1. Preparation materials: Some discarded mineral water bottles need to be prepared, and the quantity depends on the length and width of the bridge. Besides, you need to prepare some tools, such as tapes, scissors and rulers. Design the bridge structure: Before making it, you can draw the structural diagram of the bridge, including the deck, piers, supports and other parts. This can better guide the production process.

2. Making pier: cut the mineral water bottle in half, and then turn the upper part upside down to make it stick with the lower part to form a stable triangular structure. Such piers can bear more pressure. Making bridge deck: cut the mineral water bottles into strips with appropriate width, and then stick them together with adhesive tape to form a flat bridge deck.

3. Connecting the pier and the bridge deck: Connect the pier and the bridge deck with adhesive tape to ensure that the joint is firm and reliable. Some supports can be added between the pier and the deck to improve the stability of the bridge. Decorate the bridge: in order to make the bridge more beautiful, you can decorate the bridge with colored paper, ribbons and other materials.

Matters needing attention in making handmade bridges with mineral water bottles are as follows:

1, safety first: in the production process, we must ensure that the tools and materials used are safe. For example, scissors, tape and other tools should be placed out of the reach of children to avoid accidental injury. Also pay attention to protect your hands and avoid being cut by sharp tools such as scissors. Choose a suitable mineral water bottle: when building a bridge, choose a mineral water bottle with good quality and no damage.

2. This can ensure the stability and safety of the bridge. At the same time, we should also pay attention to the size and shape of mineral water bottles for better cutting and splicing. Accurate measurement: During the fabrication process, attention should be paid to accurately measuring the length, width and height of mineral water bottles to ensure the structural stability of the bridge.

3, you can use a ruler and other tools to measure, to avoid the instability of the bridge caused by inaccurate dimensions. Firm connection: when connecting mineral water bottles together, make sure the connection is firm and reliable. It can be fixed with adhesive such as adhesive tape and glue to ensure the stability of the bridge. At the same time, pay attention to check whether the joint is loose and adjust it in time.