I have just purchased a used i3 Mega S. I need someone to point me in the right direction for a total newb. I have autocad experience, and desktop laser experience, but know nothing about a 3d printer. I'm sure there is a place for a complete greenhorn like me to learn the ropes! Thanks
If you have specific questions there are helpful people in these forums, as well as a plethora of information on YouTube, much of it not tailored specifically to the i3 mega s, but still applicable. 3D Printing Nerd, Maker's Muse, Thomas Sanladerer, and Chep are all decent channels in my opinion.
Yes, definitely youtube :) Those guys will point you towards problem that you are not yet aware of but that might become a problem for you in the future.
Apart from that: Start printing some stuff and then google your problem... Like "Print not sticking to bed", "corners of 3d print are lifting", rough edges, what layer hight should i use, what material should i use for what occasion, ...