V6 Nozzle Kit for 3D Printer Extruder Head

1. Reduced radiator length, thickness, and diameter (shorter length helps increase hot end stability), while increasing the number of heat sinks. This reduces hot end weight while providing better heat dissipation and stability.

2. Replaced the bulky external rotating aerodynamic connector with a built-in pipe clip to further reduce weight and hot end length. This also allows the feed tube to be inserted deeper into the hot end for more powerful feeding (pneumatic connectors only allow short feed tubes, often leading to feeding issues).

3. Improved original heating block for a more concise and practical appearance. The contact between the heating tube, thermistor, and aluminum is more complete, making temperature control more precise and effective.