Choose the appropriate firmware for your electronics: * {{:marlin_x1.zip|Marlin RC2 for X1 (Vanilla, Green, Mini)}} * {{:marlin_x3_single.zip|Marlin RC2 for X3 with single extruder (X3 upgrade)}} * {{:marlin_x3.zip|Marlin RC2 for X3 with dual extruder (Bukobot Duo)}}