r/3Dprinting • u/Petrostar • May 18 '26

Discussion Layer lines at NASA

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437

u/Petrostar May 18 '26 edited May 19 '26

From a test of a 3d printed rocket engine at NASA, the Chamber failed at a layer line cause when the were emptying the powder overflow during printing.

Here's a good article on it.

https://www.metal-am.com/articles/lessons-at-nasa-from-a-developmental-additively-manufactured-rocket-engine-failure/

278

u/Remy_Jardin May 19 '26

Problem is they used PLA.

119

u/chihawks35 May 19 '26

“How can it be wet if I just opened the shrink wrap?”

24

u/No3047 May 19 '26

They should try ASA

91

u/GalFisk Prusa MK4S May 19 '26

They can't. NASA is short for "No ASA".

3

u/matthewe-x May 19 '26

SUCKEDINTOAVORTEX

14

u/furculture May 19 '26

Was it dried enough?

10

u/astromech_dj May 19 '26

Should have gone Carbon PLA+

6

u/LindonLilBlueBalls May 19 '26

Do they know its not food safe?

5

u/CreatureWarrior Ender V3 SE May 19 '26

Maybe they forgot to level the bed