I can’t paint. Maybe a barn door, but painting a printed model would just make a mess. (Actually I’d make a mess of painting a barn door as well.)
So I’ve worked out a way to ‘paint’ directly on the printer.
Unless you’re a Brit and you have a mutt called Jack then the stl files won’t do you much good. If anybody is interested in this please give me a shout and I’ll explain how I did it.
Full disclosure. This was my first success and it was printed on my Ender 3; it needs perfect levelling and adhesion to work and I haven’t quite got there yet on the SM. Working on it!