Small parts divider bins for Harbor Freight Large Box Organizer (#56578)

Harbor Freight sells a Large Water-Resistant Storage Container Organizer (#56578) that is water proof, inexpensive, and generally works well to store large nuts and bolts. Most of the hardware I use in 3D printing and maker projects is small, and typically requires more bins of a smaller size.

This project contains a set of divider boxes (bins) that precisely fit the spaces inside the HFT Container Organizer. The bins divide each original compartment vertically into two, with an added tab at the top for easy removal and reinsertion.

Instructions

• Fully assemble the HFT Large box. All original divider tabs must be fully inserted. The tabs are connected to each other by a small plastic strap. Make sure these are fully removed (cut them with a pair of precision cutters), or the tabs won't fully sit in the box. When properly assembled, the tabs will sit flush with the bottom. Also note that the front row tabs are different (they're marked as “front” on the plastic).
• Print the divider bins in this project. I've used PLA/PLA+ in various colors at 0.28 layer height with great results. If you have a 0.6 nozzle, you can possibly get away with even higher layer heights (this will print faster!) This project requires no supports to print.
• There are three types of divider bins:
  • Top Left Bottom Right: use on top left or bottom right spaces.
  • Top Right Bottom left: use on top right or bottom left spaces.
  • Center/Edge: use on all other positions.
• The bins themselves contain a tab at the center, which makes it easier to remove and re-insert them. This tab is not symmetric and you'll notice that one side has a small recess. This recess must point to the front size of the box if the bin is installed in the front row or the box won't close and possibly damage the bin. They can point front or back in the middle/back rows, but the OCD in me would be asleep on the job if I didn't recommend you to always point the notch forward. :)

Caveats

• Harbor Freight has many organizer boxes and this particular model has three sizes (small, medium, and large). This project only works for the large box. Check the link above or search their site directly for product ID 56578.
• The box has a somewhat strange design where plastic strips on the lid of the box partially close the gap between the original compartment walls and the lid. I could have designed the bins with higher walls to make it impossible for small contents to escape the bins, but this would (possibly) require different bins for each of the rows, making the project way more complicated. In light of that, I consider this as a storage option, not a transport option. Turning the box upside down and shaking it may move parts from one bin to another. This was also a problem in the original design.

Your comments, remixes and makes are always welcome.