This part is completely based on the MK3S/+ extruder. I have built the model on Prusa's "extruder-body_R6". This model can easily replace the original part and is much more stable and durable compared to other models.
Version 2 offers significant improvements compared to Version 1. It is in almost every point, a significant upgrade.
Version 2 brings improved aerodynamic capabilities, thereby improving the cooling performance and ensuring a minimum drag. Because of the improved dimensions and tolerances it's now better adapted to the Dragon Hotend compared to Version 1.
Version 3 is a major improvement in terms of stability, Airflow around the Heatsink and other small improvements. I also used this time a higher resolution model to increase the quality.
Version 2 had a problem with the stability of the block. It could easily break off and was not suitable for changing nozzles. The Extrusion couldn't break off anymore just because changing the nozzle.
The author remixed this model.
In my remix I added a perfect fitting block into the cooling area that goes into the Dragon hotend cooler and hold it very tight in place. Also is the block helping to cool the actual Heatsink.