Yes, i would also like to see your machine on video. How ingenious! I'm sure you know that Dali experimented with painting 3d. I bet he did 2 separate drawings. So do you squeeze the pens together in real time for closer lines? Have you experimented with software to do this and are you interested in that? thank you
3D conversions of Escher and Escher-style drawings have been attempted by others too. But they don't really work, do they? In 2D the brain can be fooled that something is in two places at once in space, forward and backward. But when doing a 3D conversion you choose for the viewer one or the other, and then it is set it stone.