RV

Roller Coaster

Use ice cream sticks to make tank-themed brackets, round wooden sticks to make the rotating shaft of the cabin, kitchen paper cores to make the launch barrel, and finally test the load-bearing capacity of the tank. A super tank is completed.

Super Vending Machine

ski resort

To see how powerful the air pressure is, the tool used is a syringe. When the syringe is filled with gas, when the injection port is blocked, press the syringe hard. When the gas is squeezed out, we can no longer squeeze it hard, which means that As long as there is air pressure, you can finally lift very heavy objects. Based on this experiment, make a pneumatic robotic arm. The robotic arm mainly consists of a base, a big arm, a small arm, and a mechanical clamp. The pneumatic power needs to be fixed at two different joints. Therefore, in the sketch, the elliptical pillar that was originally thought of was replaced with a triangular base bracket to increase stability. , the double row of ice cream sticks bear the main weight of the big arm and the forearm, and the log stick between the big arm and the forearm is used as a fixed point for the air pressure. The mechanical clamp adopts a scissor-type structure, and the installation of different air pressures is tested position to ensure that the mechanical clamp can open and close stably. Finally, all the components were assembled together to complete a pneumatic manipulator. However, during the test, the pneumatic manipulator found that the gas would be compressed and the reaction was always slow, so the original gas was replaced with water, and the manipulator moved. It becomes very sensitive, and the test can pick up gloves, scissors, sharks, etc.

Use ice cream sticks with holes and log sticks to study linkage structures. The rod structure can be easily formed using an ice cream stick and shaft. When the number of rods continued to increase, it was found that the structure of three rods was the most stable and could not move. Four rods formed a parallel four-link structure, which could achieve stable relative motion. When there are five rods, the motion is no longer relative and becomes irregular. Therefore, when the number of strokes increases, the more strokes, the more stable it is. Make an interesting telescopic arm using parallel four-links that can move stably, and add animal opening and closing mouths at the opening and closing ends. A puppy or a shark jumps out of the water. A story is ready for the link structure toy

Big Shark

Vacuum Cleaner