Children love to play with motorized toys that can move around. But even they quickly get bored if the child did not make them himself. If he was involved in the process of creating a toy, he will not get tired of it much longer.
Instructions
Step 1
Take the motor from a faulty cassette player. They are significantly more durable than those specifically designed for use in toys, thanks to the use of a metal rear bearing.
Step 2
Connect a 1N4007 diode in parallel with the motor in reverse polarity (cathode to positive, anode to negative). On the motor, the red wire is for the positive pole, and the black wire is for the negative. It cannot be reversed due to the specific shape of the brushes - they will wear out faster from rotation in the opposite direction.
Shunt the diode with a capacitor by several tens or hundreds of nanofarads.
Step 3
Try to connect one AA or AAA element to the motor, observing the polarity (so that the diode does not open and cause a short circuit) (even if the player is designed to operate on two - it supplies voltage to the motor through a special regulator). It should start spinning.
Step 4
In factory-made movable toys, the movement is transmitted to the wheels through a gearbox. Making a gearbox at home is a troublesome business. So do it differently. Place a small eccentric on the motor shaft. And then just glue it to a lightweight platform that you can use, for example, an expired discount or payphone card.
Step 5
Glue the battery compartment and a small switch to the same card.
Step 6
Place the card, parts side up, on a smooth table and turn on the engine. The child will love to watch the toy move randomly across the table. Make sure she does not fall.
Step 7
Having made two toys, you can arrange a competition in the so-called robotic sumo. A square is drawn on a plane with a side of about half a meter, both toys are placed in its center. With chaotic movements, they begin to push each other. The loser is the toy pushed out of the square.
