bladeless fan

by StefanR, published

bladeless fan by StefanR Mar 11, 2017
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5137Views 690Downloads Found in Electronics


Bladeless fan using a 40mm x 40mm axial fan.

Print Settings


self made printer











Select a powerfull 40mm x 40mm fan. The thickness can be up to 25mm.

The fan-casing has an 8mm hole to mount a dc panel jack. Use a power supply according to the fan voltage.

adhesive 2mm foam rubber
4 tapping screws diameter 2-2,5mm max. length 12mm


Wrap the fan with the foam rubber. It is used to isolate the vibrations of the fan from case. Insert the fan into fan_casing. In the inner side the notch can be used to thread the wire to the bottom of the fan-casing to the DC panel jack.
Assemble the outer_case with the screws to the fan_casing.
Snap in the the inner_case into the outer_case.
Snap in the pedestal. If it is to loose, use a hot air gun to bend the pedestal arms to the center.
Additional the holes at the bottom of the pedestal can be used to press in M10 nuts. This gives the fan more weigth and stabiltity.

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Really nicely designed! I printed one but the air flow could be better. I believe the gap between the inner and outer case needs to be widened as well as output airflow gap. I'd do it but I need the original files :p. Hopefully you agree and can make a version 2!

Thanks you print one. I´m not sure if a bigger cap and more space between the housing parts optimize the airflow. The overall cross section of the cap and the housing space is comparable with the fan sice.
Neither the less I upload a new version of the inner housing with slightly more space and gap. But it is not tested from my side.