3D printing can solve many problems in life, but long-term indoor printing, coupled with the fact that you don't like to open windows in winter, you are in urgent need of a pipeline fan to ventilate the room. The diameter of the pipeline fan is 150mm (calculate the cost, it is better to buy a finished product at a small price, but 3D printing can be creative according to your actual needs, and then decide whether to issue mini according to feedback). The required accessories are as follows, before printing, be sure to read the following instructions to prevent waste of materials:

motor purchase link: [idle fish] https://m.tb.cn/h. TfpFp8s?tk = 6bjH3CZQfE8 MF7997 "I released [duct fan motor suit:]" in idle fish:] 」
click on the link to open directly

1. Motor

according to the characteristics of the pipeline fan, I chose a high-speed, relatively low-noise motor, using CLK speed regulation, although there is no PWM response speed, but for me will not go to regular speed regulation, power can be turned to meet my needs, 2 hours a day basic indoor ventilation once.

Special Note: The motor of the pipeline fan rotates counterclockwise, that is, reverse rotation. This motor needs to be changed to reverse rotation, that is, two UVW wires can be replaced at will. As the wires will cross, insulation is required (high-temperature adhesive tape can be used for blocking),

other types of motors can be modified according to the introduction of the merchant. Determine the size can be put

2. The speed regulator is CLK speed regulation, which can support CLK speed regulator. I chose a small one with switch.

3. Power supply and interface:

this motor is 24V, the interface is selected as DC 5525 thread size: M8

4. Wiring and installation precautions:

1) Installation

be sure to install the box of the blue control board on the main body and then thread the wire out along the hole.

2) The disk 2 and disk 3 files in the 3MF file are different, and the disk 3 file is assembled to the fan blade side

PS. If the fan blade is installed upside down, it will rub to the side wall.

3) Due to the reverse rotation of the motor, two M8 left-handed nuts are required, one for fixing and one for preventing loosening.

The use of a nut will be loose

4) Wiring:

Above, you can leave messages and private letters if you have any questions.