Snapmaker U1 driver cooler for slim laptop turbine fans

Dell Laptop Blower Fan Adapter

This cooling duct is designed for the Snapmaker U1 and uses a Dell laptop fan (model DC28000K9D0 from probably old 2012 Vostro) to provide direct airflow over the stepper motor drivers.

The stock cooling solution was not sufficient during longer prints, causing driver temperatures to reach around 90°C.
With this duct installed, temperatures dropped to approximately 50–55°C under load, greatly improving cooling performance and stability.

The duct focuses airflow directly where it is needed most while keeping the setup compact and easy to mount.

I'm providing Fusion 360 file (sorry for mess in it, I'm still newbie), so everyone can modifiy and adjust it for your printer and your fan.

Features

• Designed for Snapmaker U1

• Significant driver temperature reduction

• Compact airflow duct design

• Direct cooling for stepper drivers

• Simple and effective upgrade

 Cooling Performance

• Before: ~90°C

• After: ~50–60°C during load (screenshots with temp in room at 24.8°C, and after ~1.5 hour of print)

Actual temperatures may vary depending on ambient temperature, and fan model.

Recommended Print Settings

• Material: PETG but PLA should be fine either (duct is cool during print)

• Layer height: 0.2 mm

• Infill: 15%

• Supports: Yes

• Perimeters: 3

• Adaptive layer height: Optional but recommended

 Notes

• Designed for turbine fane with 70x9mm exhaust

• Feel free to modify it to Your fan

• Use double sided tape to attach it to printer

• I recommend to rewire a fan with longer wires