Plotter and HPGL

I'd like if anyone worked with the language HPGL. I`m building a plotter and i want to use the files of orcad to do circuits. Does anybody haves a idea where i can to find a tutorial?

If you do a google search you will find a number of homebuilt plotter projects available - many of these give source code, so you can 'borrow' the HPGL code from them :lol: