UGEARS UG70203 Tyrannosaurus Rex Mechanical Model Kit

Assemble me. Bring a fearsome ancient apex predator to life!

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.

Up to 13 meters in length and 9 metric tonnes in weight, tyrannosaurs had the largest teeth of any carnivorous dinosaur, capable of tearing flesh and crunching bone. They also had highly-developed senses of smell, on par with vultures, and incredibly acute eyesight—better than eagles. They were the apex predators of the late Cretaceous period, roaming over what is now western North America, in environments ranging from bayous to semi-arid plains. Their giant rear legs and swaying tail made them efficient walkers, capable of stalking prey over long distances before closing in for the kill with a burst of speed. They could also smell carrion at a great distance then chase other predators from the carcass, making them the bullies of the Cretaceous lunch room.


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 in 11 languages (English, German, Ukrainian, French, Polish, Spanish, Portuguese, Japanese, Italian, Chinese and Korean) 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!

Key Features

• The fearsome predator: Tyrannosaurus Rex is the founding member of the UGears dinosaur automaton collection. This amazing walking 3D puzzle dinosaur is a wind-up DIY wooden scale model of the most terrifying predator to ever walk the earth
• Bi-pedal: All UGears model building kits and 3D puzzles for adults and children have moving parts, yet there is something unique about this dinosaur building kit: it's the first bi-pedal walker. The assembled 3D Trex can confidently walk on its own two feet without falling over
• Astonishing miniature: Our lumbering walking wooden dinosaur is driven by a metal spring and can cover up to 60 cm on a single winding with its tail swaying and mouth opening to reveal its huge teeth
• Challenging adventure: This 249-piece dinosaur wooden puzzle is rated "Advanced" and promises 8 hours of exciting assembly time. Such complex building kits are best for experienced modelers, yet you can assign smaller tasks to children such as snapping out or sanding the parts to make it a DIY family project
• Unique gift: The UGears 3D Trex is the perfect mechanical puzzle to build with a child who is fascinated by dinosaurs. Also, adult hobbyists will appreciate the design and mechanics of this DIY engineering kit. Add the impressive Tyrannosaurus Rex to any collection with complete confidence
• Kit contains all required components and no glue is required
• Precision laser cut plywood. Only requires assembly.
• UGears Mechanical Models are self-propelled, mechanical wooden model assemble kits.
• Perfect for family projects, puzzle enthusiasts, and hands-on STEM learning
• 249 parts
• Assembly time: 8 hours
• Model size 375х147х100mm