modular portable workshop fan
thingiverse
This is for 120 mm Fans and a 9Ah Scooter-Batterie. I use M6 screws for the segments and M4 screws for the fans. U need that switch https://www.amazon.de/gp/product/B00OQ01XR4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 If U take a lot of fans, its better to take a second switch. Just because of the Ampers that flows.
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