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New Project: The MakerGear Mosaic 3D Printer – Part VII: The Electronics

This is the seventh of eight guides in a series documenting my build of MakerGear’s Mosaic desktop FDM/FFF 3D printer kit.

  1. the frame,
  2. the Y-axis,
  3. the X-axis,
  4. the Z-axis,
  5. the extruder,
  6. the build platform,
  7. the electronics, and
  8. the first print.

This part covers installation and wiring of the electronics that control the printer. First, the Arduino and attached RAMP shield are mounted on the printer frame. Second, connections from the build platform wiring harness, the extruder wiring harness, and other components are clipped to the PCB. Finally, the power supplies are connected, and formal assembly of the printer is complete.

Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.


  • Jasper

    Hi, nice 3d printer. Can you tell, where I can find this PCB?

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