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Step-by-step guide to build a hydraulic crane with cardboard and syringes

Here’s a **step-by-step guide** to build a **simple hydraulic crane using cardboard boxes** that can lift **100g weight** (like a small toy or metal object), using **syringes and tubing**: --- ### 🌟 MATERIALS NEEDED: * 2 large cardboard boxes (to build base and arms) * 2 large syringes (50-60 ml) * 2 small syringes (10-20 ml) * Flexible plastic tubing (fits syringe tips) * Water (or colored water) * Scissors or craft knife * Glue gun or strong glue * Pencil/ruler * Paper clips or wooden skewers (for pivots) * A 100g object (weight) * Tape --- ## 🔧 STEP-BY-STEP INSTRUCTIONS --- ### **Step 1: Build the Base** * Use a **flat piece of cardboard box** as the base (around 30cm x 30cm). * Attach a **vertical support pillar** (15-20 cm high) upright on one side using glue and extra support pieces. --- ### **Step 2: Make the Crane Arm** * Cut two long cardboard strips (25cm x 5cm) to form the **arm** of the crane. * Connect them in an L-shape or straight arm using a **pivot** (skewer or paper See more

#technology #diy #architecture

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