Customizable Harbor Freight Small Parts Storage Bin Trays

thingiverse

When these Harbor Freight 20 Bin Medium Portable Parts Storage Cases go on sale, you can get them for less than $5. This is a great deal for injection molded polypropylene cases, but the bin sizes aren't quite right for electronics parts, printer parts, and other small items. These trays will work well with: * [19 Bin Portable Parts Storage Case: item 93928](https://www.harborfreight.com/tool-storage/part-storage/19-bin-portable-parts-storage-case-93928.html) * [20 Bin Medium Portable Parts Storage Case: item 62778](https://www.harborfreight.com/tool-storage/part-storage/20-bin-medium-portable-parts-storage-case-62778.html) The included STLs are the sizes I needed and used. Some of these stack on top of each other to pack similar parts in layers within the box. They are optimized for 0.4mm nozzles printing at a layer height of 0.1mm. Customizer Support Using the 'Open in Customizer' link above, you can change the parameters in an interactive way and get the perfect STL for what you need. OpenSCAD Module Parameters * Number of 'units' it occupies in the storage case (tray size) * Number of 'buckets' of sub-divisions inside the tray (compartment grid in tray) * Upper Lip size (more rigid top) * Wall thickness (To optimize for printing, avoiding gap fills, etc.) * Is Top: Defines if a box is the 'top' box in a stack of boxes. Default is true. The OpenSCAD file includes some guidelines on ideal wall_thicknesses for some common nozzle / layer combos. Backstory I was inspired by other projects to get organized in my hobby spaces. After seeing: * [This thing](https://www.thingiverse.com/thing:569241) * and [This Thing](https://www.thingiverse.com/thing:671740) After trying out the other things, I came to the following conclusions: * I wanted to customize the sizes and sub-divisions. * I wanted to optimize the wall thickness to make them print faster / better. * I wanted to print trays that were less high, stacked nicely, and let me pack smaller components in easier to manage bins and save wasted space in the storage case. I'm not a solidworks guy, so I took some time to put together an OpenSCAD file and started generating trays. Here they are. Hope it helps you out!