And now for three questions with Rafer Roberts, the master of Plastic Farm.

Your primary project, Plastic Farm, involves some pretty dark stuff (i.e all involving "the life of a man named Chester and his slow descent into complete insanity"). What gives you inspiration for your material?
Mostly it all comes from the space between what humanity could be and my hatred and disgust of what humanity actually is. It is a wasted potential, but it is still a potential that could be reached and as such remains as an energy source that can be tapped into. This energy can be used in order to create art of many stripes, or more accurately, to fuel the kinetic shift that will carry humankind into a new reality. My hope is that art taken from, or borrowed from this Waste Space can act as a primary ignition to spark the engines of human potential and get this caravan moving forward.
I don't know what the end result of human kind should be, nor (though some would argue this point) am I egotistical to specify what this pinnacle of human reality should be. I will say though that we seem to moving further and further away from it and we have no one to blame for this but ourselves.
Making Plastic Farm keeps me from screaming at people on the street.

Since you both write and illustrate most of your stories, what's your story-making process from conception to illustration? How do you fit it all together? Is there one set formula?
There is no set formula, though looking at my recent productivity, I should probably adopt one.
I have a 30 or 40 page document that plots out the major parts of Plastic Farm from beginning to end. Some of it is highly detailed and includes dialogue and scene directions and some of it is nothing more than minor reminders of what goes where and when. It's open enough that I can add or subtract from the story with relative ease, which is great for me since I tend to allow whatever I am feeling to influence my art at the exact time of creation.
I usually start in my sketchbook, thumb-nailing out the pages which I'll then pencil out for real. I don't normally write out full scripts ahead of time so most of the dialogue is written during either the thumb-nailing process or during the pencilling stage. I am currently working on three pages where I haven't written any of the dialogue yet. I'm a little all over the place there. I ink mostly using real brushes and crow quill for detail work, though I've been moving more towards mechanical pens for backgrounds to give them a bit more contrast with the figures.
I also have my studio setup so I can watch television or listen to the 200 gigs of music on my computer. I cannot draw in silence.

If you could travel through time to any moment in history and then write a comic about it, what would it be and why?
I would go about 25 years into the future and write some sort of sci-fi murder mystery incorporating all of the future tech, politics, and future spirituality that I saw. Then I would sit back and wait for that future to happen and be heralded as one of the most prophetic writers of all time.
And one day, before my predicted future came to be, I would answer three questions about this comic I made. And lo, the name of that comic would be Plastic Farm.