Izgalmas!

Ígéretes

Gladly,

The results look promising, especially that this is the very first try.
I put together a controller for the micro mill i had. Then I added an UV laser to it.

The technology is to cover the part with a thin layer of plastic based color pigment. Then use laser to melt the desired text / shape. If it works out right, then the result should be 99% same look and feel of the original key caps.

Based on the microscope pictures, the main problem is the layer thickness of the pigment. So i'm working on a method to lay down a thinner layer. If i can, i 'd like to avoid the usage of any kind of liquid. But if the problem is the granule size of the current pigment i have, then it's time to dig up the collected parts and finish my ball-mill

Not entirely,

The laser printer uses laser light to charge electrostaticly a wire according to the pixels that need to be printed. Then this charge is transferred to a cylinder where attracts powdered paint / metal oxide mixture and then transfers it to the paper, where it gets melted when the paper goes between heated rollers.

In our process the paint is placed on the destination surface and melted selectively by laser where we want pixels. So in a way it is a bit like the 3D printing technology called SLS.

Not entirely

Thanks for your clarifying explanation about how the laser printers work.

What I mean is... when you think on a laser, it comes to our mind a very high temperature beam... but is the precision not the heat what is important on both processes.

Az a minimum hogy tokeletes legyen.

Valamint a teszt szoveg betui 4-5x akkorak mint a feliratok az Enter gombokon, igy a szemcsesseg meg feltunobb lenne az eredeti betumerettel.

Ha nem jon be ez a modszer, akkor meg van otletem. Aluminium lemezbol stencilt kesziteni a betuknek (lefujni acryl-lal es lezerrel leegetni majd vas-kloriddal kimaratni),
es a stencillel felvinni vagy spray alapu festeket, vagy feher mugyantat.

Az eredeti vetitogepes atalakitas is mukodhetne, csak ahhoz kene vennem egy 80W-os UV lezer dioda fejet, ami azert 50e-nel kezdodik (valamint eleg csak egyszer nem felvenni a vedoszemuveget amikor be van kapcsolva, es tobb latassal kapcsolatos problemam nem lenne)

Elokaptam a vonalzomat, es megmertem a festekpor szemcseit... lasd mellekelt foto (a vonalzo teljes hossza 1mm)
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Az IR lezerem ujnyi vastag fat is atvag, es a szemre ez a kis UV lezer is veszelyes. Viszont amit irtam az fokuszalatlan lezer 'forras', 60x akkora teljesitmennyel.
Tehat mig a most meglevo ket lezerbe specifikusan bele kellene nezni (vagy valami fenyes targyat alatenni ahonnan visszaverodik) ahhoz hogy szem karosodast okozzon, a masikra valoszinu eleg csak rapillantani bekapcsolt allapotban, es mar meg is tortent a baleset.

De mivel most feccoltam bele a golyos malomba es a hozzavalo szurokbe vagy 40e ft-ot, nem fenyeget most az a veszely hogy be akarnek szerezni egy 3. lezert is.

De azert jol nez ki....

Ja, es az elso kepen hatul lathato a golyos malom ami megerkezett kozben.
Persze ez ilyen jatek kategorias, de a celnak megfelel, es amig a tarcsa szitak meg nem erkeznek kinabol, addig ugysincs sok ertelme hasznalni...