KNURL

TWO KNOBS · ONE PANEL

WORKSHOP DEMO · NO. 11

Hello, world.

A grey panel that draws itself as you scroll — and goes blank when you shake the phone. Two knobs. Aluminium powder. No backlight.

Request a panel

Tip: on a phone, shake hard once. On a desk, press Clear or hit C.

§ 01

How the panel works

  1. 01

    Scroll to draw

    Each line waits undrawn until it enters the screen. The stylus is your scroll thumb.

  2. 02

    Shake to clear

    A real shake (or the Clear knob) flashes the ink, then returns the aluminium powder. Empty. Ready.

  3. 03

    Redraw

    After a wipe, keep scrolling — the same lines draw again from the top of the panel.

§ 02

Specimens

Three line drawings. They stay invisible until you scroll them into the grey field.

HOUSE · 12 STROKES
STAR · ONE PATH
SPIRAL · CONTINUOUS

§ 03

Editions

  • NO. 01

    Desk panel

    Red shell, grey screen, two knobs. USB-C for nothing important — it is still mostly plastic and powder.

    280 × 200 MM · 640 G

  • NO. 02

    Refill powder

    A tin of the aluminium mix we shake into empty panels. Smells faintly like a pencil case.

    80 G TIN · ENOUGH FOR TWO REFILLS

§ 04

Notes

Why does my phone ask for motion access?

Shake-to-clear uses the device motion sensors. On iOS it needs a tap first (use Enable shake or the Clear knob). If you decline, Clear still works — only the physical shake is off.

Is this a classic two-knob drawing toy?

No. Knurl is our own panel, milled in the same workshop that fills it. The childhood muscle memory is the point — scroll draws, shake clears — but the shell, the powder, and the screen are Knurl's own.

Why is there no Buy button?

This page is a catalog sketch. Samples go through mail — write [email protected] and we will send one if a run is open.

What happens when I prefer reduced motion?

Lines appear fully drawn with no stroke animation. Clear still blanks the panel, without the invert flash.

Knurl

A two-person panel shop. We mill shells, fill powder, and ship slowly.

Request a panel

SCREEN #E8E4D8 · INK #1C1C1C · BEZEL #C62828

TYPE: LIBRE BASKERVILLE + IBM PLEX

SHAKE · CLEAR · REDRAW

SHAKE PHONE TO WIPE · C / ESC ON DESK