
The material used for the Tinkerkit Braccio Robot Arm was poorly chosen and designed. The product description did not provide information on what kind of plastic was used. We assume molded plastic was chosen. This material was very brittle, especially where the plastic gear teeth were located. A way we can improve the robot arm in the future is by 3D printing each part using a material such as ABS that has high strength and can survive outdoor factors such as UV radiation from the Sun. Although 3D printing the robot arm is the ideal next step, another time saving option would be to purchase another higher quality robot arm and use the time modifying it. Due to limitations with the 3D printers in the CCNY MakerSpace, large parts for 3D printing had to be broken down into smaller parts which increased the complexity of the assembly. A next step would be to print the parts as their intended single piece instead of resorting to turning parts into even more smaller parts. Another issue was the time constraint. With more available time, parts could be printed to be stronger by providing a higher percent infill such as 60-100%. More structural analysis studies could be conducted in the future for different circumstances in the field. An example of this would be fatigue tests on the base. Design improvements for the location of the camera fixture to the base can be made. The camera must be located above the robot arm which made it difficult to find an ideal location for it. Currently the robot is only able to work in one stationary location. A future goal is to attach wheels to the base and make the robot a mobile autonomous unit. The product will be ready after these steps to be sold and start a business.