"He who marches out of step hears another drum." ~ Ken Kesey
I only said that so he realizes it's not exactly rocket science to get from spots to halftones, but he will need one of these: PS, Corel, or Illy to graduate a color and of course....a RIP, which Ghost is still free and it does work.
I use the toilet as a drying room ...Not sure how your house is set up, but a small bathroom or shower just outside your garage might be the answer.
This is just something to get my feet wet and I thought it'd be fun for a first go at it. It's for my kid, and I'm not concerned about other variables right now other than trying to render decent results. If possible I'd like to pass on the underbase but I assume it's necessary on something like a royal blue shirt color. I'm ok with it looking vintage and I prefer a soft hand, but if the design is going to look totally muted to the point where you can't even see it then an underbase is obviously necessary. And yeah... the look of the design is intentional. I wanted it to look sort of sketched/hand drawn rather then a perfect vector design as it's for my kid. It's a filter in illustrator called roughen.
From what I've read this old IC stuff is not so awesome.