Box with dividers
A box that holds exactly what you need. Set the length, width and height, add dividers in both directions for a removable grid, and choose a lid that lifts off or no lid at all. The teeth press-fit, so it goes together without clamps.
Free
Summary
Parts
Cutting sheets
Assembly
Questions
Are the dividers fixed?
No. They cross each other and sit loose in the box, so you can lift the whole grid out. Set the number of dividers to zero for an open box.
What material and thickness should I use?
Use 1/8" (3 mm) birch plywood, basswood plywood or MDF. Measure the real thickness with calipers and enter it under Material, laser and sheet, because the joints are calculated from it.
Which software opens the files?
The SVG opens in LightBurn, xTool Creative Space, Glowforge, Inkscape and Illustrator. The DXF opens in most CAD and CAM programs. The sizes are real, so nothing needs scaling.