Five months later, I finally got around to bringing up my four channel driver board so I can control X and Y at the same time on these. With a hole in the middle of the PCB, this seems like it could actually work as a back-illuminated microscope stage. Not as good as an OpenFlexure probably? But it's just a PCB, simple 3D printed part, and $3 worth of magnets (well, and drive electronics!). The software driving it is #rustlang, of course!
