“gCodeToSVG”
Allows user upload gcode and make stepped grayscale svg images.
To start using it, here is the link:
gCodeToSVG

Can only parse gcode from Ultimaker CURA (free from here:
Ultimaker CURA)

STL2SVGimage

Melt Face model courtesy of David Hagemann
(http://www.thingiverse.com/thing:651829)