Leveling system for 3D printer Uncia One of the most important aspects before you start printing, is the leveling of the printer. When operating a liquid resin, this will automatically level and we must ensure at all times maintain the parallelism between the base plate construction, the projector and the surface of the resin. You can bend the base building to level with the resin, but you will not get good results because the car will not run perpendicularly. Make sure you have on hand a good bubble leveler. https://www.youtube.com/watch?v=vRaSqutYaf8&feature=youtu.be