30mm axial to 4015 blower fan
thingiverse
Decided to make and test small light powerful blower fan out of broken 3010 axial fan. Hers the result. It can outperform cheap sleeve 5015 maybe even not that cheap fans too I have no means to test how much air this thing can blow but I can feel stream of air 1 meter away from fan. Electronic are from 30x30x10 Winsinn dual ball bearing fan. Also I did some 3 min research on internet to see what rotor blades are most efficient to get high pressure output. Funny but most of fans we can buy are with wrong blades. Not saying I found best angle or shape of blades for this fan. Tested forward curved, backward curved and radial rotor blades. Backward works best (the way they are in pic)
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