Great question. I just know I had seen glass printing before and maybe it’s the lower temperature or whatever that is the breakthrough but it isn’t new in practice.

First time for them

https://oxman.com/projects/glass-3d-printing

https://nobula3d.com/

Sorry for the link but it’s glass printing 4 years ago

https://www.reddit.com/r/3Dprinting/comments/mv6j9n/my_molten_glass_3d_printer_5mm_layers_and_the/

Age verification requirements.

You’re making demands and contribute nothing, not like there would be anything lost without you.

And this is your only post. You happen to post it in three different places, what do you bring other than this demand?