Week 5 Update - Tooling Arm Progress

The tooling was 3D printed and assembled to test the fit and motion. 3D printed blades were used in place of metal blades in order to identify any problems before machining.

Several issues were identified:

-The servo motor obtained from campus surplus had a broken motor. A replacement was found and tested to be working.

-The campus machine shop does not carry the springs that were selected during the design process. A spring with the desired extension constant of 7lbs/in. was chosen as a substitute, however the nominal length is different. This required a redesign of several parts.

-The servo motor draws a stall current of 1.5A. The servo motor was initially run using the 5V and gnd pin of an arduino however this current draw caused the arduino to stop working. The servo is now being powered directly from a 5V power supply instead of using the arduino's pins.