Like I mentioned in josh's post I've gotten interested in 3d printing. Rather than stealing his thread I made a new one.

So my question is, "What do I need to know before I start 3D Printing?". I think I zero'ed in on the soliddoodle 2 but I still don't know what I need to know.

For example, What are the different parts of a printer? What do I need o know to run one? What are some notes about the software? What's the difference between pla and abs?

Thanks for any info people post.

Tech