The parts were printed with PLA at a layer height of 0.25 mm video at https://youtu.be/xMVE7-IOp78 Beside the 3d printed parts you will need: aluminium strip 10 X 2 X 304 mm aluminium strip 10 X 2 X 317 mm aluminium L shaped profile 10 X 10 X 1 X 200 mm steel strip 30 X 2 X 169 mm M3 rod 188mm aprox 1700 mm of strong thread (ie dynama 13kg) 5 brass pulleys 6 X1.7 mm knife 81 mm (wall paper scraper knife) about 10 M2 screws about 8 m2 nuts 4 m3 screws some iron wire 1.2 mm servo (ie hobbyking 9225000012) microswitches and electronic parts