- Stock: 41
- Model: BFB0712HF
Delta BFB0712HF 12 V centrifugal blower, the model used by the original regular or 300 Nevermore StealthMax project. Its compact, approximately 65 × 65 mm format provides the static pressure required to move air through the carbon basket and HEPA filters.
Verified unit data
| Feature | Value |
|---|---|
| Manufacturer | Delta Electronics |
| Model | BFB0712HF; the photographed unit shows suffix -9K01 |
| Rated voltage | 12 V DC |
| Label current | 1.80 A |
| Calculated nominal electrical power | Approximately 21.6 W |
| Outer format | Approximately 65 × 65 mm |
| Mounting-centre spacing | Approximately 37 mm, according to the displayed measurement |
| Cable | Approximately 60 mm; four black conductors and a four-position connector |
Nevermore compatibility
This is the fan specified by Nevermore3D for the original Nevermore StealthMax 300. Compatibility assumes the printed parts, filters and mounting arrangement for that version. Similar dimensions do not guarantee the same fit, airflow, pressure, noise or connection.
- Reference compatibility: original regular / 300 Nevermore StealthMax.
- Not recommended as a direct replacement: Nevermore StealthMax S / 250.
- Not automatically verified: StealthMax V2, Nevermore Micro and third-party modified housings.
Safe electrical connection
The unit label states 1.80 A at 12 V. The power supply, connector, wiring and control stage must support that current and start-up with a suitable margin. Do not connect the fan directly to a logic pin or to a fan output whose current capacity is not documented.
The photographed unit has four black wires and a four-position connector. A pin assignment is deliberately not stated because wire colour cannot identify it and the arrangement may depend on the exact suffix. Verify the unit pinout before applying power, never test random connections and observe polarity.
Firmware control
Nevermore calls for a 12 V supply and PWM control, but the implementation depends on the controller board and fan pinout. Before firmware configuration, determine whether the installation switches fan power through a suitable MOSFET or uses the fan's dedicated PWM input. These are not equivalent connections.
- Klipper: a suitable output can be configured as
fan_genericand controlled withSET_FAN_SPEED, provided that the pin and electrical stage are appropriate. Pin naming and control logic depend on the board. - Marlin: a compatible fan output can normally be assigned and controlled with
M106 P<index> S<0-255>. The index, pin and available capability depend on the board and compiled Marlin configuration. - RepRapFirmware: a suitable output can be assigned with
M950 Fand controlled withM106. Exact syntax, port and range depend on firmware version and electronics.
Perform initial testing while attending the printer, confirm reliable fan start-up and check that the control stage, connectors and cables do not heat up. A correct firmware command cannot compensate for an underspecified output or incorrect pinout.
Contents
- 1 Delta BFB0712HF 12 V blower with short cable and four-position connector.
The Nevermore housing, power supply, controller, adapters and other components are not included.
