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A Simple Rechargeable Cylinder Fan for Fursuit
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README.md

Redcraft Fursuit Cylinder Fan

A Simple Rechargeable Cylinder Fan for Fursuit Heads

Installation

PCB

First, solder the components to the PCB, you can refer to the method provided in the Link.

The non-silkscreened 0Ohm resistor next to U3 is used to configure the fan PWM positive and negative. For DV05028B12U, use the 0Ohm resistor to connect pad closest to inside PCB (positive PWM).

The JP2 connector is used to connect the battery level indicator module, so don't solder XH2.54-2P.

You can refer to the following procedure to verify that the PCB is working, and reproduce the soldering of J1 or U1 if there is an abnormality.

Note

: No abnormally high temperatures in the IC and other components throughout the process.

Note

: The following tests are performed with a good battery.

Note

: If your Type-C PD power supply is unable to detect the current status, you can apply an adjustable power supply directly on the Type-C or C23 (left end is positive). But don't forget to test if it still works when connected to a standard Type-C PD power supply.

  1. Ensure that there is no shorts for C1 C2 C23 and that their resistance is at the MOhm level.
  2. Ensure that there are no false shorts between the IP2368 and Type-C pins and to GND.
  3. Ensure LEDs are oriented and colored correctly.
  4. When connected to a standard Type-C PD power supply and without battery.
    1. Ensure the power supply should be around 20V.
    2. Ensure the power supply should be around 0.6W.
    3. Ensure the C2 voltage should be around 12.6V.
  5. Insert a battery of less than 50% capacity, ensure the red light blinks 4 times and then goes out.
  6. When connected to a standard Type-C PD power supply with a 50% capacity battery (Pay attention to high temperature).
    1. Ensure the red light comes on quickly and without blinking.
    2. Within IC protocol negotiation, ensure the power supply should be around 0.6W.
    3. After IC protocol negotiation, ensure the power supply should be about 24W (12W for 5V, 9V, 12V, 15V).
    4. After IC protocol negotiation, ensure the voltage across R9 should be 10mV (right end is positive).
  7. After unplugging the standard Type-C PD power supply, ensure the red light goes off in about 1 second.
  8. When the battery is fully charged, ensure the red light will be off and the blue light wull be on.
  9. Ensure Type-C can support PD3.0 30W, APPEL 2.4A, BC1.2DCP, QC3.0 5V-12V, AFC 25W, FCP 24W, SCP 25W, etc.
  10. Connect the fan and make sure the fan can rotate and adjust the speed properly.
  11. Ensure the battery level meter can correctly display the battery level.

3D Printed Parts

Note

: The following parts are printed with a 0.4mm nozzle and 0.2mm layer height.

Note

: STLs not mentioned here can be printed using the auto-orientation directly

CylinderFan-Master-Body.stl - Position the fan upward and add support to the lower plane at the lanyard.

CylinderFan-Nozzle-*.stl - Add support to the outer circle below. Pause the print and add the magnet while the magnet hole closes the layer.

CylinderFan-Electronic-Body.stl - Print the LED translucent faces with a white filament. Add support to bottom slide.

CylinderFan-Battery-*.stl - If you select a finished battery, you only need to print the CylinderFan-Battery-Adapter*.stl part, otherwise print other STLs.

Assembly

Just assemble according to CAD drawings.

Be careful NOT to allow parts to run over, wrap around, or rub the wires.