Hello, EnduranceRobots.com made a video lesson how to make gcode for engraving using inkscape
Some samples you can download from our web site: http://endurancerobots.com/products/laser-cutters-accessory/gcode-samples-for-engraving-2/
Can be used for WanHao
and for any DIY engraving machine
For more information you can visit our official web-site:
Skype:george.fomitchev
E-mail: gf@endurancerobots.com