Iverntech Upgraded Dual Drive Extruder for CR10,Ender 3 Series, Anycubic Mega S, Tevo Tornado, Wanhao D9, Anet A8 E10 and Prusa I3 DIY 3D Printer

I am very satisfied with this extruder. It has been performing well for me for over 2 years with no issues. The value is good, and I have been able to increase my Ender 3's print speed as well as print TPU with good quality results.

This was easy upgrade for my Anycubic mega SI had to reverse the drive motor to run in the proper direction. I just swapped wires on the stepper motor . You can also edit your e code program but my trigorrilla board is bad and won’t update firmware.Great product good quality. Well made. Looks like you can make this into a direct drive setup also.

The teeth that hold the Bowden tube in place broke after less than 50 hours of runtime. Without the bowden tube firmly attached to the extruder, the bowden tube can no longer guide the filament to the hot end, rendering the entire extruder useless. What's worse is the out-feed nozzle of the extruder, where the teeth are located, is permanently fixed to the extruder body, so there's no way to repair the teeth, other than replacing the entire extruder. Extremely disappointing for such an expensive extruder.

I got this to retrofit the second extruder on my FolgerTech FT-6 with something easier to load and that would operate better. So far it seems to be working fine, although the calibration for a 32 microstep motor was 418, not the 385 indicated in the listing. This was closer to what I found online from others. The included documentation didn't mention any of that (or much of anything since it was just a picture guide for assembly).As far as structure, the housing is all plastic with integrated Bowden connectors. That latter is concerning since I've had lots of problems with connectors and replaced them in the past. The other big worry is the big plastic drive gear for the reducer. Presumably the gear ratio is such that the plastic part won't see the worst wear, but given that an extruder will regularly eat up the plastic filament, having small plastic parts in the drive train seems questionable. I was at least pleased to see it did come with the mating metal gear for the stepper motor. It wasn't clear from the listing that it would. I was afraid they were assuming you were replacing an existing equivalent part.

I have had a hard time with keeping my Anycubic Mega X and pro going as they are printing almost everyday for hours on end. This extruder has been amazing! It was very easy to install and just works. I would say the only downside is the main gear that is driven from the stepper motor is plastic which wheres down over time but everything else is great! If you have a Anycubic mega printer then this is a great replacement extruder.

The gearing on this is reversed compared to the stock extruder. You will need to reverse the polarity of the stepper motor via firmware or hardware mod. While it's not difficult if you know what you're doing (swapping 2 wires) Someone without technical knowledge could be left with an unuseable part. Instructions provided did not mention this one bit.

For a clone, this works really good. You will really notice a difference when going from a single drive to a dual drive. It takes almost no tension on the lever and it doesn't chew up the filament. This is a RH extruder so if you are replacing a LH extruder, you'll need to reverse the stepper in the FW or re-wire it.I have found Iverntech parts to have have great quality in general.

I upgraded my Ender 3 Max to direct drive. I bought this extruder because the mount I printed took one of these extruders. I wasn’t totally sure about it but it turned out great. My prints look better now I’m not sure that it is all the extruder but I’m sure it had something to do with it. It’s great and if your thinking about getting one. Just do it you’ll be glad you did.