I would like to let some of the folks on this site know that there is a vector drawing program that you can down load for free off the web. I have been using it for several years now and it works great for taking your orginal drawing and turning it into a vector drawing that can be flipped, resized duplicated and many other things. I do not use it to draw with so I do not know how it works in that regards. The program is called Inkscape, just type it in and down load it. If you need some guidence on how to get your work into the program there is a help window that will walk you through all the steps. Remember to change the drawing into a vector first before you try to print it, size it or anything else.
Doug
Doug