holder: a single holder and a fiver. Both styles have connecting holes; simply print the "connector" model and assemble them together. The connecting holes are 10mm deep and need to be flush on the back. The knobs on the connector straps are 2mm high, with diameters d1=9.25 and d2=9. While they do pressure fit, I didn't adjust them to truly "lock." My intention was for them to provide stability for each other while lying in a shallow tool box. I suggest gluing them together permanently if you plan on carrying a box around or mounting this vertically on a workbench wall, pegboard, etc. The OpenSCAD file is also uploaded so you can create connectors that span more than two holders, make 3-packs, or any other configuration you like. Next step is to find or print a box where these will fit nicely. Link to tubes purchased from Amazon: https://a.co/42ZGUC7 Print Settings Printer: FlashForge Dreamer Rafts: No Supports: No Resolution: 0.3mm Infill: 15% Notes: I printed these on a fast setting, with 0.3mm layer height and only 15% infill. I used three outer shells for added strength.