wfhDesk-bound professionals
Your standing desk is only half the story. Stand on something that stands back — five wobbly minutes between calls beats another coffee.
Find your brium.
A balance board you make yourself — one 2×2 plywood sheet, one lacrosse ball, one weekend. The files are free. The wobble is forever.
under $40 in materials · store-bought boards run $150+
The board isn't for sale.
The stencil is — and it's free.
Brium is a rocker-style balance board cut from a single 2 ft × 2 ft plywood sheet, riding on a lacrosse ball. You can't download plywood — but you can download the thing that turns plywood into a board: a 3D-printed layout stencil that draws the exact cut line at all four corners.
The curve isn't eyeballed. The long sweep is solved so it meets the corner radius perfectly tangent and peaks exactly at the board's edge — change any dimension in the OpenSCAD source and the maths re-solves itself.
R = ((L−rc)² + (W−a)² − rc²) / (2·(W−a−rc))
Four parts. You only shop for one.
Three parts come off your printer, one comes from the lumber yard — and the whole build lands under $40, for the kind of board that sells finished for $150 and up.
Built for the chronically upright.
01 / 06
photos · unsplash — sable flow / saad ahmad / linus nylund / jan kopřiva / zhen yao / gustavo torres
From sheet to send in four moves.
Two flat halves and a handful of pegs — about 40 g of PLA, no supports, fits a 180 mm bed. Join them with a pin of spare filament. That's the whole tool.
≈ 40 g pla · no supports · 180 mm bedTrace
Hook the stencil over a corner of your sheet — it registers itself against both edges. Trace, rotate, then flip it, drop the pegs in, and do the other two. One template, four corners, zero measuring.
1 template · 4 corners · 0 measuringCut
Jigsaw just outside the line, sand back to it. The curve is fair by construction — perfectly tangent arcs, no kinks to fix — so what you sand to is what the maths drew.
jigsaw · sand to the line · round the edgesRide
Drop the board on a lacrosse ball and keep a fingertip on the wall. Day one you flail — that's the point. Day two you stand. By week two you're taking calls up there, suspiciously calm and annoyingly good at standing on things.
1 lacrosse ball · 5 min a day · ∞ wobbleopen sourceNo checkout. No login.
No checkout. No login.
Just a repo.
Brium is free and open source under CC BY-SA 4.0. Clone it, print it, fork it, and if you make it better, send it back.
github.com/klubieniecki/brium-board
The repo ↗
Everything — source, STLs, sliced 3mf projects, the full build guide.
stencil ×2 + pegs + standThe STLs ↗
Ready to slice. The stencil prints flat, no supports, on a 180 mm bed.
brium_stencil.scadThe OpenSCAD source ↗
Every curve is a parameter. Change the sheet size and the maths re-solves itself.
readme.mdThe build guide ↗
Bill of materials, the rip cut, the trace, the sanding — start to send.
printables · model 1341613Standing on dtxtr's shoulders ↗
The board profile and stand are dtxtr's design. This project re-derives them for a 2×2 sheet and adds the stencil. Go like the original.
printables · model 926271…and whitespring's before that ↗
The family tree runs back to whitespring's Rola pattern and parts. Get their original pattern and printed parts on Printables.
cc by-sa 4.0Remix it ↗
Print it, build it, tweak it, sell boards at your local market — just share what you change. Printables & MakerWorld listings coming soon.