Originally Posted by
1967brutus
II keep butting my head against the wall of the need for these things to be made to fit a particular engine and I don't know how to make it more versatile (how to ensure that the .45 size will actually be able to be fitted to ALL .45 engines, etc...)
Have a look here:
Perry Pumps - Carbs
One thing i have no experience with is resin 3d printing. The required accuracy is trivial for those. Its more the question of the cured part is fuel proof or not.
Have a look at this service
https://www.pcbway.com/rapid-prototyping/.
There circuit boards are good but have not used there other services yet.