http://machinetouch.appspot.com/svgEngraver.py

http://kalyaev.com/2010/20100402/tut01/tut01.html

==== PCB milling ====

http://reprap.org/wiki/PCB_Milling
http://replicat.org/generators

http://www.heeks.net/

http://www.probotix.com/cnc_software/

http://www.scorchworks.com/Fengrave/fengrave.html

==== Priprava podkladu ====
http://www.alessandrofrancesconi.it/projects/morphop/