#17 in 3D printer extruders
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Reddit mentions of Redrex Upgraded Aluminum Bowden Extruder with 40 Teeth MK8 Drive Gear for Creality CR-10 Series Ender 3 and Other Reprap Prusa 3D Printers [Right Hand]
Sentiment score: 2
Reddit mentions: 7
We found 7 Reddit mentions of Redrex Upgraded Aluminum Bowden Extruder with 40 Teeth MK8 Drive Gear for Creality CR-10 Series Ender 3 and Other Reprap Prusa 3D Printers [Right Hand]. Here are the top ones.
![Redrex Upgraded Aluminum Bowden Extruder with 40 Teeth MK8 Drive Gear for Creality CR-10 Series Ender 3 and Other Reprap Prusa 3D Printers [Right Hand]](https://m.media-amazon.com/images/I/41a+7ZYGjsL._SL300_.jpg)
or
- 【Application】:This metal extruder is compatible with Creality Ender 3 V2,Ender 3 Pro,Ender 3,CR-10,CR-10 S4, CR-10 S5, CR-10 Mini, CR-10S, CR-10 Plus ect.
- 【Direct Drive Extruder】:The upgrade extruder supports direct extrusion.A direct drive extruder improves extrusion and retraction by removing the need for the Bowden (PTFE) tube.
- 【Filament】：The extruder feeder supports PLA/ABS/Wood/Hips/Flexible/PTEG,with 40 teeth drive gear feeds the 1.75mm filament very smoothy.
- 【Durable Feeder】:The extruder feeder is made of heavy-duty aluminum alloy material,which is more durable and stable than the plastic one.
Features:
Specs:
| Size | Bowden Extruder(Rigt Hand) |
I grabbed a Micro Swiss All Emtal Hot End (plug and play basically) and upgraded the extruder to an Aluminum one 'https://www.amazon.co.uk/Redrex-Upgraded-Aluminum-Extruder-Creality/dp/B07DDGGN92/'
Stopped all my jamming issues anyway but not sure if thats what your after exactly.
"MK8 right handed extruder" is what you're looking/searching for. I bought this one https://www.amazon.com/gp/product/B07DDGGN92/ and it worked fine (there will be leftover parts since youre not using the bracket). I think they ranged in price from $11-$20.
/edit one more thing, you'll need a lighter to get the toothed pulley off of the stepper motor axle.
That one: https://www.amazon.com/Redrex-Upgraded-Aluminum-Extruder-Creality/dp/B07DDGGN92
There are similar clones on Aliexpress as well.
One more question if that's alright? When you say aluminum head is this a good example?
https://www.amazon.de/gp/product/B07DDGGN92/ref=ox_sc_act_title_1?smid=AEVHDVSO3QYHB&psc=1
Redrex Upgraded Aluminum Bowden Extruder with 40 Teeth MK8 Drive Gear for Creality CR-10 Series and other Reprap Prusa 3D Printers https://www.amazon.co.uk/dp/B07DDGGN92/ref=cm_sw_r_cp_apa_i_xlb4DbE0PW70W
If you want to go down the route of replacing the extruder, I recommend the right-hand MK8 aluminium extruders you can find on Amazon. Don't use the bearing in the kit, pick up a MR104ZZ bearing on eBay instead and then you won't need to take the metal extruder gear off of the stepper motor on the printer. I followed this guide on Hackaday to install and get back to printing.
Also, I've had varying results with the PC4-M6 included with the MK8 extruder to attach the bowden tube.
If you pull the filament away from the threaded lead screw for the z-axis, does the sound get quieter? If so, it may be grinding on the z-axis lead screw.
This can be remedied with one of these additional filament guides- https://www.thingiverse.com/thing:3129612
https://www.thingiverse.com/thing:3085765
https://www.thingiverse.com/thing:2897367
In my experience the guides modeled to include a ball bearing are better at dampening the sound.
The sound was greatly amplified when I printed and installed this particular one-
https://www.thingiverse.com/thing:2920344
This is because the filament grinds and catches against the printed part, and the sound echoes through the tight filament like a guitar string.
The parts utilizing bearings allow the filament to smoothly slide into the extruder assembly, and at a more direct angle.
Beyond that, you may consider upgrading to this extruder assembly, as it is metal and won't make the echoey ringing the plastic OEM assembly can make-
https://www.amazon.com/dp/B07DDGGN92/ref=cm_sw_r_cp_apa_i_TjG2DbHWMG3WQ
Careful not to overtighten the screws into this assembly, that aluminum is soft and you can easily strip the threads, and then you'll be unhappily purchasing another!