What is a Gridfinity bin generator?
Gridfinity is an open, modular storage system created by Zack Freedman, built around a 42 × 42 mm grid and 7 mm height units. Tucked is a photo-based Gridfinity bin generator for iPhone: it traces an object’s outline and builds a bin with a matching pocket. You can adjust the clearance, pocket depth and bin dimensions before exporting an STL.
Why start with a photo
Scissors, utility knives and other irregular tools rarely fit neatly into a rectangular compartment. Photograph the tool from above on A4 or US Letter paper. Tucked uses the paper as a scale reference and traces the tool’s outline, saving you from drawing the pocket by hand. Review and edit the outline, then add clearance so the tool is easy to lift out. The result is a flat-bottomed pocket shaped for that tool.
Grid units, height and fit
Choose how many grid units the bin covers, then set pocket depth, overall height and clearance. Clearance starts at 0.40 mm, which suits a well-tuned printer; add a little if your prints run tight. Need a row of identical pockets for bits, batteries or markers? Switch to By dimensions, pick a pocket shape, size, rows and columns — no photo needed, and those models are free.
Printing your bins
Pockets are cut straight down with a flat floor, so bins print without supports. PLA or PETG at 0.2 mm layers is a good default. Print one bin first, check the fit, then batch the rest of the drawer. Because every footprint is a whole number of grid units, a new bin always sits flush next to the ones you already have, wherever they came from.