Gridfinity drawer calculator
Enter your drawer's inside size and your printer bed. You get the grid that fits, the padding that locks it in place, and a tile plan, each tile a free STL.
Worked examples
| Drawer mm | Bed | Grid | Border X / Y mm | Tiles |
|---|---|---|---|---|
| 400 × 300 | 256 | 9 × 7 | 21 / 5 | 4: 5×4, 4×4, 5×3, 4×3 |
| 600 × 450 | 256 | 14 × 10 | 11 / 29 | 6: 5×5, 4×5 |
| 250 × 200 | 220 | 5 × 4 | 39 / 31 | 2: 3×4, 2×4 |
| 500 × 400 | 180 | 11 × 9 | 37 / 21 | 12: 3×3, 2×3 |
Questions
How do I measure my drawer?
Measure the flat inside floor, wall to wall, at the narrowest point (drawer slides and rounded corners often steal a few millimetres). Enter those numbers; the calculator keeps 0.5 mm of clearance on each side.
What happens to the leftover space?
Anything that is not a whole 42 mm cell becomes a solid border, split evenly between both sides, so the baseplate fills the drawer and cannot slide.
My drawer is bigger than my printer bed. Now what?
The calculator splits the grid into tiles that each fit your bed. Only the outside edges of the outer tiles get the border, so the tiles line up on the 42 mm grid.