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Regular price
$29.99 USD
Regular price
$29.99 USD
Sale price
$29.99 USD


Create mesmerizing mechanical art

Create complex epicycloid drawings with ThinkFun’s HypnoGraph, a marvelous drawing machine! Easy to use and fascinating to watch, the machine creates an infinite variety of drawings consisting of beautiful repeating curves. Fully adjustable parts can be configured differently to create drawings using the 13 interchangeable gears of varying sizes. Create drawings using guided setups, or rearrange the gears to design something completely unique!


  • 1 Hypnograph base
  • 1 geared turntable
  • 13 repositionable gears
  • 1 T-arm
  • Gear crank handle and connector parts
  • Instruction manual with drawing setups
  • Pen holder and 1 fine-tip drawing pen
  • 20 paper discs


  • Ages 8+
  • 1 player