Re: Sewing Vinyl
I guess this could be a good first post, I have a upholstery shop and can give some advice on techniques / answer some questions. Work on marine, all canvas projects, build interiors from scratch, etc. as well as automotive.
One of the biggest seems to be machine choice, and the only way of getting decent looking and lasting results (proper thread) is with a true compound feed machine. I personally run a Juki LU-563, they can be found in good shape with table for 1200ish range. To make upholstery in boats look perfect, you need to have foam behind/attached to the vinyl,(not just the foam on the seat) I use 1/2". As well as a backing material on the underside of this foam. This foam makes the finished job look smooth, "clean", hides imperfections with the base foam, etc. The backing material keeps the thread from pulling through the foam which equals disaster. There are 1/2" sew foams out there with all kinds of material on the back. SO when your sewing a seam, you have two layers of vinyl / 1/2" foam / backing material, gets real thick. Getting a home machine to sew this would be impossible. If your not going for perfect results, then you can just sew the vinyl on its own, ditch the foam. The results will suffer, by my standards, which are high mind you. As per thread, buy good thread, don't buy it form a fabric store or something. I run Star Ultra #92, it not expensive and you'll be thanking yourself when your seats don't come apart after a few years.
On the topic of books, well books are kinda useless, you will learn more (at least I did) from taking apart the old and figuring it out. I've only come across one half decent automotive book. All the marine ones I bought where super basic. I've got them kicking around if anyone's interest.
This is very much a skill of learning by doing, and it takes the right eye and a lot of patients. Reason number one why its a one man show at my place. There are alot of hours involved, when its done right, which is why its expensive.
One tip, which I didn't pay much attention to very early on, but should have. Don't template off the old material, start fresh with clean square material. When you need to template shapes and such, I use clear 6mil vapor barrier and a jiffy.
I could go on for days, but if there questions, feel free to ask, i'll try my best to help. Although alot of techniques are hard to explain