“DIY laser 3d printer by Moritz Walter - video of the first print” http://feedly.com/k/GEBRsM
HAH! This is awesome! Almost exactly what I planned on doing except top-down with the resin floating on salt-water and a leadscrew driven bed. Awesome to see that the stepper-based mirror reflection system works as nicely as it does. I’m going with 1/32 steppers myself, so resolution should be decent.