We have been tasked with the design and manufacture of a toy/device that utilises a mechanical system with feedback via sensors to alter mechanical behaviour.
Our group has decided on a variant of the “Useless Box” (http://youtu.be/aqAUmgE3WyM). The useless box is activated with a toggle switch, an arm appears out of the box which then turns the device off. Our variant adds an extra degree of motion, in that once the arm has turned the device off a drive motor then causes the box to “back away” from the operator.
This system uses motors, limit switches and some basic circuitry in the design.
Other criteria that the device must adhere to include:
- Have moving parts.
- An on-board power source.
- Parts produced using CNC and manual processes.
- Fit inside a 250mm cube.
- Cost no more than £40.
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