Snaffles

Dang I was hoping because it wasn't filliment based but UV resin the layering wouldn't be an issue because it was only the tubes I was printing I've bought the fittings so I wasn't going to need to print those but the same issues would probably carry over to anything really the tolerances were so minute but I guess it makes sense here's hoping it eventually does become possible soon it would be pretty sick.

welcome to the Linus Tech Tips forums!
 
you've pretty much nailed the reasons prolly why not.
that and tolerances have to be need to be dead-nuts accurate.
ive tried FDM printing fittings and due to the layering, the tolerances are not clear-cut, mico layers of mico leaks.
the technologies are not there yet for closed system environments like water cooling. but possibly soon.