Physics Lab Project: Design and Build an Electric DC Motor

In summary, for a final lab project, the task is to build an electric DC motor on a 6V DC battery, with restrictions that no plastic parts can be used, the motor must run for at least 60 seconds, and it must have brushes and a commutator. The physics behind it is known, but there are difficulties in the construction process, such as choosing a suitable material for the armature and wrapping the coil around the armature and axle. A helpful resource for basic construction techniques can be found at http://sci-toys.com/scitoys/scitoys/electro/electro2.html#bigger.
  • #1
Rastabot
2
0

Homework Statement


Hey, For one of our final lab projects, we have to (less design and more build) an electric DC motor on a 6V DC battery.

Restrictions/Requirements:
No plastic parts can be used
The motor must run for at least 60 seconds
No simple motors allowed
"not-simple" means, it must have brushes and a commutator.

Homework Equations


The Attempt at a Solution


I know the physics behind it, but I'm having trouble building it. What would be good material for the armature? And do I wrap the coil around the armature and then wrap it around the axle?
Any tips or resources on this would be helpful, thanks in advance.
 
Physics news on Phys.org
  • #3


Hello,

Designing and building an electric DC motor is a great project to apply your understanding of physics. To start, you will need to consider the materials you will use for the armature, which is the rotating part of the motor. Some good options for armature materials include iron, copper, and aluminum. It is important to choose a material that is conductive and can support the weight of the coil.

Next, you will need to consider the design of the coil. The coil should be wrapped tightly around the armature and secured in place. The number of turns in the coil will also affect the strength of the motor, so you may need to experiment with different numbers of turns to find the optimal design for your motor.

As for the brushes and commutator, these are essential components in a DC motor. The brushes are usually made of carbon and make contact with the commutator, which is a rotating switch that changes the direction of the current in the coil. It is important to ensure that the brushes and commutator are in good contact to ensure the motor runs smoothly.

In terms of resources, there are many online tutorials and videos available that can guide you through the process of building an electric DC motor. You may also want to consult with your instructor or a physics textbook for more information on the principles behind the motor.

I hope this helps and good luck with your project!
 

1. How does an electric DC motor work?

An electric DC motor works by using an electric current to create a magnetic field, which interacts with permanent magnets to produce motion. This is known as the principle of electromagnetism.

2. What materials are needed to build an electric DC motor?

The main materials needed to build an electric DC motor include a battery, copper wire, a magnet, and a base to hold everything in place. Other materials such as a switch, paper clips, and tape may also be needed depending on the design.

3. What factors should be considered when designing an electric DC motor?

When designing an electric DC motor, factors such as the size and strength of the magnets, the number of coils of wire, and the type of battery used should be considered. These factors will affect the efficiency and performance of the motor.

4. How can the speed or torque of an electric DC motor be controlled?

The speed or torque of an electric DC motor can be controlled by adjusting the voltage or current supplied to the motor. This can be done by using a variable resistor or a motor controller.

5. What are some real-world applications of electric DC motors?

Electric DC motors have a wide range of applications, including powering household appliances, electric vehicles, and industrial machinery. They are also commonly used in robotics and automation systems.

Similar threads

  • Engineering and Comp Sci Homework Help
Replies
4
Views
599
  • Engineering and Comp Sci Homework Help
Replies
25
Views
3K
  • DIY Projects
Replies
23
Views
2K
  • Engineering and Comp Sci Homework Help
Replies
10
Views
2K
  • Introductory Physics Homework Help
Replies
7
Views
5K
  • Engineering and Comp Sci Homework Help
Replies
13
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
5K
  • Introductory Physics Homework Help
Replies
12
Views
2K
  • Mechanical Engineering
Replies
3
Views
1K
  • Electrical Engineering
Replies
13
Views
2K
Back
Top