3DINNOVATIONS Dual Drive BMG Bowden Extruder High Performance Upgrading Parts for CR10 I Ender 3 Series I Wanhao D9 I Anet E10 I Geeetech A10 and Other DIY 3D Printers

Does the job well on my custom Prusa Bear 3D-printer. Gear seems to wear out, but works well.

Poorly designed product. External body of the extruder is colliding with the z-axis lead screw.It might fit but for that one must file the body where it is touching the lead screw.Also the plastic gear is only a few millimeters away from the lead screw.

Out of the box it is not compatible with ender 3 series as a part of it rubs against the z screw, had to file it down a little bit.It works great for the function it is suppose to do, minimal filament slippages.

Easy to install. Good precision extruder with dual gear

Great except for a missing bearing 😅Replacement bearing is mr85zz, if you can't find then print another body housing with larger bearing dia and 5mm shaft dia

Works great with Ender 3v2, There was "0" documentation in the package so had to figure it out hence the 1 star less in the review. To be fair it is a drop in replacement for the stock setup.Pros: Filament deformation is minimal, no bite mark leading to better retractions 3:1 gearing increases the "push" on the filament, consistent flow rateCons: Changing filament is a bit of hassle, need to remove the bowden tube to cleanly extract the filament (not as simple as the stock) Need to figure it yourself, lack of documentation (the extra bracket had be stumped)

Beautiful product. Holds the filament beautifully. Used it on my enter 3 and it has taken care of the nasty stock extruder which was a pain to put filament through.The e steps need to be adjusted in the printer to about 420 mm.Beware- comes with almost no manual and guidance. So only buy it if you are mechanically sound and are atleast avg level of diy!Cheers. Enjoy your extruder. It’s a peace of beauty once it’s calibrated well.