The culmination of about 3 months (total time - on and off) of testing and analyzing.
I’ve managed to greatly improve the cooling of the e3d v6 hotend, more specifically – the upper part of the heatbreak that connects to the heatsink.
This is even compared to my previous endeavor ( https://www.thingiverse.com/thing:2769783 ), and improves/reduces any jamming that may occur due to heat-creep and also reduces retraction distance (which, for me, has greatly reduced stringing).
i’ve done this by optimizing the cone shape and angles of air flow, as well as the internal shape of the hotend holder.
This was all done “old school iterating” by printing and testing different configurations and documenting and measuring trends and differences to find the optimal configuration.
But I still think there’s room for improvement, and would like the help of anyone with cfd experience and/or software (like solidworks or autocad inventor) as my attempted analysis with simflow was a complete failure and a waste of many hours.
Just as with my previous work, the design will be fully open source and available in stl and step formats for anyone who wishes to play with it (as well as the full f3d model). It is also fully compatible with the previous generation of attachment plates, so it’s just a single print of about 8-9 grams and about 40-50minutes.
I am making the painful move from onshape to fusion360, which caused a further delay in finishing this design, so if anyone here knows how I can share the full design online (as with onshape), instead of just posting the f3d file - that would also be highly appreciated.
in case anyone is interested - full details of how the analysis/comparison was conducted are on the thingiverse page, as well as the model itself if anyone is interested in conducting their own tests (for validation or use), or helping out with optimizing air flow.