Really liked “ yannickmorand ” concept for the purge shoot, but when I printed it, I didn't see an obvious way the shoot / tube section would attach, as well as it seemed sort of small and restrictive. So loaded the 3MF of the upper section into fusion and made the hole the starting point and from scratch mimicked his profile of the S curve, but made the outlet section about 50 or 60 percent larger than the inlet section to limit catch points, and then made a very small registration lip on the top of the shoot portion that mates with the upper section so it aligns well to be glued either with Super glue or JB weld. And was a good challenge to myself to make a honeycomb pattern on the sides that matched the pattern on the upper section. Never done that before. I have printed them both and the printed fine and fit well, but haven't gotten the glue I need to assemble it yet. 

Let me know if you have any suggestions please.