MengQi Bowden 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. ⭐️⭐️⭐️