Mechanism of the first prototype of the Useless Can
The old design
The first Useless Can mechanism is a lot different from our current design. The structure was entirely made of aluminium and was not as polished as the production Useless Can. The whole structure was ameliorated to be more effective, compact and durable.
The lower switch under the rotation arm have been replace by a small more effective one. The toggle switch was changed for a smaller model. A custom circuit board was created to facilitate the assembly and reduce the size of the component under the toggle switch.
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