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Mechanical puzzle

ASTROLABACUS®

A precision-made edition of a classic mechanical challenge.

6
hinged segments
18
coloured balls
4
colour editions
An ASTROLABACUS puzzle in purple, green, yellow, orange and red, resting on a wooden bench

How it works

Eighteen balls, one loop, six hinges.

  1. 01

    Six hinged segments

    Each segment contains two colour-coded tunnels and three coloured balls.

  2. 02

    One continuous loop

    As the hinges articulate, tunnels align to form a continuous loop; eighteen balls circulate and can be shifted.

  3. 03

    Restore the colours

    The puzzle quickly becomes scrambled; the objective is to return each coloured ball to a tunnel of the same colour.

Play video: General movement
Close view of an ASTROLABACUS puzzle showing the printed tunnels and balls

Made by hand

Printed, assembled and finished one at a time.

  • All puzzles are FDM-printed in ABS and hand-assembled.
  • Each piece is individually finished; minor variations are normal.
  • The puzzle is intended for normal use and should be handled with care.
  • Components are joined using printed pins; disassembly will cause damage.

Stuck?

There is a way back.

No advanced algorithms are required. Once familiar with the puzzle’s spatial articulation, the solution is straightforward.

Play video: Solve

Keep me informed

Production is limited. Send a short email and we will let you know when puzzles are available again.

Email info@astrolabacus.com