Reddit reviews 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]
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![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.jpg)
Original Upgrade Replacement for Creality CR10 Ender 3 Series:CR-10 Series,Ender 3, CR-10 S4, CR-10 S5, CR-10 Mini, CR-10S, CR-10 Plus.This durable aluminum extruder frame works more stable than plastic parts.Bowden extrusion is supported:It comes with a nema stepper motor mount,works great on TEVO Tarantula i3,Anycubic Kossel i3 Mega,Flsun i3,MP Select and other bowden extrusion 3d printers as well.Direct extrusion is supported:This upgrade parts can also work as MK8 extruder frame with some screws replacements.Recommend filament materials:PLA/ABS/Wood/TPU/PETG,40 Teeth drive gear feeds the 1.75mm filament very smoothy.Quality Warrenty:For 18 months after the date of purchase,we take care of all quality-related issues with a REPLACEMENT OR FULL REFUND.
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!