making money from 3d printing?

[Haswell]

Well, you can get away with .2 or even .3mm. If you don't mind doing fine extra work such as sanding or painting. It is also a good alternative if you want to stay away from acetone vapor bath.
I myself avoid acetone as much as I can when I got intoxicated.

I'm not opposed to post processing at all. If I get enough interest in my initial products I am definitely going to buy one. I can sell art and functional products as well. I don't really even want to make a business out of it I am just looking to recover the cost of my printer.