er 20 spindle fan
thingiverse
I designed this fan to improve airflow for dust extraction on a ER20 collet spindle, as most chinese 2,2kw spindles are. when placed, the nut and 2 flat sides stay accessible for toolchanges. i have to admit that i printed this on a Markforged onyx one, with lichtweigt onyx to prevent for imbalance, but probably usefull in conventional plastics on regular printers too.
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