FreeGrid Storage Grid Using Steel Squares And Magnetic Strips
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A cheaper alternative way to attach things to the FreeGrid storage grid - with steel squares and adhesive magnet strips
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After first looking into making some grid-based storage, I found that the cost of neodymium magnets quickly adds up. Sourcing magnets locally, the 8 magnets for one square would have cost ~2€, and a single drawer or shelf could end up costing upwards of 100€ just in magnets... So I designed an alternative solution that uses squares of thin sheet metal and strips of adhesive magnetic tape.
How it works:
Print one of these grid sections and the item you wish to attach. The item has to have a smooth and flat base for attaching the magnetic strip. For example, the bottom of the default FreeGrid box can be closed by padding a sketch of a square that covers all 4 holes
Using sheet metal shears, cut a roughly 44 mm square out of 0.5-0.7 mm sheet metal. It's better for the size to be accurate or undersized, otherwise it won't fit into the grid square. The metal has to be magnetic, and ideally it would also be protected from rusting, galvanized steel is easy to find and ticks both boxes
Flatten the square if necessary, and glue it into the grid with CA glue
Cut a square of magnetic strip and glue it to the item
Done
Files include 1x1 to 1x3, 2x2 and 3x3 grids. Other sizes can be made using the provided FreeCAD file.
Designed in FreeCAD, using the FreeGrid workbench for the base shape. The workbench can be installed from the addon manager.
NOT COMPATIBLE with gridfinity