If you have Grub screw as shown in below photo, you have older K1 (2023), if you don't see grub screw you have newer K1C/K1 Max (2024) hotend. Please ensure you comptaiblity before purchasing spares.
Micro Swiss Guide: (Note: Micro Swiss now include mounting hardware for both version in M3101 hotend)
Video [Note: Audio is in CN]
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