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Topic: Extruder Fan direction ?

I have a XYZ mini and the fan on the extruder blows out to the front of the printer.
I also have a CTC dual and the extruder fans suck in from the front of the printer, is this right ?
The reason I ask is that I have had the CTC extruders to bits and was wondering if I've assembled them the wrong way round, I am having problems with top layers on prints. Can anyone with a CTC dual confirm which way the fans blow ?

2 (edited by yizhou.he 2018-12-04 21:50:08)

Re: Extruder Fan direction ?

That's is correct. Da Vinci miniMaker and Jr both have fan blows out to the front of the printer which is rare on other brand of printers. CTC dual fan blows towards back of the printer (or towards extruder motor).

(Da Vinci 1.0, Jr. 1.0 RAMPS, miniMaker) X4, (Creality CR-10S, CR-10 mini, Ender-3) X4, Anycubic MEGA X4, Anycubic Chrion X1, ADMILAB Gantry X2 (MonoPrice Maker Select V2, Plus, Ultimate)X4--Select mini X1, Anycubic photon X4, Wanhao duplicate D7 X1.
iNSTONE Inventor Pro X2, CTC Dual X2, ANET-A8, Hictop 3DP-11, Solidoodle Press, FLSUN I3 2017X1

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Re: Extruder Fan direction ?

Fans always blow towards the label side of the fan. Or the side away from the blades. On the CTC they should blow towards the heatsinks behind the fans. They usually have a mark on the side with an arrow showing rotation and wind direction as well.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

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Re: Extruder Fan direction ?

Thank guys, I was doubting myself a little for a moment, thinking I'd put them back the wrong way round ;o)