Very Computer

Is there anyone out there who can tell me how best to convert graphic images
with half-tones to camera ready copy suitable for silkscreening?

So far I've learned that the silkscreening process won't print half-tone dot
screens much finer than 30 lines per inch. Also, the paint/ink bleeds a lot,
so anything over about 40-60% coverage is the same as filled. At the other
end of the scale, nothing much lighter than a 20% fill will even hold ink.
All this varies further with ink color, fabric color, and the weave density
of the silk.

Back when I had access to a postscript printer I could at least control the
half-tone dot pitch and angle of images I printed out, which was a wonderful
feature. How might I do that with non-postscript printers?

I thank you if you can give me any *part* of the answer!

Be well,

Mike Devour