However, without some careful design choices, junkbots will tend to move randomly or spin in circles. This is the same concept used to make cell phones and video game controllers vibrate-they have tiny motors with off-center weights inside.
This makes the motor vibrate, causing the robot's entire body to wobble. Your students will attach an off-center weight (a cork) to the motor's spinning shaft. If the positive and negative leads between a battery and motor are crossed then a short circuit occurs and the motor receives no power (motor does not spin).įigure 1.
In a closed circuit, the positive and negative leads are connected and the motor receives power (motor spins). In an open circuit, there is no connection between the wires of a battery and motor so the motor receives no power (motor does not spin).
Open floor space on a smooth surface (not carpet)Ī battery must be correctly connected to a motor for both to function properly. Optional: hobby knives (adult supervision recommended for young students). Optional: hot glue guns (adult supervision recommended for young students). Assorted craft materials (pipe cleaners, googly eyes, etcetera). Assorted recycled materials (cardboard, clean plastic bottles, etcetera). Other household items include a cardboard box, glue, rolls of tape, scissors, plastic cup, plastic bottle, cork, popsicle sticks, paper clips, plastic straws, metal cans, and a cardboard tube.įor each student or small group of students building a robot, you will need these items in theīristlebot Robotics Kit from our partner Home Science ToolsĮnough parts for two Junkbots, as well as parts for two To build a junkbot you will need a motor, a battery pack, and two double A batteries.
0 kommentar(er)
