MengQiBowden Extruder Upgraded V3.0 Dual Drive Gear High-Performance Parts for CR10,Ender 3 Series,Anycubic Mega S, I3 Mega Chiron,Tevo Tornado, Wanhao D9, Anet A8 E10 and Prusa I3 DIY 3D Printer

My Anycubic Chiron kept dying in the first 10% of a print. I rechecked levels, replaced the hotend with a spare. Nothing worked. Then I noticed the extruded only moved the filament sometimes. I ordered this extruder, installed it and and it’s back to working great. Installation was fairly easy and straightforward.

works well so far

I had high hopes for this extruder and it installed great. I love the clear case so I could see if there were any issues. E-step calibration went smooth. On my 3rd filament load, the filament broke off inside the extruder. Even with running the extruder in reverse and pulling on it, it was truly stuck. So much that the other end broke off. Now I had a tiny piece wedged in the tube. On a positive note, I could take apart the extruder pretty far. Unfortunately the jammed piece was right in the little middle tube. Finally resorted to drilling it out. A few weeks later, with a new spool, the same issue. After having to do a complete disassemble for a 3rd time, I gave up on this extruder. Great idea and looks cool, but endless issues for me.

If you have landed here, you were probably looking for alternative (cheaper) to the BMG dual gear extruder. There are no doubt many clones out there, and this one doesn't stray far from the mold.The clear plastic housing is a happy little novelty since it allows you to see the inner gears, and doesn't take away from the design strengths at all. The included tension spring seems a bit tight, but I think that's better than being too loose. the knob makes for easy adjustment of extruder tension though, which is one of the major selling points of this design. it definitely succeeds here.the kit includes mounting bracket to adapt to the existing ender 3 / cr-10 / creality mount, but I think most people will be like me, and got this for the direct drive option, and so you will likely need to select one of the 3d printed solutions to mount the extruder above the hotend.This is a good clone of the design, and works really well in direct drive configuration. The filament feed is probably one of the easier extruders I've dealt with (i have 5 active 3d printers, and have built / used / sold may more).One note, you will absolutely have to calibrate your e-step after installing this extruder (as you with with any extruder changes), or else your prints will actually get worse. Factor that in, and learn how to do that before jumping into this if you don't already know how!

This is not what I was hoping for. I thought this could be a nice upgrade for 1 of my printers. Although I thought it would work, I did have several issues right off the bat. First, the hand screw wasn't catching the treads when I tried to install it. So I removed the spring and washer and moved the lever back and just worked on screwing it in, hoping to get it started and turn it in and out a few times and then install it. It went in but only went a few turns. No matter how much I turned it didn't move any further, in or out. The plastic knob was turning but the screw was not, not a big deal, I just replaced it with a conventional screw. But when I got that taken care of I rotated the gear with my thumb and about a quarter of a rotation was smooth. The remaining 3/4 felt like the stepper motor was attached to it. The one currently on the printer operated smoothly through the whole rotation. Also where the screw goes through the slot in the lever, it rubs on the treads. None of these things would prevent this from working, if trying to replace a broken part, But I feel I would be downgrading my printer by using it. It will go into the spare parts drawer. ⭐️⭐️⭐️

This is a great dual geared extruder, with the added bonus of being clear which allows you to see what's going on at any given time. That comes in handy whenever you need to do some troubleshooting - like if you have a problem feeding filament, etc.These extruders are very lightweight, and have a dual geared setup, which makes them ideal for a direct drive setup, which is how I'm using it with my Ender 5 Pro.Extruder comes with everything you need to install it if you're doing a bowden setup. If you're going the direct drive route, you'll need to print or purchase a bracket that will hold the stepper and extruder on your x-axis carriage. They even include some precut lengths of PTFE tubing.Oddly enough, there's a bracket included to mount the stepper onto the extruder, but the screws that they provide are too short to use it. But that seems to be the case with all of these types of extruders I've purchased, so this one isn't unique in that regard.Performance is excellent, and its nice having peace of mind that customer support stands by their product. 5-stars!

The screw piece that tightens the arm to apply tension failed right away. the plastic grip piece just spins freely upon the screw so you can't tighten or loosen it. once that happens you no longer can adjust pressure on the extruder, and can't open the arm up to clear out a jam.Even without that though I have doubts of it's quality. inside the gear piece doesn't line up with the outlet which will make for difficulty feeding. Also will make trying to feed TPU a absolute pain in the bum.The dual drive gears are cut horribly. you can feel how they are not cut smoothly as they will grind when rotating through about 70* of the rotation and bind.The piece that the tensioner screws into has a hole that is too small causing the screw to have to bite through plastic before it can even get into the part it's supposed to screw into.for $20 bucks you might as well just stick with the stock extruder, or if nothing else go with an all metal version clone of the stock for less. This is by no means an upgrade.