When it came to actually prototyping our project, the biggest issues we ran into were definitely with getting the load sensors to behave. Because of the way that they function, we had to design and laser cut mounts for them, so that the sensor plate had some vertical travel.
Additionally, wiring these sensors up caused us a lot of trouble. Each sensor has three total wires coming out of it: one that runs to a specific input on the amplifier, one that runs to the adjacent load sensor and one that runs to the diagonal load sensor, creating a loop where they can all communicate with one another.
This aspect of these sensors was especially painful when it came to soldering all the wires to add enough length for them to work with our bench. We ended up extending each wire by about 60 inches in length to be safe.
The load sensors also had a big impact in the way that we had to design the physical structure. Not only did the sensors require some amount of vertical travel to work, but the surface resting on top of them had to have some give as well. To address this, we designed the bench so that the sensors could sit on top of each leg of the bench, with the top resting on top of the sensors, all within the frame of the seat.
Build Process
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| UW School of Art Wood Shop |
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Measuring out boards to be cut
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| Part 2 |
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| Cutting boards to proper length |
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| Part 2 |
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| Cutting plywood top to proper dimensions |
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| Assembling frame with power drill and screws |
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| Priming and painting bench |
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| Finalizing code before final assembly |
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| Receipt iterations |
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| This ones uh a real head scratcher |
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| Testing print quality |
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| Expert level cable management |
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