LEGO® Mindstorms EV3 plotter drawing a Hilbert Curve

This is my LEGO® plotter that I’m designing. This is an early experiment with it to draw a Hilbert curve. Programming the curve in the EV Home Edition software itself was a challenge as it’s not possible to use recursion. Instead I implemented a simple stack-type system to allow the use of a “while“ loop. When completed, full details about it will appear along with my other LEGO® creations at