Gridfinity is great, especially for items that you leave out for easy access. But what about items that you need to put away, or carry to a work area?

What you need is a set of Gridfinity Storage and Carrying trays. This project is a parameterized Fusion 360 design.

Features -Parameterized dimensions. -Configurable number of cells wide and long. -Ability to include or exclude the grid rims. -Ability to include the Magnet pockets, or have a flat bottom, or (innovation!) alignment bumps that fit into the holes on the underside of Gridfinity bins. -Configurable outer wall height and floor thickness. -Configurable margin between the cell and outer wall. -Configurable Chamfers to allow stacking the trays.

Alignment Bumps / Magnet Pockets -For a Flat grid cell floor, set AlignmentBumpHeight to 0. Then the AlignmentBumpDiameter doesn't matter, although you can't set it to zero. -For a Magnet Pocket, use a negative value for AlignmentBumpHeight (-2mm works for the standard 6x2mm magnets). AlignmentBumpDiameter should be around 6.25mm. Also, make sure your FloorThickness is larger than the AlignmentBumpHeight. -For raised Alignment Bumps, use a positive value. 1mm to 2mm works. I find that an AlignmentBumpDiameter of 5.5mm to 5.75mm seems to work best. Test to see how your bins fit, in case your printer prints them a little oversized.

Stacking Chamfer -This parameter causes a chamfer to be cut under the outer rim of the bottom of the tray, and raised on the outside rim of the top of the tray. This allows trays to stack with a little bit of stability. It's not like the interlocking of Gridfinity bins, but it's enough to keep them from falling all over the place. -You cannot set this parameter to zero. The minimum is 0.1mm, otherwise the sweeps and extrudes break. I find that 1mm works ok, but a larger value might be a little better.

Outer Walls -The measurement of WallHeight is from the bottom edge of the tray. -Setting a small WallHeight, WallThickness, and WallMargin would essentially create a baseplate. -The WallMargin pushes the walls out from the outside edge of the grids. This could be useful if your bins do not have straight sides, or are somehow oversized. This setting cannot be 0 (again, that breaks the sweep), but a minimum of 0.1mm works fine.

I've included a limited selection of tray sizes as samples.