Hey guys,
Recently i saw a drawing robot made using arduino.
I wanted to ask your opinion about how hard will it be to make this a project, and where can i find some material to give me a direction to start.
Example:

 

The difficulty of the project will depend on your experience with regards to setting hardware and software. The video has a detailed explanation about how to make it. Also, you can check this link which has other details as source codes.

http://www.instructables.com/id/XY-Plotter-Drawing-Robot-Arduino-Polargraph/