Gdstime GDP4028 Dual Ball Bearing 4-pin fan
Product number:
RT10168
Product information "Gdstime GDP4028 Dual Ball Bearing 4-pin fan"
40x40x28mm fan for use in the Nevermore Mini. Very powerful fan which can be controlled via the PWM pin down to sub-10%.
Pin Mapping:
| Red | + |
| Black | - |
| Yellow | Tachometer |
| Blue | PWM control |
PWM control follows the standard Intel Spec (5V pullup, 25kHz signal). If no signal is given via the PWM input, the fan will run at full speed. Relevant config options for Klipper:
tachometer_pin: # Set to the pin you like to use. Make sure it has either a hardware or software pullup tachometer_ppr: 2 tachometer_poll_interval: 0.001 cycle_time: 0.00004 hardware_pwm: true # Hardware PWM is preferred if your board is capable of it
Technical data:
| Operational Voltage (nominal) | 12V |
| Rotational Speed | 13000 RPM |
| Air Flow | 0.58 m³/min (20.5cfm, 34.8m³/h) |
| Static Pressure | 0.86 in H2O |
| Noise Level | 44.5dB |
| Current | 400mA |