Hey, I've been thinking of a waterblock design for some time now and I just got around to making it in 3D. The main idea is that the tilted inlet barb will lead to a higher flow rate. The pins right after the water comes in would (hopefully) push the new water to the walls of the grooves and push the thin layer away. I don't know if I would need more pins than this to be effective at all, but this is just the basic design. The top of the waterblock will probably be lexan or whatever type of plastic that would work the best. Do you know if it would be possible to cut the top at an angle like I have it on my model? Comments, criticism, suggestions, etc. are welcome.