I wonder if it is possible to design a printer where nothing moves apart from lasers. If the resin cures on light intensity (which I believe it does), is it theoretically possible to have say two or three focussed laser beams which print the object in situ, firing through the resin. So that the intensity at the focal point will cure the resin and not anywhere along the beams axes. Of course, to avoid the need for refractive corrections, the lasers would ideally be in the resin. Just a thought. No need for drips at all.