A20M 4020 Fan duct (blower)
thingiverse
A 300° fan duct for Geeetech A20M (I Guess this thing will be suitable for A10/A30 A10M/A30M and A20, fell free to test it) Designed to be mounted on the hotend with original fan screws (longuer ones at bottom) Just need 3 screw to mount the fan to the fan duct.
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