@Jonathan_Hurst was nice enough to add these pictures of the dura-gem nozzle, but they were added to the existing album. Wanted to repost them for more exposure, because of how interesting this is. He claimed that the plastic didn’t stick to the gem, and…apparently he wasn’t exaggerating! Very interesting nozzle indeed. Original conversation here: https://plus.google.com/110195651396255620474/posts/BhwW1om31ig
I think it’s a interesting idea, and worth a try.
I also found the tipp in the original threat importend.
We should take a close look in the waterjet technik. Maybe we find parts we can adopt