With TeacherGeek mini-hub assemblies, easily create propeller or wind turbine rotors for STEM | STEAM | Maker projects. Each red "motor mounted" mini-hub contains a cover and a base, which twist together on an #6 machine screw. The hub mounts directly to any 1.5-3V or 3-6V project motor, with slotted holes to easily attach 1-6 skewers or toothpicks for blades. Plenty of additional skewer sticks are included for alternative blade designs and experimentation, crafted from recycling bin materials, 3D printed elements. arts + crafts sundries or other innovative items. These assemblies are excellent for projects including air boats, fan cars, hovercraft, fans, mini wind turbines, wind lift mechanisms, Rube Goldberg machines or other inventions. Kids absolutely LOVE constructing their own rotors and propellers, learning through making and the engineering design process. Isolate variables, change pitch, angle or weight and tinker forever with TeacherGeek. Note: Motor mount assemblies attach to project motors. For dowel or other component attachments, try the green "dowel mount" mini hub assemblies.
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