Gridfinity on the laser cutter: faster than printing it

Your printer's been chewing on Gridfinity baseplates for two hours. You've got one drawer's worth to show for it.

There's a faster way. Run Gridfinity on the laser cutter instead, and the same base drops off the bed in minutes — flat, stiff, and cheaper in material. The grid doesn't care whether it was printed or cut. It just cares that it's 42mm on a side.

Here's why plywood wins for the bases, and how to make a full system without downloading a single STL.

What Gridfinity actually is

Gridfinity is an open, modular workshop-organization standard: a repeating 42×42mm grid of pockets that bins snap into. Design it once, and every drawer, bin, and tray in your shop speaks the same language. It came out of Zack Freedman's Gridfinity system, and the community has run wild with it since.

Two parts to any Gridfinity setup:

• The baseplate — the grid of sockets that lines your drawer.
• The bins — the little boxes that sit in the sockets, one or more cells each.

The whole point is that the dimensions are fixed. A cell is a cell. So how you fabricate it is wide open — print it, CNC it, or cut it flat on a laser. That last one is the one people sleep on.

Why the laser wins for baseplates

A Gridfinity baseplate is basically a flat sheet with a grid of pockets. That is exactly the shape a laser cutter is best at — flat, 2D, repeated geometry. Stack the reasons up:

• Speed. This is the headline. On a 10W diode laser, a 2×2 base cuts in about 9 minutes; the same base 3D prints in around 53 minutes (theihdes' laser-cut Gridfinity build has the numbers). Scale that to a whole tool chest and printing becomes an overnight job. Cutting is a coffee break.
• Cost. A sheet of 3mm plywood is a few bucks and yields a lot of grid. Filament for the same coverage costs more and takes the machine hostage while it prints.
• Strength. Plywood baseplates don't flex or creep under a drawer full of steel tooling the way a sparse-infill print can. A bench that holds sockets and drivers wants stiffness.
• Looks. Cut birch ply and a drawer of organized tools looks like a shop, not a toy bin.

3D printing still wins for the bins if you want fancy scoops, label tabs, or magnet pockets. But for the flat grid that lines your drawer? Cut it.

The two-layer laser-cut base

The trick to a laser-cut Gridfinity base is that you fake the 3D pockets with stacked flat layers — no printer needed for depth.

1. Grid layer. Cut 3mm plywood with the full grid of 42mm openings. This is the top face your bins drop into.
2. Floor layer. A solid sheet glued underneath to close the bottoms of the pockets.
3. Optional magnet layer. A thin 1.5mm sheet with pockets for 6×2mm magnets, if you want bins to stay put in a drawer that gets yanked.

Glue the stack, clamp it flat, done. You get real socket depth out of nothing but flat cuts. The Instructables Gridfinity-compatible builds walk through the layer-stack idea if you want pictures.

Depth on a laser comes from stacking layers, not from Z height. Two or three flat cuts and glue give you a pocket a bin sits in.

Skip the STL hunt — generate the base

Here's where most guides send you: go download a DXF off Thingiverse, hope it's the size you need, and wrestle it into your cutter's software. Fine, until your drawer isn't an even number of cells wide.

Better to generate it to your drawer. The Bad Ass Box Maker has a Gridfinity mode built in: set how many cells across and deep, and it snaps the footprint to the 42mm grid and the height to the 7mm module, then hands you a flat cut file — the grid layer and the matching bins, sized to your material thickness. No STL, no guessing, no leftover plate that's one cell too short.

Because it's parametric, changing your mind is one slider, not a re-download. Want a 5×3 base tomorrow instead of 4×4? Drag it and re-cut.

A couple of things to get right whatever tool you use:

• Measure your drawer for real, in millimetres, before you set the cell count — mixed units are how a base ends up a cell short.
• Dial your kerf so the pockets aren't loose. The grid's tolerance is tight by design; a quick kerf calibration makes bins seat with a satisfying click instead of a rattle.

So, print or cut?

If you're outfitting a whole chest, the math isn't close. Cutting the flat grid is faster, cheaper, and stiffer, and you can knock out a drawer's worth in the time a printer finishes one base.

What's the first drawer you'd line with a grid — the driver drawer, the bit drawer, the box of loose hardware that's been mocking you for a year?

Generate the base to fit it, cut it, and start snapping bins in.

Frequently asked questions

Can you make Gridfinity on a laser cutter?

Yes, and it's faster than printing. A Gridfinity baseplate is a flat sheet with a 42mm grid of pockets — exactly the shape a laser is best at. You fake the pocket depth by gluing stacked flat layers instead of printing Z height.

Is laser cutting Gridfinity faster than 3D printing?

Much faster. On a 10W diode laser a 2x2 base cuts in about 9 minutes versus roughly 53 minutes to print. Across a whole tool chest, printing becomes an overnight job and cutting is a coffee break.

What size is the Gridfinity grid?

42 by 42mm per cell, with a 7mm height module. The dimensions are fixed by the standard, so how you fabricate it — print, CNC, or laser — is wide open.

How do I make a laser-cut Gridfinity base to fit my drawer?

Generate it to your drawer instead of downloading a fixed DXF. Set the cell count, snap the footprint to the 42mm grid, and cut a grid layer plus a solid floor layer. Measure the drawer in millimetres first and dial your kerf so bins seat with a click.