Upgraded Replacement CR-10S Pro Dual Gear Extruder Dual Drive Gear Aluminum mk8 Metal Extruder Kit for Creality 3D Printer CR-10, CR-10 S4, S5 Ender 3, Ender-5 and Tornado 3D Printer

FANTASTIC

Works well does exactly what I expected it too

Once fitted this is far superior to the plastic one that came with printer. Well worth the price and time. It would have been good to have an instruction sheet for putting together. U tube video didn't really help.

3 star because eventually I made it work,

Some instructions on how to assemble would of been nice not just put in a little bag

didnt fit my ender 5 even the it says its compatible . well made and great qaulity fited it all on just to find out it dont line up with the other driven gear dont know if this is just my ender 5 but the extruder motor shaft dont seem to be long enough to line the up with the other driven gear so when you tighten up the grub screw the driven gear just slides off as there is nothing to bite against

Fairly good quality, grub screw on the gear is pretty poor, no instructions included but straight forward to install, sadly didn't fit the output shaft (too short) on a stock Ender 5 so was returned.

All the parts you will need to replace the single drive unit.Works well, Only after you have calibrated the length of filamentYou Can not use the wheel, As there is no metal drive end left, Due to the extra hight of the Dual drive.

Schnelle Lieferung

È fatto in metallo, almeno non si rompe subito, fornisce una buona resistutizione di potenza in estrusione

The item itself is exactly as described. It works as it is expected to and is easy to install - as long as you take pictures BEFORE you remove the old one from your 3d printer.I opened the box to check the pieces and realized that it did NOT come with instructions. Thankfully I had not removed the old one, so I took plenty of pictures before I disassembled the piece from the 3d printer, it also helped that I had changed out the same piece on another printer before so I had SOME idea of the assembly.Overall, no complaints. I gave my review 4 stars simply because there should have been SOME instructions to make i easier to install. My printer works again so I am happy.

I have a 2021 ender 3. That has a shorter extruder motor shaft. This means that this extruder wont fit properly. So you have to change stepper motor too in that case

I installed this on my ender-3. I was afraid to have "self-grinding" problem with this but I see that the gears are designed in such a way so that it doesn't touch the plate itself.It's now printing amazing, just do not forget to modify steps/mm in the settings.Only cons; this is not a rocket science but it would be nice to have a small instructions paper how to assamble. You can watch chep dual gear extruder video.