140mm table top fan...

Use it as a fume extractor when soldering, but also deliver a nice cool breeze when turned around...

Used the following:

140mm fan, any brand.
8 pcs Ø4mm buttonhead screws
Old powersupply (I used an old laptop charger).
Small PWM controller (optional! You can use a small 6mm togle switch or nothing!).
1 cable tie (for attaching the PSU to the bottom).
Your favorite printer and filament!

Optional: Tap for threading the stands, Ø4mm metric. Not mandatory, but nice. I didn´t use it on the prototype.

Enjoy!

Creality

Ender 3

No

No

Any

Any

I used a hacked internal laptop charger as PSU.

Take the needed precautions when working with 115/230V AC.

Any PSU will do, as long as the voltage matches your fan.

Any fan can be used. I had a new Fractal Design silent in the drawer...

The PWM regulator is optional... Nice to be abe to regulate the flow, but not mandatory.

A simple switch will do, or just the power adapter.

Enjoy!