We have solved the problem that we were having where the monofilaments were falling and getting stuck on each other after hitting the foot. To solve this problem, metal pieces that are used to hold the motors in place were made with an extra piece that acts as a divider between each of the monofilaments and keeps the monofilaments in place. 

This week we will be testing the device. We will be testing to see if the monofilaments can hit the foot, if they are hitting the specific sites, if the correct output score is shown, and if the test is perceived as random. We will be performing statistical analyses on these results and will have our final presentation next Wednesday.

Up-close video of a motor moving the racks along the gear.

Video showing the randomization of force application.

Video of the adjustability of the device.

The device has been built and we presented our design at the 2017 NEBEC last Friday. We were happy to receive positive feedback at the conference.

This week we will be working on fixing some issues found when running the motors on the frame of the device. Currently, when the motors move the racks along the gears, the racks start to fall out of the 3d printed pieces. We will be solving this problem this week. Additionally, we will be connecting a new pushbutton and an on/off switch to the Arduino. At the end of this week we hope to have the electrical wires organized and the device close to completion.