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A comment on Making 3D printing truly 3D. Parent comment

Re:Making 3D printing truly 3D by blenderdt on Tuesday April 26, 2022 @04:14PM (#31172592)
Ah yes. Zbrozek posted a better link in this thread.

Two lasers cross and at that point the nanoparticles in the resin help to focus the light and cure the resin at that point.

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Re:Making 3D printing truly 3D by ncmncm on Tuesday April 26, 2022 @04:28PM (#31172746)
No. They have a single laser source that converges at the point.

It doesn't seem to say whether they move the laser source in 3D near the tank, or just in 2D and vary its focal distance.

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