Fan hub brace and nut for lasko stand fan

thingiverse

This is a replacement nut and inner hub brace for a lasko brand stand fan with a one-piece plastic fanblade that has failed where the crossbar on the motor spindle sits. It's intended to replace the last cm or so of the hub, about as long as the depth of the notches for the crossbar, and snaps onto the five support fins that radiate out from the narrow plastic hub. I had to cut off the torn and melted hub at the failure point in order to fit the brace. It's a repair part, so print at high density I find that 80% or more is going to last longer. I'm on my third repair part, and so far, the PLA prints have all outlasted the original narrow soft plastic hub tube. The shortest lived PLA part made it about 10 months, and the longest about 16. The original fan hub lasted less. The replacement nut has only needed replacing once in three years, while the original failed about the same time as the soft plastic nut that came with the fan.