Stemwurks

Description: OwiKit OWI-SLK173 Rookie Solar Racer v3 OWI™s farm system has cultivated yet another possible Rookie of the Year prospect. Rookie Solar Racer V3 is the latest version of the successful line of Rookie Solar Racers. The modernized variant...

Description: Pathfinders PFD- 18 Leonardo Da Vinci Ornithopter Wooden Kit Flying has always been a dream of humans, and Leonardo™s fascination with birds and flight was evident in his studies of birds and different human powered flying machines. His...

Description: Pathfinders PFD-19 Leonardo Da Vinci Helicopter Wooden Kit One of Leonardo™s most iconic images, the Aerial Screw (also known as the Helicopter) illustrates the ingenuity of da Vinci, and indicates (along with many other drawings!) his...

Description: Pathfinders PFD-22 Leonardo Da Vinci Trebuchet Wooden Kit Considered by many to be the most powerful and destructive of all the siege engines, the trebuchet took many forms throughout the Medieval world, hurling huge rocks, giant fireballs...

Description: Pathfinders PFD-23 Medieval Catapult Wooden Kit The catapult has a long and interesting history. It has been around in many forms, evolving since about 400 BC. This model is based on the medieval styles that were used during the middle ages...

Description: Pathfinders PFD-28 Hydraulic Robotic Arm Wooden Kit This robotic arm is an easy to make 3-dimensional model that grabs, lifts items horizontally, and can turn very close to 90 degrees! Designed to be used alone (with a nice syringe holder),...

Description: Pathfinders PFD-32 Leonardo Da Vinci Trebuchet Wooden Kit While Trebuchets were common siege engines in Medieval Times, Leonardo™s take on the most powerful weapon of the time was unique “ his design used one main mast, different from all...

Description: Pathfinders PFD-39 Hydraulic Gearbot Wooden STEM Activity Kit Hydraulic Gearbots are not all that common, but the fun thing about this one is that it is relatively easy to make, will amaze your friends, and you can toss popcorn around when...

Description: Pathfinders PFD-5 Hydraulic Machines 4 In 1 Wooden STEM Activity Kit The 4 in 1 STEM Hydraulics kit has 4 small kits that introduce kids to simple hydraulics, and their application to levers and simple machines. These kits provide hours of...

Description: Pathfinders PFD-50 Ancient Roman Ballista Wooden Kit The ballista was a powerful weapon “ originally invented by the Greeks over 2000 years ago and widely used by the Romans in battles and sieges. Using the stored energy in twisted sinew the...

Description: Pathfinders PFD-51 Ancient Trojan Horse Wooden Kit Ancient Greek legends have many references to the Trojan Horse “ a huge wooden horse that was left in Troy “ with warriors inside. When it was brought into the walled city, the warriors came...

Description: Pathfinders PFD-52 Ancient Roman Catapult Wooden Kit Originally invented by the Greeks* over 2000 years ago and widely used by the Romans in battles and sieges, the Catapult had many different methods of launching projectiles. During the...