My name is Sebastien, I'm from Quebec / Canada, I'm an engineering student and a hobbyist in electronic circuitry and automation. By some luck I discovered the awesome world of 3D printing this summer and can't wait to get my hands on one of those famous H1.1 of yours

Right now it seems like they are BO I hope you'll get some back in stock soon !!
I'm a complete newbee in 3D printing so I would like some information and a little explanation on the "process" to print something.
Since I prefere to go with the RAMPS/Arduino model, i'd like to know how it works when you want to transfer a 3D model of a piece (Inventor/Solidworks maybe ?) to an arduino code. I read about a software called Slic3r, but I can't figure how it works, I'm kind of lost ...
Thank you in advance and I hope I'll be a new member of the 3d printing soon !!
(forgive me for my mistakes my english is not perfect)