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Thank you. I think a similar process could be used to 3D print on acrylic for nameplates, logos, and other signs. I believe I posted a video of drawing with the extruder replaced with a pen for you want to check that out.

I'll check it out :)
At that point your nearly turning the 3D printer into a volume restricted robotic arm.

Hmm... now I'm imagining spider bots crawling along glass buildings slightly scratching their glass to make a rough surface, then 3D printing a competitors logo onto a building 😅

True but it's another tool in the tool box for what a 3D printer can do.

I could see the future going in that direction. AI will be of great assistance to make robotics that elegant.