The cheapest bi-metal hotend which is a drop-in replacement for the Ender 6 is the Mellow NF Smart. I even wrote a BIQU H2 installation guide for Ender 6, which should make the entire process easier. I chose to install the BIQU H2 extruder on my Ender 6 because it’s one of the lightest all-in-one extruders available right now, which provides excellent print quality even at high speeds and for me this was the best Ender 6 upgrade to date.

If you want to push this a bit further, then make sure you check my Direct Drive Extruder Buyer’s Guide article where I covered my favorite direct drive extruders currently available.

The stock one is not bad, but you can improve your print quality if you choose to install an extruder with a gear ratio, like a BMG which can be used with the stock bowden setup. There are better extruders out there compared to the stock dual-gear extruder which comes stock on the Ender 6. The magnetic PEI spring steel sheet can be bought from the following websites: 5 mm on the side won’t really cause any issues. The correct size for the Ender 6 is 290×290 mm but I plan to install a 300×300 mm plate I have as a spare. I previously reviewed the Energetic PEI sheet which worked well on all of my printers.

V slot wheel for creality 3d printers