Design sprint for Polyfyge 2.0

Week 33 Participants:

  • Jerry de Vos
  • Jose Carlos Urra

Design Principles

We are aiming for a mini centrifuge

Architecture design principles:

  • Avoid having as much floating components as possible. Solution:

    • Mount as much components as possible in the PCB:
      • Microcontroller board, Power Sitch, Power connection, Screen and Digital encoder
  • Make the architecture design and placement of the components manufacturing agonostic(as much as possible).

    • This means that people should be able to fabricate the casing with a 3D printer, laser cutter, vacuum forming etc.

Design requirements

  • Add a mechanical switch for the led to ensure safety mechanical-switch
  • Part of the rotor should be visible (transparent).
  • Use a teensy or similar solution that holds an SD card to store data about product usage, like cycles, etc.
  • The PCB should be accessible via easy disassembly steps, ideally one step.
  • Electronic connections should be robust and standard: connectors
  • PCB must facilitate ease of soldering.
  • The electronics should be easily testable without having to assemble the whole product.
  • Make the motor mount robust

Tasks and tests:

  • Make a preliminary PCB CAD module focused on architecture and component placement.
  • Rationale: We want to print the PCB prototype, or laser cut it to se how it fits the requirements above.
  • Make CAD design focused on fast printability.
  • Print it and test it with new PCB CAD prototype.