ER-11 Collet fan CNC 3018 Max Pro 300W

thingiverse

So far. As I can see, it works. Have attached the second collet fan that leaves the hex nut face exposed. The fan makes a press fit. It needs a vice to put it on the nut. The hole is undersized a little. By design 0.1mm less than the nut diameter. Result: No increase in noise or vibration. It makes a no wind storm, it just agitates the air a bit. German: Es macht ein kleines Lüftchen. Heck, the cheaply made Chineese crappy motors are loud as hell right from the factory. Needs a bit more testing. Will see how it fares when running the spindle over a long period of time doing a milling job. Collet fan for open M22 wrench (German: Maulschluessel) See the picture. Derived from https://www.thingiverse.com/thing:4695540 The original collet fan blocked the hex portion on the nut. That's why I have added the flanges for the M22 wrench one one fan. The second fan goes the opposite direction leaving the hex flanges open.