My Digitac pal Uwe Reisinger could not be stopped to help me with the pen for the public presentation. Lasers are way too dangerous to expose the radiation publicly. Therefore he built a penholder head which will be connected instead of the laser module....
Hardware - Keep in mind that this is not the main part of the project. It is simply an easy to make testing device for the software. Everyone and their cousin has built a little plotter out of optical drive mechanisms, so it's nothing too exciting. On...