Hi, now the info for rework, I hope you have experience in electronics and mechanics. partlist: Arduino mega 2560 Ramps 1.4 5 stepperdriver: drv8825 or 4988 or tmc2100 Powersupply 12V 14A Powersupply 24V 14A SSR input 3-32V 25A relais Heatbed MK3 Build Tak 3D print surface Cable and connectors, too...