Hey, do you have CAD experience with 3D objects? If so you are half way there. There are some positions available out there, mostly in manufacturing, so experience in the field is probably needed. In the next 3-4 years I envision a huge increase in 3D printing job growth. I would recommend buying a printer if you don't already have one to at least familiarize yourself with how they work. Having said this, the printers within a manufacturing atmosphere are entirely different then those you use at hope. Goodluck