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Etching small patterns in Glass

Etching small patterns in Glass on HackerTube: recommended by 4 Hacker News commenters across 3 separate months, 2021–2024.

Huygens Optics

demo · intermediate · evergreen

Open on YouTube

Huygens Optics experiments with etching tiny patterns in glass, covering hydrofluoric acid risks, buffered oxide etch, photoresist and chromium masks, and laser-induced etching. It ends with attempts at microscopic Tesla valves.

Why Hacker News recommends it

HN recommends it as a highly informative look at micro-etching glass and the smallest Tesla valves.

people recommended it
4
separate months
3
strong recommendations
0
discussed on HN
2021–2024
“The video on micro etching glass with HF is highly informative on this post...”
— samstave, Mar 2024, in “High-speed microscale 3D printing”

What HN commenters said

4 Hacker News comments link this video. Each one links back to its thread.

samstaveMar 2024Recommends

[link] Seems like it would work beautifully. What would be cool is to make a logic-gate-tesla-valve-micro-hydraulic computer? -- The video on micro etching glass with HF is highly informative on this post... he talks about etching tesla valves at the end... [link] <-- 30 microns long with channel width of 4 microns via etched glass... [link] ▶ this video -- So I wonder what resolution would be possible via the 3d version. What would be really interesting to see with this method would be to make a blend of a spiral-screw with the tesla valves to climb or control vertical rates of flow. --- Since this process can print in ceramics, I wonder if the can effectively make a "super-conductive-nano-wire with spiraling interconnected bucky-ball-shaped lattice of particles"

in “High-speed microscale 3D printing” · View on HN

thrown_22Aug 2022Recommends

I read that, then I saw this guys youtube channel: ▶ this video on the bright side I've found something I have not been desensitized to no matter how many time I've watched it.

in “Perfluorocubane is (as you would expect) weird” · View on HN

osamagirl69Aug 2021Recommends

There is an youtube video[1] by the excellent channel Huygens Optics which goes through trying to make a microscopic tesla valve. The valve does not work as a checkvalve (it is sufficiently small that surface tension and all that work differently than in a macroscopic system), but the author argues that it did satisfy the real goal of being a tesla valve -- which is to look sexy and high tech. [1] ▶ this video

in “Tesla valve” · View on HN

showerstAug 2021Recommends

For a fun visual demonstration, check out nighthawkinlight's video where he runs a flamefront through one -- [link] Also seconding the Huygen's optics video osamagirl69 already posted below -- ▶ this video

in “Tesla valve” · View on HN

Topics & tags

Semiconductors & chip manufacturingChemistryMaterials sciencehydrofluoric acidtesla valvemicrofabricationopticslaser etching