2 in 1 Out 3D Printer Single Mixing Printing Head 12V Two-Color Extruder V6 Hotend Kits with Cooling Fan for 0.4mm Nozzle 1.75mm Filament

This unit did not come with the steel balls needed to make it work. Problems it caused: oozing from the sides, and loses pressure. Once they were installed most was while. Remember even on a long Bowden setup the retraction should be 2mm or less, or jamming problems will start to occur.

This mixing nozzle is pure junk. even after tightening everything before installing filament it still leeks around the head and the heat breaks. It would not allow filament to flow fast enough to even start a print. The head is some non-standard thread so don't even think about repacing the head when it becomes jammed. When someone starts crying 'Newbe doesn't know what he is doing', I have be printing for over 2 years on over 5 printers.Stay away from this crap.

This nozzle clogged as soon as I tried to extrude. I have been printing for a couple years now and have had a few different printers. I used this nozzle to attempt an upgrade of one of my printers and it is the WORST nozzle I have ever tried. Would give it ZERO stars if that were an option.

Conforme

Well what a peace off junk this is thay was a big waist of money and time would leave a star if i could