Hello,I’ve had some exposure to 3D Printing, but I’m still very fresh and looking to get a little more involved. I’m not sure if I’ll be buying a printer at this point, but I was considering using a service to toss out a few prototypes.Is there a good guide that I could read to get more in-depth information about different processes or materials being used in printing?Thanks again. http://ift.tt/2xeSAhl