Artbot Cartesian drawing example.

As the development of the artbot continues, many new and unexpected challenges are presenting themselves. One of these challenges is the inaccuracy in the (3D printed) artbot chassis. This means that the device needs significant callibration. For example: The wheels may be of slightly different diameters, so they will travel different distances The wheels may[…]

Playing with Harmonographs

Harmonographs are mechanical devices that use pendulum motion to create intricately patterned drawings. They often use 2 pendulums but could use any number. As the pendulums slow down due to friction (called damping) the resultant patterns continuously change. Each pendulum effectively¬†provides¬†2 oscillating motions (because they draw ovals, not circles). Harmonograph motion can be simulated, both[…]