A simple dust-collecting and vacuuming device, with HEPA filter cotton used for filtration, incorporates the HEPA filter module from my Exhaust Air Filtration Box project. The fan is a 12V 1025 turbo fan, with its speed controlled via a PWM controller and powered through a Type-C port.

The electrical component mounting plate is secured using M4×8 flat-head screws, requiring either M4×6×5 or M4×5×5 hot-melt nuts embedded into the main body, or alternatively, M5 self-tapping screws can be used for fixation.

The front cover is held in place by four 14mm×2mm round magnets, which are glued into corresponding slots. Thanks to these magnets, the front panel can attract commonly used metal tools, such as files.

The pattern on the top cover is created using an internal infill design; you can modify the modifier parameters to customize the pattern.

For detailed information on the filter cotton module, please refer to the description in my Exhaust Air Filtration Box project.

The speed regulator is a PWM DC motor speed controller.

The fan is a 1025 turbo fan purchased casually from PDD.

The inducer is this one:

In addition, two small wires are needed to connect the inducer to the PWM speed controller—24 AWG or 22 AWG—depending on the operating current of the fan you’ve purchased.

3M adhesive tape is used to secure the components.

The magnets securing the front cover:

Installation procedure:

1. Press in the hot-melt nuts (no need to do so if using self-tapping screws), then install the fan as shown in the diagram. Use tape to secure the fan cable near the fan to prevent it from rubbing against the wire during operation.

2. Wire up as shown in the diagram; the single screw on the right can be inserted first, but it must be installed before the potentiometer knob. Additionally, the yellow tachometer wire from the fan can be cut off, or its metal portion can be wrapped with insulating material and then secured away from the electrical components. Two small wires are required to connect the PWM speed controller and the inducer; I took a shortcut and used DuPont wires, but you can easily buy ready-made small wires online.

3. Apply sponge tape to the PWM speed controller and the inducer.

4. When closing the unit, make sure the fan cable isn’t touching the fan. Secure it with M4 screws or M5 self-tapping screws.

5. Install the magnets.

6. Install the filter module, the top cover, and the potentiometer knob.