What is stereolithography 3D printing?

Our special guest, Chris, wonders what stereolithography 3D printing is, and Linh and Dimitri try their best to explain it… slowly…

References:

• https://en.wikipedia.org/wiki/3D_printing
• https://en.wikipedia.org/wiki/Stereolithography
• https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/

Errata:

• The liquid used in stereolithography 3D printing is resin, which is cured by a UV laser.
• The resin is not always colored.
• The laser isn’t really heating up the plate that acts as the base, it is curing the resin in order to harden the liquid.
• It doesn’t seem like resin 3D printing needs to have structural support.