Hi, im currently building a machine and would like to know what programs there are for generating g codes, will be using solidworks to create the 3d or 2.5d desigs, and save that as a .stl i believe? and then use the program to generate the gcode. is this correct or ca anyone else recommend cheaper or better programs? also the program is from an american site and cant seem to find a english site selling, so will i need to buy it from america? cheers