The Fetch-o-Matic is an automatic tennis ball launcher. I used two separate designs for the Fetch-o-Matic. There was one design which used the motor to wind up the spring and then uses the combined forces of the spring and motor to move the whacker at high speeds toward the ball. The other design, which has much less potential to hit the ball with force but is more consistent is the power doorstop design. This design uses the motor to pull back a spring that flicks the ball out of the Fetch-o-Matic.
Area of interest
Overall, my time at BlueStamp opened my eyes to multiple aspects of engineering I wasn’t privy to beforehand. I realized that engineering is not building things but rather solving the nearly infinite amount of problems that get thrown at you as you’re building it. I also realized that project-wise, mine could have been extremely better if I had realized that I had springs of doom and destruction instead of the ones I intended to order. If I had realized this beforehand, I might have had the correct spring to use and then I may have gotten my project to be more powerful. However, I plan to continue working on this until it works how I want it to.
However, I ended up completing the box and will combine my circuit with the casing next milestone. I started this case by first finding the base schematics and then adding my modifications so that it better fit my situation and my motors. After planning out the cut-out, I had an instructor use a jigsaw to cut out the pieces. I then marked all the places I would drill and eventually inserted screws as my connectors. Finally, I had completed my outer casing.