How to build Boing Beast: a printable mechanical toy

Boing BeastUnruly MobCrafting Tier 3 of 6

Boing Beast bounces on springy folded legs and swaps moods with two masks.

Boing Beast assembly video

The video is being filmed. Until it’s ready, the 4 illustrated assembly pages in the blueprint pack show every step.

Let's Get Started

  1. Print the blueprints
  2. Glue them to a carton
  3. Cut the black lines
  4. Fold the red lines
  5. Assemble our toy
Watch the How-To, Safety & Pro Tips Video

Featured Mechanism:

Flexure Hinge
Hinge made by a fold: the carton board bends instead of turning on a pin.
Spiral Reinforcement
Spiral-rolled insert that stiffens a rod.
Transition Fit
Snug fit: the parts go together with a gentle push and stay put.

Toy facts

Crafting Tier
3 of 6
Parts
7
Cut-line segments
198
Fold-line segments
82