How To Make A Projector With A Glass Cup

How To Make A Projector With A Glass Cup

How To Make A Projector With A Glass Cup? Making a projector with a glass cup is a fun and inexpensive DIY project that can be done with just a few household items. It’s a great activity for kids to learn about optics and light, and can also be a fun way to watch movies or present slideshows.

With a bit of creativity and some basic materials, you can create your own projector using a glass cup and a few other items that you may already have at home.

How To Make A Projector With A Glass Cup

In this Guide, you’ll learn How To Make A Projector With A Glass Cup with just few steps but first let just come to the material which is needed for this project.

Material Required

To make a projector with a glass cup, you will need the following materials:

  • Glass cup or jar with a flat bottom
  • X-acto knife or similar cutting tool
  • Glue (such as super glue or hot glue)
  • Magnifying glass or lens with a strong magnification
  • Phone or other device to project image

Here is a guide on how to make a projector using a glass cup:

Step 1: Cut a hole in the bottom of the cup

Using the X-acto knife, carefully cut a small hole in the bottom of the cup. The hole should be slightly smaller than the diameter of the magnifying glass or lens.

Step 2: Glue the magnifying glass or lens to the hole

Apply a small amount of glue around the edges of the hole and press the magnifying glass or lens into place. Make sure the magnifying glass or lens is securely in place and holds steady.

Step 3: Project an image

Turn on the device you are using to project the image and place it under the cup with the screen facing upwards. The magnifying glass or lens will project the image onto a nearby surface. Adjust the distance between the cup and the surface to focus the image.

Step 4: Enjoy your homemade projector!

You can now use your homemade projector to watch movies, view slideshows, or play games. Experiment with different distances and angles to get the best projection.

Advantages of Homemade Projector:

Cost: Building your own projector can be significantly cheaper than buying a pre-made projector, especially if you have some of the necessary materials on hand.

Customization: When you build your own projector, you have the ability to customize it to your specific needs and preferences. For example, you can choose the size and shape of the projector, as well as the type of lens and light source you want to use.

Pride of ownership: There is a certain satisfaction that comes with building your own projector, knowing that you created something with your own hands.

Disadvantages of Homemade Projector:

Time and effort: Building a projector can be a time-consuming and complex process, especially if you are not familiar with electronics and optics. It may take several hours or even days to complete the project.

Quality: A homemade projector may not have the same level of quality as a professionally made projector. There may be issues with the brightness, contrast, or focus of the image, and the projector may not be as durable as a commercial product.

Safety: Working with electronic components and high-voltage light sources can be dangerous. It is important to take proper safety precautions when building a projector, such as wearing protective eyewear and using caution when handling electrical components.


In conclusion, First gather a glass cup, a magnifying glass, a piece of paper and a flashlight. Now place the magnifying glass at the bottom of the glass cup and focus the flashlight beam through it onto the paper. Adjust the distance between the glass cup and the paper until the image becomes clear.

Finally, turn off the lights and enjoy your homemade projector! This simple and affordable project is a great way to entertain kids and adults alike, and it can be used to display a variety of images, including pictures, slides, and even films.

Thanks for Reading :)

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How To Make A Projector With A Glass Cup…

by Asheer Raza time to read: 3 min