Been studying the A-6 / A-7 Redstone engines. Recalled that Motat has one stripped down on display. Can clearly see the quality of the welds.
Thinking a lot about 3D printers and SLS technology in general. Have so many ideas right now about how this technology should evolve. Hard to write them all down clearly.
Here is a quick picture of the Redstone chamber I have Modeled in Solidworks. Sadly to 3D print it is still going to cost about 1200 dollars.
To get ahead with all these projects really need to solve the 3D printing problem in a proper easy non Academia cheap kind of way.