Robot drawing on wall

I would like to build robot drawing on wall or wall plotter. I want to if anyone has build one that could share with me. I have iduino and was not sure it it will work or not. I was thinking to get this stepping motor driver from this http://www.ebay.com/itm/2pcs-DC-5V-Stepper-Motor-ULN2003-Driver-Test-Module-Board-28BYJ-48-for-Arduino/221268196761?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D163%26meid%3D1850073194759818658%26pid%3D100005%26prg%3D1088%26rk%3D1%26rkt%3D4%26sd%3D231048748653%26

I wasn't sure if this strong enough to do the job. Also I would like to use g code or cad then download on arduino to draw on it. Can some give idea on this?

Reid

Check out this instructable.

Or this one:

some possible ideas

http://www.youtube.com/results?search_query=arduino+drawing&oq=arduino+dra&gs_l=youtube.1.2.0l3.109026.110177.0.115794.3.3.0.0.0.0.142.330.1j2.3.0...0.0...1ac.1.11.youtube.usBBrEDcNMk