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Will
Hi, Thanks for visiting my website. My name is Will and if you have questions
or would like to
contribute projects or ideas you can contact me Will

How to make a constellation projector

An easy and fun project and I give you a bunch of learning activities to go with it - I also have a video tutorial you can watch. It is at the bottom of the page.

Along with this tutorial on how to make the projector comes a free template with sixteen constellations and all the plans for making it. I also have some great project and activity guidelines that will help you make the projector even more fun, (The Template for this project is here ) and a bit of a learning project so kids and people can learn more about the night sky. The activities are right here.

How it works

It is a very simple set up. It is a box with an aluminum foil lining. On one end of the box is a flashlight and on the other end is a place to put index cards with constellation pin holes in it. The flashlight shines light through the pinholes in the index card thus casting stars on a wall.

 

What you need to make this project:
  • 1 sheet of foamboard (corrugated cardboard will work too)
  • Some type of glue or a hot glue gun
  • Some aluminum foil
  • 1 small flashlight with a single bulb in it. Not a flashlight with multiple bulbs
  • The template I give you (Here)
  • An xacto or hobby knife to cut the foamboard
  • Scissors
  • Pencil or Pen
  • Index cards (3x5) but this is optional
  • Some kind of pin, pushpin or needle to pierce the star holes in the index cards

About the flashlight

Try to get and use a flashlight with a single bulb or LED in it. There are many flashlights that have multiple bulbs in them. Those are a little bit trickier to use for this project. They will often cause each star to cast multiple stars on the wall.

A single LED flashlight

Multi-LED flashlight.


Okay! Let's Make it (continue)

You can also watch the video tutorial here: