- This #Prusa i3 rebuild will be epic! Using the original Graber MDF frame with a lighter Y axis, faster Z axis, silent steppers, high flow extruder, 24V power, 32-bit Marlin, input shaping, graphical LCD. I want to see what @marlinfw.org 2.1.3 can do on this lightweight classic from 2013. #3DprintingMar 22, 2025 19:33