The aiming mechanism requires a 180° span to cover a wall. This will ensure there is no area in a room that is out of reach. This page is dedicated to models built to design and test how this will work.
Test 1
- Hypothesis: By using two pivot points, the product will have a free range of motion. There will be suitable room for motors to be attached and for the cartridges to pass through.
- Application: Using foam board, a safety knife, a glue gun and two screws a two pivot point construction was assembled.
- Outcome: The hypothesis was correct and there is seemingly lots of room for all the components.
Test 2
- Hypothesis: Using a curved support beam, the weight from the top half of the product can be supported whilst leaving enough empty space for the aiming mechanism to move freely.
- Application: I used card board to build and test the structure in mind. I then tested the strength of the structure by placing cans on top of it.
- Outcome: The part worked perfectly and only deformed slightly from the weight. This is not a worry as the weight applied was more than the desired weight of the product and the actual product will use a steel support beam, not card board.
Application Of Prototyping In Final Product
The exit unit is free to move 180° left – right, and 90° up – down. These movements are controlled by stepper motors. The inner support beam (part 54) highlighted in red, is made from steel. The outer support beam (part 39) highlighted in green helps to support the load, but most importantly stops the top of the product from rotating with the mechanism.
