There is an error in the drawing in the video. The correct drawing can be found at the links below, where you can also download 3D models of the project.

https://www.infoconnector.ru/ustanovka-ekstrudera-biqu-h2-v2-na-enderopodobnye-printery-cr-10-cr10s-cr-10-4s-cr-10-5s-cr-10-mini-cr-20-ender-2-ender-3-ender-3-pro-ender-3-v2

For better thermal conductivity, I lubricated the thermal barrier with MX4 thermal grease (maximum operating temperature 160 degrees). I'm not sure if this is correct. I advise you to use other methods to increase heat transfer.

Hello Friend! Come to my website https://MyHobbyTools.com. There you can find links and reviews about quality hobby products.

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ELECTRONICS
✔ Batteries and Chargers – https://myhobbytools.com/en/e/batteries
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RC
✔ RC Drone Parts – https://myhobbytools.com/en/r/rc-drone-parts
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