Making a ROMAN CROSSBOW - completely handmade - MANUBALLISTA

maple Cook the maple planks with hot steam until they're soft. Let dry for 2 days. Let the hide glue soak in water for 20 minutes.... .... and melt in a hot water bath. Hot stones as a heat source. The pieces of wood must be heated for gluing. Let dry for 1 day. Leather padding for the string bearing. The heavily stressed areas are wrapped with string. Sheet steel 1mm (0.04 inch) Apply flux and silver solder. Melting point 670°C (1238 °F) Oak board Clean interior surfaces before gluing. All gluing is carried out with hide glue. Bronze sheet 1mm (0.04 inch) Blacken with candle soot.... .... and mark it with a rawhide template. Charcoal It serves as a filler in hide glue. Steel rod Please like, subscribe and comment! For strength, wrap the wood with linen string and glue. 2000 years ago in Roman times, these parts were also made of bronze (more durable but also heavier than wood). The bronze sheet with the holes also serves as a sliding surface for the round piece of wood. 3 layers of natural oil protect against moisture. Hemp rope 8mm (0.3 inch) of good quality. Linen yarn twisted by myself. The bowstring is tear-resistant up to around 550 kg (approx. 1200 pounds) Oak wood Heating the wooden parts before gluing. Sheet steel 2mm (0.08 inch) Rivet sheet steel and brass with copper. leather The dark wood is the hardest and toughest wood I have found in my lumber yard. Bronze sheet 1mm (0.04 inch) Bolts can be shot with 2 or 3 feather. Yew wood.... .... it can be bent very well with steam. Sheet steel 1.5mm (0.06 inch) Braze with silver solder. Yew wood Lubricate with lard. Hemp rope 5mm (0.2 inch) The crank gear ratio is 1:20. Cocking the crossbow by turning the round wooden discs. Secure with the metal pin. 300 pounds (136kg).