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Sean Bernstein

Sean Bernstein

Aug 12, 2026

AustinHOST
24:21
Mm-hmm
24:21
... powder's being wiped in every, it's, it's, it's all the way across.
24:24
So it's like, okay, um, when it does the hatching, right, how fast does it move? When does the laser start to slow down before it hits the stop to then turn? When it turns, if it's turning towards the outer skin, what's the space between it and the outer contour? What's the hatch spacing? What's the hatch angle? What's the power curve? What's the kinematic, uh, accel- like, all these levers, and it took decades to be able to get the 1,700 parameters down to about 80 to 90 parameters that are actually Pretty, like, macro movements for adjusting, uh, you know, your porosity, your tensile strength.
25:03
Um, there's a lot of, uh, thermal considerations, 'cause you're creating a m- a molten pool of titanium or Inconel, and then it's rapidly cooling.
25:11
Well, what does that do for the crystalline structure when it's cooling?

44 MINS LATER

AustinHOST
69:31
Yeah, I can do this.
69:32
Yeah.
69:32
I mean, that's the thing.

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