[sdiy] CNC for synth DIY?

[Terry Bowman]

> On Feb 20, 2025, at 5:02 AM, Roman Sowa via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> I make lettering with laser engraver. Well, I used to make, as I don't make anything these days. Anyway, turns out that 2.5W LED laser is enough to blank out black anodized aluminium.

I can engrave anodized aluminum business cards with 3W at 30mm/s. Higher power could be used but the results won't be quite as pretty. Most people would never see any difference.


> But it depends where it was anodizes and how. At some point I got black strips of aluminium that was fully resistand to my laser. Literally not a trace left at all.

Could be variation in the thickness of the anodized layer. This happens with pretty much every material so you have to test and test.


Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com

#1: There is no substitute for good tools;

#2: Always use the right tool for the job.

Linn Westcott

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20250220/fc595dc6/attachment.htm>