Spirograph

Spirograph, made of 3 stepper motors and a ballpoint pen. The speed of at least 2 motors should be different. The pattern depends on the difference in speeds. To manage used ATtiny2313A microcontroller. Stepping motors provide rotation at a constant speed

Comments

[jpayne21]

love it

[amberrayh]

This is cool! Can you tell us more about the programming and electronics that went into making it?