Watertight prints for high pressure environments  

RE: Watertight prints for high pressure environments

An alternative to this that is still 3D printed is using photosensitive resin from an MSLA or SLA printer. If you know the compressive properties, then you can get a crush depth. Check out this paper on printing housings. https://ieeexplore.ieee.org/document/9977042. Similar concept can be applied to end caps. https://www.sciencedirect.com/science/article/pii/S2468067221000699  

I HAVE A SIMILAR SITUATION

Hello, I'm in a very similar situation with you, I need to make a turbine rotor that can withstand up to 6 bar, but you said that PP is flexible, could you discuss this a little?

RE: Watertight prints for high pressure environments

As someone else necroed this thread, I wonder if the new scarf joints and/or staggered inner seams would help reduce/eliminate any leaking at seams. I haven't used scarf joints yet, but playing around with a simple cylinder and the scarf joint settings I see that you can have a scarf joint only on the external perimeter or all perimeters. And staggering the seams also seems to work on scarf joints.

Not having printed anything with scarf joints yet makes me wonder if they will be any more or less water resistant than regular seams.