I just got a request from someone who wants to CNC a front panel for his Muffsy MC Head Amp, and he wanted to use the logo and the font that are on the printed circuit boards.
OSIFONT - The CAD Font
The font used on the PCB is the built-in vector font in Eagle, which is proprietary. The Eagle font is really similar to the "official" CAD font OSIFONT. Which is, I'm sorry to say, proprietary.
Luckily, Github user hikikomori82 has made an open source variant of OSIFONT:
The "Muffsyfont" - The OSIFONT to a T
I thought the lower case "t" looked wrong, so I changed it, and now it's the Muffsyfont.
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And Finally the Logo
The logo is a bit easier though, I can share that with anyone. And by virtue of placing it on this site, it becomes open source as well.
Download the large PNG with transparent background here.