How to make Hydraulic Excavator from Cardboard | School Science Project Idea

Описание: In this video, I’ll show you how to make a fully functional hydraulic excavator using cardboard, syringes, and simple materials.
This mini machine can lift, move, and operate just like a real excavator — but made entirely at home!
Perfect for school projects, STEM experiments, and DIY lovers.

Materials Used:

Cardboard

Syringes

Engine oil

IV set tube

Glue & cutter

📌 Watch till the end for full building steps and tips!
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⚠️ Warning:
This project should be made carefully and under adult supervision if you are under 18.

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