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Reassembling the Pioreactor

Step 1: Necessary parts #

  • Fan
  • Top faceplate (will have 4 x 30mm screws in it)
  • 1x M2.5 10mm screw

Step 2: Complete the top assembly #

  1. Push the fan onto the top faceplate, orienting it such that the wire is pointing towards the button.

  2. Place the vial holder on top of the ends of the M3 30mm screws. The screw ends should fit into four holes on the bottom of the vial holder. The flat flex cable should follow the arrow on the faceplate.

  3. Holding it together, finish screwing the M3 30mm screws on the bottom of the faceplate. The screws will enter square nuts in the vial holder. Do not overtighten.


    You should not feel resistance when tightening the screws into the square nuts. If you encounter resistance, unscrew partially and inspect the end of the screw for any plastic debris.

  4. The screw heads will be flush with the faceplate, and there should be no screw threads showing between the vial holder and the faceplate.

Step 3: Button extension #

The top faceplate now comes with a button extension to provide easier access when pushing the button.

  1. Flip over the assembly.
  2. Insert the M2.5 10mm screw into the hole under the button extension.
  3. Place one finger behind the extension and apply force and torque with the other hand until the screw is secure in the hole. Once established, a screwdriver can finish the job. Tighten until you feel resistance. Don't over-tighten!

Step 4: Putting it all together #

  1. Place the vial holder assembly onto the Raspberry Pi/HAT's corners. The GPIO pins align with the side notch of the faceplate.
  2. Using the M2.5 6mm screws, attach the top and bottom pieces in each corner.
  3. Check that the screw for the button extension is in the right position, and not compressing the button below prematurely. You should feel a "click" when you depress the button extension.
  4. Open the flat flex cable connector on the HAT by pulling the tabs outward, like done previously. Insert the flex cable copper-side up.
  5. Push the tabs inward to secure the flex cable.
  6. Insert the stirring power connector into PWM channel 1 (unlabelled).
  7. Continue to the next page.