The numbers that do not move
Gridfinity works because everyone uses the same numbers. The ones below are constants in this tool rather than parameters — changing them makes something that no longer sits on anybody's baseplate.
Grid cell
42 mm
Height unit
7 mm
Clearance
0.5 mm
Foot height
4,75 mm
Foot profile
0,8 / 1,8 / 2,15
Stacking lip
1,9 / 1,8 / 0,7
What is not here yet
The reference tool this follows does more. The list below is plain, so you know before you try rather than after.
Magnet and screw holes
Needs mesh booleans. The geometry here is built as a swept profile precisely so watertightness is guaranteed; booleans go in when they can be guaranteed the same.
Dividers and compartments
A divider is a second body fused to the wall. Dropping it in without a real union produces non-manifold edges — exactly what the readout under the stage counts.
Label tabs and scoops
Same reason as dividers.
Cutouts from an STL
Importing a model and subtracting it from the bin. The import half already exists in the converter; the subtraction does not.
A deeper floor
The floor here sits on top of the foot. Real bins drop it lower and gain a few millimetres, but that needs the cavity to narrow along the foot chamfer.
Saving and sharing
Nothing is saved: this tool sends nothing to a server, so there is nothing for it to keep for you.
Gridfinity was created by Zack Freedman and released freely. This tool follows its numbers; whatever you print from it is yours. The converter and viewer are on the other free tools.