Ugears launches its dinosaur automaton collection with the most fearsome predator to ever walk the earth: the Tyrannosaurus Rex. This mechanical DIY wooden model of a walking tyrannosaur is driven by a metal spring, which transmits power through a reduced gear, turning the axle that drives the legs. A clever system of links and connections allows this king of the dinosaurs to walk on its own two feet—the first bi-pedal walker in the Ugears collection! An eccentric gear sets the tail swaying in synchronous motion with the legs, helping the dinosaur keep its balance and not fall to the side, just as in nature.

This amazing walking dinosaur model is a wind-up DIY wooden scale model of a full-grown Tyrannosaurus Rex. The top of the tail conceals the winding key. Remove the key and insert into the ratchet mechanism on the dinosaur's left side, making sure the head of the left femur is clear of the opening (if you need to, flip the on/off switch to the "on" position, then spin the gear above the T-Rex's shoulders to move the leg). Flip the on/off switch to the "off" position (toward the head) and wind the mechanism half a dozen times clockwise, replacing the key to its position between the tail and body. Place the Tyrannosaurus on a smooth, flat surface, holding the automaton by the body (don't squeeze the legs together!), flip the on switch and release. Your Tyrannosaur will stalk away, in search of its next meal, its tail swinging and jaws crunching up and down in anticipation. It's actually kind of terrifying!

The Ugears Tyrannosaurus Rex is rated "Advanced" level, has 249 parts, and promises 8 hours of exciting assembly time. No glue or special tools are required for assembly. Just follow the step-by-step instructions to guide your build, making sure to properly sand and lubricate all moving parts for optimal dino function.

Start your Ugears dinosaur collection today with the King of the Tyrant Lizards. This lumbering scale giant can cover up to 60 cm on a single winding. And be sure to check out some of the other amazing automatons in the Ugears catalogue, including the Horse-Mechanoid, Butterfly, and another slightly terrifying walker, the Hexapod Explorer. You'll find models for every taste and interest in the wonderful world of Ugears 3D puzzles, DIY model kits, automatons, robots, wooden puzzle boxes and STEM Lab model kits.

The Ugears Tyrannosaurus Rex is a unique gift and the perfect model to build with a child who is fascinated by dinosaurs. Any hobbyist who appreciates amazing design and mechanics will want to add the T-Rex to their collection. Office workers wanting to add a touch of terror or whimsy to their desk will love this wooden dinosaur automaton. Kick off your collection of Ugears dinosaurs with the king of them all—the fearsome Tyrannosaurus Rex!

• Model size: 37.5*14.7*10 cm
• Number of components: 249
  
• Estimated time for assembly: 8 hours
  
• Level: Advanced