https://www.youtube.com/watch?v=s3iyZzqiFXQ&feature=youtu.be
So cool, hope I have some time to build my cnc mill in the near future 
+Peter van der Walt: You can add line numbers to github links, so it automatically jumps to that lines and even highlights them: https://github.com/openhardwarecoza/LaserWeb/blob/master/i/main.js#L274-L653