Solenoid

The main idea was to include a solenoid in the delrin cup. This electromagnetic will generate the field needed to clump the ferro-fluid creating the resistance.

This did not work due to having the wire gauge being too small. We needed to have high current flow, but the wire would heat causing it too fuse together. In addition, the heat would warp the delrin cup being delrin is plastic. Bigger wires did not allow enough turns to be formed that will fit in the delrin cup.