Gridfinity Drawer Spacers

Before You Slice

Check Your Bed

Every pre-arranged plate needs a 260 mm bed. The six-square spacer is 252 mm long, so the 3MF plates will not fit a 220 or 235 mm bed. On a smaller printer, use the individual STLs for the lengths your bed can take.

Before You Print

Measure The Gap

Build your grid to the largest whole number of 42 mm squares that fits, push it into one corner of the drawer, and measure the two gaps left along the open sides.

Corner the grid rather than centering it. Centered, you need four spacers in four different sizes. Cornered, you need two.

Round down, always. A spacer wider than the gap will not go in. Worst case you leave about a millimeter, which is inside the error of measuring a drawer with a tape.

An example: a 14-square row is 588 mm and the drawer this was built for is 605 mm. A 15 down one side and a 1.2 down the other close that 17 mm, and the grid stops moving.

What Makes It Work

The Grid Stops Moving

One constant cross-section, cut to a width and a length. Everything below is about making that simple strip land flush, stay put and be easy to pick out of a bin.

The Number Is The Gap, Not The Part

A 40 fills a 40 mm gap. It takes up 50 mm of drawer, because the retaining lip tucks under your baseplate rather than sitting in the gap — so measure the empty space and print that number. The body is 5.00 mm tall and the 0.4 mm lip slides under a 4.65 mm baseplate, so the spacer lands flush and stays captive. Thicker magnet or screw baseplates will leave it sitting low.

12 Widths, 6 Lengths

1.2, 2.4, 3.6, 4.8, 5, 10, 15, 20, 25, 30, 35 and 40 mm, each in one through six grid squares (42 to 252 mm). The 1.2 / 2.4 / 3.6 / 4.8 trim widths divide evenly on both 0.4 and 0.6 mm nozzles, so the narrow pieces print as whole extrusion lines instead of a wall the slicer has to fudge.

The Size Is Engraved On It

Every piece carries its own width on the outer face, always to one decimal. A printed 5.0 and a printed 4.8 are 0.2 mm apart and identical in the hand — “50” and “48” are not.

One Part, All Four Edges

The section is symmetrical, so a half turn puts the lip on the opposite side and a quarter turn serves the front and back — there are no mirrored files to sort through. Need more than 40 mm on one side? Set two side by side: the inner lip goes under the plate, and the outer piece is captive between it and the drawer wall.

Print Settings

Slice It Right

These are the settings the reference set was printed with, on a Creality Hi with a 0.4 mm nozzle. Each 3MF carries the full profile — open it in Creality Print or any slicer that reads 3MF projects and it is ready to go.

The whole set is 25 h 28 m and 481.08 g across the 12 plates, 161.29 m of filament, roughly $14.44 in material. One plate runs from 42 minutes for the thinnest trim width to 3 h 43 m for the longest.

Print only the widths your drawer actually needs. Shipping every size is the point; printing every size is not.

Supports

None

Layer Height

0.10 mm

Walls

2

Top / Bottom

4 / 3

Infill

10% Gyroid

Brim

None

Material

PLA · 220 °C / 60 °C

The Parts

1.2–40 wide · 42–252 long · 5.0 mm tall