Micro Swiss Heater Block Upgrade with Silicone Sock for CR10 / Ender 2 / Ender 3 / ANET A8 Printers MK7, MK8, MK9 Hotends

Its a direct replacement for the Microswiss unit but be mindful that the threads for both the nozzle and the heater rod can strip really easily. Thats actually why I needed to replace it, the threads of the nozzle stripped out and it was ruined.

I stripped the Allen screws on my previous microswiss.. this replaced the nozzle without having to replace the entire hot end. Good part.

This heater block is not fully compatible with a standard Ender 3 heat sink. The photo shows my old healer black which clearly has two screw holes on either side of the screw in for the heat sink. These two screws go into the heat sink and secure the heater block from rotating. This product DOES NOT have these two screw holes, so I returned this product and just got an entirely new assembly and successfully replaced it. Please be careful if you have a stock Ender 3. I dont know the situation on the V2, Pro, etc.

Just looking at it, you can tell its better than the cheap Chinese made heater blocks you get in a 5 pack for a couple bucks. The heater block is machined well, the threads are all clean and burr free, and it does a much better job holding in the heater cartridge than the single set screw style heater block that came with my Anet A8. The printer seems to have an easier time maintaining nozzle temperature. I dont know how much of that is due to the better design, or the fact that this comes with a silicone sock, but either way Im happy with my purchase.

I didnt realize this does not have holes for the two bolts that stabilize the block on the Ender 3 V2. Now I may have to hold the block while changing nozzles, which will be tricky with the v2 fan shroud. I may have to send this back.

Perfect for what I needed and way cheaper than buying a full new hot end

This item installed easily and works fine. I am very satisfied with this product.

Bad quality the thread to screw the nozzle was messed up

In my old heater block I had stripped the screws so I orrded this one since I saw it has stainless steel screws but I was dissapointed to find that it comes with the same cheap screws. Besides that it works well though.

Am sure this heater block will work just fine, I have never had any issues with Micro Swiss products. I dont like packages, that have been cut open. You never know what has been taken out or put into it.