kivilaid.ee · 2026

FitBox

Turns a 3D scan of a space into the largest buildable plywood subwoofer enclosure, with cut patterns, bevel angles and predicted response.

3D geometryAcousticsIn-browser solver

What it does

< 60 s

typical solve

±1 mm

verified fit

drivers in the database

export formats

Fitting a subwoofer box into an odd-shaped space — a car boot, a cabinet — usually means cardboard mock-ups, guesswork and wasted plywood.

~/fitbox

$Upload an STL or OBJ scan; it's parsed and repaired in the browser and never leaves your machine.
$Calibrate scale, level the floor, close the cavity and mark keep-out zones.
$Pick a driver from the database; target volume, tuning and port length come from its Thiele-Small parameters.
$A deterministic solver finds the biggest rectangular, convex or non-convex box that respects every build constraint.
$Exports nested DXF and SVG, a cut list with bevel angles, 1:1 templates, STL, bill of materials and cost.

A few lines on LinkedIn about the problem is enough. I read everything.

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