This storage box was designed to address a common frustration: most available models required complex assembly with hinges, screws, or other fasteners. I wanted a simple, functional box that works right off the print bed—no additional parts or assembly needed.
The snap-fit lid provides secure closure while remaining easy to open. The design is straightforward and reliable, perfect for organizing small parts, tools, or hobby supplies. Available in multiple sizes to suit different storage needs.
Download the STL files from Printables (link below). The model is designed to print without supports, making it quick and easy to prepare. Import the files into your slicer software (PrusaSlicer, Cura, etc.).
Recommended settings:
Material: PETG (PLA also works)
Perimeters: 4 walls
Infill: 30%
Layer height: 0.2 mm
Supports: None required
Print time: ~13 hours (largest box + lid)
The design prints completely support-free, saving material and post-processing time. The generous infill and wall count provide excellent strength for everyday use.
Remove the print from the bed and test the lid fit. The snap-fit mechanism should work immediately without any adjustments. If the lid is too tight, you can lightly sand the contact surfaces or scale the lid to 100.2% in your slicer.
Designing without hinges or fasteners meant focusing on the fundamentals: proper tolerances for the snap-fit mechanism and wall thickness for durability. Sometimes the simplest solution is the best one.
By carefully orienting features and avoiding overhangs, the entire model prints without supports. This significantly reduces print time and material waste while maintaining structural integrity.
Initial prints showed that tolerances varied significantly between different printers and materials. Some lids were impossible to remove, while others fell off easily.
Added sizing options in the Printables files and provided scaling recommendations in the description. Users can test with a small prototype first, then scale the lid between 99.5% and 100.5% to achieve the perfect fit for their setup.