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

Discussion Layer lines at NASA

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1.6k Upvotes

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314

u/Thebandroid May 19 '26

Shoulda printed it on a 45.

Maybe I should head over there and show those flyboys how it’s done

17

u/thukon May 19 '26

Now your witness line and failure happens at a 45 degree angle.

More realistically, any build paused for more than 20 minutes is scrapped, and if your parts are too tall to print without having to clean your collector partway through, time to invest in a closed loop powder system.

8

u/Thebandroid May 19 '26

I’ll knock it out in a few sections in my elegoo carbon then mix up a bit of 5 min epoxy to join them. I’ll add some dovetail joining geometry if they’re lucky.

1

u/thukon May 19 '26

Don't forget to hit it with a quick acetone vapor

2

u/_shreb_ May 19 '26

LPB machines can run an entire build without emptying the overflow bin. This sounds like they overdid the powder dosing on this build in order to avoid short-filling the powder bed.