Summary What? Did you think that self-replicating 3D printers are fully grown when they are born? This made a great avatar for me on Thingiverse when I first started 3D printing with "MacGyvrBot" back in 2013. Instructions Print two sets of baby bot parts using two different colors of ABS. Coat the parts with solvent* to make them strong, sand off flanges and rough spots, then coat again and sand again. Make sure all the parts fit together, then assemble two-colored baby bots and solvent-bond the parts. Sand again to make smooth joints and coat with solvent again for a glossy finish. Drill tiny holes and use pieces of extruded filament to go from the spool to the extruder. *WARNING: -Use CAUTION during solvent bonding! -Use solvent with MEK (methyl ethyl keytone) such as Oatey cleaner (yellow label white can) made for ABS plumbing pipe (or use acetone or superglue). -Work in well-ventilated area. -Use eye protection. -The solvent dissolves many things, and the wet plastic stains whatever it touches! -Use latex NOT vinyl gloves! -Use aluminum foil on work surface! -The solvent can also be used to heal delaminated parts, but BE CAREFUL!