A small accident...almost ruined our demo for tomorrow

During the testing of the teleoperator, one of the falcon stopped working. There was no force output, and the position reading was wrong. Then we found that one of the encoders was not calibrated. So we decided to open this thing and fix the encoder.

Then we found that a small piece of plastic was off the place it should be. That piece of plastic is used to calibrate the encode, which is a really smart design since the encoder itself does not know the starting point and end point. We glued that plastic backed, and it's working again!