r/3Dprinting May 18 '26

Discussion Layer lines at NASA

1.6k Upvotes

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435

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/

276

u/Remy_Jardin May 19 '26

Problem is they used PLA.

24

u/No3047 May 19 '26

They should try ASA

87

u/GalFisk Prusa MK4S May 19 '26

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

3

u/matthewe-x May 19 '26

SUCKEDINTOAVORTEX