太白金星

Convert a violent fan for welding into a vacuum cleaner

Overview

I made a control board for the CPU fan. The air volume is OK and the noise is not loud.
The fan I use is a 12V fan with a length, width and thickness of 6cm and a thickness of 3.8mm. I bought it on Taobao for 20 yuan.
The control chip I use is a 555.
I drew a shell myself with SolidWorks.
The sliding rheostat and the resistance value calculation of the resistor need to be calculated.

I used super light clay to cover the air leakage problem. It is a bit ugly.

If you have other questions, you can contact me. I will reply when I see it.

Design Files

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Update:2024-11-21 12:56:25

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