SO.... This little project took a lot more fiddling than one would think but I have finally succeeded at 3D printing a Solenoid housing. Made in Nylon (PA) for fuel resistance the Print parameters needed much tweaking to get a liquid tight seal and tolerances for the housing bore - But its now repeatable on higher end printers I would think.

This is just an offshoot of a bigger trial to print an "all in one" pulse pump and fuel control "block" - getting close on that one too but fighting getting the unit to seal up tight. Have a working unit but its still a little leaky...