Ah I don't know where to put this but I was supposed to tell someone about my HomeDepot Blizzard fan mount. Ugly, cheap, effective, & you can have it this afternoon.
I think if you hang these fans upside down they will last longer. The small oscillation arm popped on both of mine. I didn't want to wait or look for 3d printed mounts so I went to the Depot. PEX hangers are just about the right size for most grow tent poles. The 1/2" fits best but the 3/4" is longer and the fan won't hit the sides of the tent. They are stout pieces.
PEX hanger
Hose clamps
Zipties
Drill one hole through the hanger.
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Once the oscillation feature broke the fan head was completely floppy. Zip tie the bastard in place.
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The only tricky part is drilling a hole in the black arm PEX hanger. Finding a bolt that fits the hole through the fan base is important.
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