Hi guys, first let me introduce my self

My name is Maxime I'm 23 years old, I'm a machinist and I'm studying mecanical engineering.
I have been interested in 3d printers since many years but I never took the time to dig into it.

Lately I have seen a very interesting kit, yes I am talking about the Prusa i3.
It looks like a nice product to begin with, and I am interested to buy one.

I am familiar with CNC programming, doing set ups and all that kind of stuff but 3d printer is new to me.
I have some questions that I have not been able to find the answers.

ie: how is the programming done and why the heat table

Is there a good website out there you guys can recommend me ?

I know every printers are different but some specific general information would be nice... which is hard to find

Thanks have a good one