Micro Swiss All Metal Hotend with Slotted Cooling Block for Wanhao i3 w/.4mm Nozzle

This was one of three upgrades to my Duplicator I3 that I would say everyone should do. The difference in print quality has been night and day with this upgrade. I highly recommend it.

Well made but this hot end clogs easily and has been a huge pain. I tried everything from PID tuning, retraction changes. The prints were good when i got it flowing but wouldnt last. Not recommended. I have swapped out to a e3d v6 hot end with no further issues.

Followed the instructions and no matter what I did I could not get the filament to stop oozing. Now Im stuck buying a new extruder.

I prefer PETG filament which requires tempts around 240c or so. Until installing this I had been having to replace the ptfe throat every 3/4 a spool of filament or so due to it gradually swelling which lead to printing and retraction issues. Things have been great since installing this, only downside is its a bit harder to prevent stringing with PETG.

Obvious tool marks and plastic on the nozzle. Tube is full of some sort of cooled filament. I put the nozzle under my microscope and it shows heavy wear, gashes and pitting. This hotend has had quite a bit of use. If you are going to sell used stuff please advertise it as used. Will be returning.

It doesnt work. The filament (1.75mm) will not fit into the whole with it. I plan to return it.

Works Great! I wont spend a lot of time talking about it because a lot people have already done so. I will stay that I just installed this kit on my Wanhao i3 V2. and everything is working like a charm.

Quick and easy to install. Quality seems very good. No more worries about cooking the stock plastic tube.

Buy this kit. But the hotend WITH the slotted block if you have a maker select v2 and want to upgrade it. Dont slack and buy just the hotend without the block, it ends up being a mess with having to use thermal paste and all to fit in the original block. This makes it so much easier and it all works perfectly together. Very easy to install, just be SUPER careful with the heater core and thermistor wires when you are messing with the hot end, they are brittle and can break without really taking care of them. Since installing this, I have had no clogs and it has been perfect. I did have some issues at the beginning trying to overheat the filament and then again when I plugged in the wrong fans so my extruder was getting super hot and melting everything before it could print. So watch out for human error. Machine error though, no problems. I recommend this as one of the must-have mods of this 3d printer. That along with z-brace mod, the power board issue mod, and a glass bed covered in pei film and I am good to go!

Im only about 30 minutes into a print with this hotend, but so far it has solved all of my underextrusion issues.