Twisting chains

One assumption I made on early chain designs was that the sphere would sit directly atop them. In another configuration, the Delta (or triangular) version the chains are now sitting at an angle to the sphere. Chains are extremely strong but not designed to handle...

Redesigning a more affordable linear actuator

Conventional motion simulators use mechanisms call a linear actuator, which is a motor that turns a big screw which pushes a rod. They’re pretty simple devices and quite useful for motion. The more actuators you add the more degrees of movement you can get. The...