IR components – £25
Printed PCB – £35
AW60 components – £40
PCB AW60 – £8
Motor and Chassis – £46
Special feature components – £20
Total component costs – £180 approx.
Lab time and cost of overhead resources – £7000 for entire year
Development cost – £20 an hour * 90 contact hours = £1800 per team member
To create a sustainable design we opted to use components in a way that drained as little power as possible. For our special feature we used a speaker, and when choosing which one to order we used one with a low power draw and compact size. It took several attempts to get working white line sensors and sometimes the entire circuit had to be reconstructed, but we decided to recycle components from previous attempts instead of using new ones to not be wasteful.
Our components can be taken to a recycling center at the end of their life, from which they will be taken to a processing plant and seperated into different types of metals and plastics. We used an SD card for our special feature, before being recycled the files on it may need to be backed up. There are companies who will recycle 3D printing filament like that used in our shell. For PCB recycling the metal is seperated from the board, where the seperated materials of the board are then reprocessed for future use.
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