A, vehicle overload alarm

Making method:

1, assembled alarm;

2, make a good car model;

3, the assembled alarm hidden in the car model;

4, with wires connecting the alarm and the electric key that becomes.

Two, multi-functional windproof drying rack

Making instructions:

Make 4 pieces of bamboo 20 cm long, 1.2 cm wide, 0.2 cm thick. Drill a 1 mm diameter hole right in the middle of each end of the bamboo piece, and use rivets to connect the 4 pieces into a square. Choose any two ends, with a 40-centimeter-long card rope connected to become.

Three, the automatic water supply

Methods:

1, the material preparation: 1000ml Coke bottle, a mineral water bottle, a diameter of 0.5 cm of plastic pipe 40 cm.

2, assembly steps:

(1) Drill 2 holes with a diameter of 0.5 cm at the cap of the mineral water bottle.

(2) Cut off the plastic tube into long 30 centimeters for the positioning of the water pipe, 10 centimeters for the water supply pipe, respectively, inserted, one of the long inserted to the bottom of the bottle, the other to the mouth of the bottle.

(3) Take the bottom of the Coke bottle 10 centimeters out of the cut for the water basin, in the water basin on the top and bottom of each drill a 0.5 cm diameter hole.

(4) Insert the feed pipe into the lower hole, and the positioning pipe into the lower hole.

(5) Use the wire to connect and fix the water bottle and water basin.

Four, pick up the ball

Use: will pick up the bottom of the grid against the ground ping-pong ball a press, the ball can be smoothly into the without falling down, continuous can pick up many, and then pick up the ball vertical, so that the round holes taunt, the ping-pong ball is rolled out.