Accessibility and cost
Develop a 3D-printable arm around Arduino Nano electronics and a target budget below €50.
A 3D-printable robotic arm developed around a specific constraint: Arduino Nano–based electronics and a total target cost below €50.

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Develop a 3D-printable arm around Arduino Nano electronics and a target budget below €50.
The CAD geometry is available to explore. Printing and assembly of the physical prototype are still partial.
Complete assembly, integrate the electronics and document measured performance and actual component costs.