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

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! 👍 Don’t forget to Like, Share & Subscribe for more creative DIY projects. 📌 Watch More Videos:    • DIY Remote Control Smart Dustbin from Card...      • DIY Cardboard Tractor Trolley 🚜 | Amazing ...      • DIY Cardboard Forklift That Actually Works...   📱 Follow Me: TikTok Shorts ➡ https://www.tiktok.com/@ma.diy.tv.sho... ⚠️ Warning: This project should be made carefully and under adult supervision if you are under 18. #diy #cardboardproject #hydraulicexcavator #diyprojects #stemprojects #schoolproject #miniexcavator #engineeringproject