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

The slotted cooling block I received with this upgrade kit was unusable. The holes for mounting the heatsink and fan are in the wrong location. ( see attached picture) . I found this out after taking my hot end apart and starting the upgrade.

Returned- did not fit Creality cr10

good

I will say that I trust the quality of the company, but I just had a bad experience with the product. First, the steel heat break is rounded with two flat sides that can fit a small wrench. The problem is that its very easy to strip the sides and make the throat near-impossible to remove without using something with teeth- which would cause more damage. This could be fixed better if the break was shaped like a full bolt. Second, the slotted cold block is a great idea, except that the way its made makes it impossible to adjust the orientation of the heater block. In order to install it on a Wanhao-style machine (MS v2.1), you have to install the throat first, and tighten it since you cant get to that bolt once its in the carriage. Then, install it onto the carriage, since you cant get to those bolts when the heater block is there. Then properly install the heater block with the nozzle. The last part makes it incredibly difficult to both properly tighten the nozzle and have the heater block oriented the right way for the heater and thermistor. Because of that, my nozzle started to leak PETG, which basically glued the nozzle and heat break together in the heater block, so I ended up losing nearly my whole hotend. These guys are pretty expensive to just lose.

Technically this was the wrong kit for my dreamer NX but everything minus the cooling block worked fine. If you have a dreamer nx get this instead: https://www.amazon.com/dp/B01C3HEQZC/?coliid=IIRBH4GGJLNWZ&colid=2DZL1KU0GVJZI&psc=1&ref_=lv_ov_lig_dp_it But as others have said, follow the instructions to the letter and make the adjustments as needed. Im getting good prints with 0 issues.

My only regret is not buying this sooner. Printing 2-3x faster and with fewer issues. You will have to make some adjustments in your slicer - totally worth it in my book.

This took me some time to dial in my settings to account for the change from the stock hot end, but once I adjusted retraction and temp, this hot end is completely worth it. I havent had a jam since.

Made a huge difference on my i3 clone. I did have to up the temp a bit but it was nice to not have to deal with the plastic tube anymore.

best upgrade for the wanhao duplicator i3 plus!

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!