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YOUTUBE promo code for a 10% discount on your first order of components in our store at the link: https://3d-diy.ru/ What is a Hotend for a 3D printer and what does it consist of? How to choose? What are the differences? In the second part, we will talk about hotends. We will tell you about radiators, heating blocks, thermal barriers and nozzles. ➤ Watch the first part at the link: • Extruders for 3D printers. Part 1: ... Products: ➤ Link to 3D printer extruders and accessories: https://3d-diy.ru/catalog/extruder-3d... Contents: 00:00 - Introduction 00:30 - What is a hotend? 04:07 - Cooling 06:01 - Thermal barrier 09:30 - Heating block 11:22 - Heating element 12:54 - Thermistor or thermocouple 13:52 - Nozzles 15:47 - Results 16:23 - Competition! ★ Our catalog of 3D printers: https://3d-diy.ru/3d-printery/ ★ Accessories for 3D printers, Arduino and CNC: https://3d-diy.ru/catalog/ ═════════════════════════════════════ Our official website: https://3d-diy.ru/ Vkontakte group: https://vk.com/3d_diy Instagram: / 3d_diy