Designing a mount for an amplifier board is pretty dull so I added a mathematical rose to it to make it a little bit more interesting.
@shauki Hi Shauki, if I understand correctly you want me to engrave two or more letters in an STL? Sure I can do that for you. Can you confirm that I understand correctly?
I see. OpenSCAD is easy to learn certainly if you know even the slightest bit of programming. Best stick to the documentation and you’ll be up and running in no time: http://www.openscad.org/documentation.html.
If you rather use video tutorials I can recommend this series: https://www.youtube.com/playlist?list=PLkRx3bM9e3yDK0NlFz-GomPfkst1ofT5y