Balance board

wood board · ⌀12 roller · steel pegs in brass · all dims in cm
drag the board to rock it — pegs catch the roller
level

Spec

board
⌀60.8 × 1.5 thick · wood
roller
⌀12 × 49.6 long · wood
holes
4× ⌀2.8, two pairs
peg
⌀2.8 steel · flush top · 4 catch
bushing
brass sleeve, bore ⌀2.8

Materials

How it works

  1. 1

    drop two pegs into a pair of holes. they hang 4cm below the deck.

  2. 2

    rock on the roller. it rolls until it bangs a peg, then stops — can't climb over ⌀12.

  3. 3

    move the pegs to the other pair. close = short rock, easy. wide = long rock, hard.