DIY Hydraulic manipulator stem toys for kids

Physical STEM Science Kits Specifications:
Material: Wood, Plastic
Overall height: about 50 mm
Overall length: about 260 mm

Overall Width: about 90 mm

Weight: about 120g

Suitable age: 4 years old+
Ability development: physical and mental exercising, interest training, intellectual development, emotion, parent-child communication, interactive toys

The hydraulic manipulator is made use of Pasca’s law.According to Pascal’s law, if a fluid system has two large and small pistons, the pressure on both pistons must be the same, the pressure is equal to the applied pressure divided by the force area, then a small thrust is imposed on the small piston, and the pressure is transmitted through the fluid, and a larger thrust is generated on the large piston.The hydraulic mechanical arm controls the sliding of the No. 2 syringe by pushing and pulling the No. 1 syringe, and then controls the opening and closing of the gripper through a set of mechanical structures.