I have been solo running quite a successful 3d printing, scanning and modeling business for 2 years now. I mostly do b2b on demand stuff. I dont print or sell articulating dragons, i go for reverse engineering, product development and similar, big risk/ big buck projects. What are some tips that you can give me on doing this type of business. Like, do you offer warranty on your parts, do you bother explaining why something wont work when printed compared to injection moulding, what do you do when something that you printed breaks early on...