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How to Make a Cheap iPod Projector and Screen

Oct 24, 2011 06:24 PM

This article will teach you how to make an iPod video projector for about $6 (depending on what materials you have) that works pretty well. First off, you need to gather your materials. I had everything except the magnifying glass, which I bought for $3.

Materials

  • Cardboard Box: I found one that was about 20" x 20" x 4.5". Usually you can use an oatmeal box, but my magnifying glass had to be further away from the mirror.
  • iPod: Or any other backlit device.
  • Mirror: Mine was about 5" x 4".
  • Cheap Foam Rectangle: You can get these at a craft store for 89 cents.
  • String: Used for the screen.
  • Duct Tape: Workshop essential.
  • Magnifying Glass: Square ones probably work better, but a circle one will do fine.

Tools

  • X-ACTO knife: General cutting of the cardboard.
  • Scissors: Rough cardboard cutting.
  • Ruler: Just measuring.

Cut the Cardboard

This is the most time consuming step, because you need to cut all of the cardboard. The box should be at least a size that fits the backlit device, the mirror, and the magnifying glass.

Remember that the closer the projector is to a wall or screen, the further the lens has to be from the device. So the longer the box, the closer and more focused you can get, but it will make the image smaller. I made my box a lot smaller. I cut it down to 4 1/4" x 4 1/2" x 20".  Since an iPhone's screen is 2 by 3 inches, I made a 2" x 2" box with 1/2" extruding on either side, so I can rotate the iPhone. Also, cut out the front—this is where the image will be projected from.

Ruler and stencil over a cardboard surface.

Yes, that is a Star Wars ruler. 4 1/2 inches tall...

How to Make a Cheap iPod Projector and Screen

...4 1/4 inches wide.

Open cardboard box with a cut-out section.

The hole for the iPhone.

Closed cardboard box on a floral patterned surface.

Big box....

Cardboard box on a floral patterned carpet.

...little box

Empty cardboard box on a patterned rug.

Cut open the front.

Ruler and stencil over a cardboard surface.

Yes, that is a Star Wars ruler. 4 1/2 inches tall...

How to Make a Cheap iPod Projector and Screen

...4 1/4 inches wide.

Open cardboard box with a cut-out section.

The hole for the iPhone.

Closed cardboard box on a floral patterned surface.

Big box....

Cardboard box on a floral patterned carpet.

...little box

Empty cardboard box on a patterned rug.

Cut open the front.

Attach the Mirror

As I said earlier, my mirror was about 4" x 5". You have to create a 90 degree angle so the mirror will bounce the image of the iPod. To do this, I cut a scrap into squares and then in half. I then duct taped the mirror to this and then taped it under the iPod hole.

A small square mirror with a blue frame placed on a patterned carpet.
Gingerbread house partially covered in foil on a blue surface.
Box with a blue object partially inside and a patterned carpet.
A small square mirror with a blue frame placed on a patterned carpet.
Gingerbread house partially covered in foil on a blue surface.
Box with a blue object partially inside and a patterned carpet.

Attach the Magnifying Glass

The magnifying glass is the main component of the projector. It focuses the light from the iPod into a concentrated beam. You can make the handle protrude from the sides or the top—I chose the right side. You should cut a hole a little smaller than the base of the handle so the glass won't fall down.

Magnifying glass on a patterned rug.
How to Make a Cheap iPod Projector and Screen
A blank piece of paper resting on a patterned rug.
Cardboard box with a black handle tool inserted through a cutout.

The box hasn't been sealed in this photo.

Magnifying glass on a patterned rug.
How to Make a Cheap iPod Projector and Screen
A blank piece of paper resting on a patterned rug.
Cardboard box with a black handle tool inserted through a cutout.

The box hasn't been sealed in this photo.

Finish the Projector

First, tape the sides closed. Since my magnifying glass was too small for the hole, I put a piece of foam on the side so it would make a snug fit. You want all of the unused holes to be covered up. I made two cardboard L's to cover the open parts beside the magnifying glass. I used the flap on the front to prop the projector up when playing, but you can use whatever you want.

Cardboard strip on a patterned rug.
Cardboard piece on a patterned carpet.
Cardboard box on a patterned rug.
Cardboard box on a patterned rug.
Cardboard strip on a patterned rug.
Cardboard piece on a patterned carpet.
Cardboard box on a patterned rug.
Cardboard box on a patterned rug.

How to use the projector

  • To focus, move the magnifying glass closer or further away from the iPod.
  • To make the image larger, move the projector further away from the screen, and the opposite to make it smaller.
  • Make sure the magnifying glass isn't tilted or turned, as this will make the image distorted.
  • Remember that if the image of the iPod is crooked, don't tilt the projector, move the iPod.
  • Also, the image will move on the opposite direction that you turn the iPod because the image is flipped.

Make a Screen

This step is optional. I didn't have a good place to project the image, so I made a screen. You can only make the image a certain size to fit on the screen, depending on the size of the foam rectangle. I used a cardboard L taped to a base plate. I taped the foam to the top of the L and made supports so the foam won't bend. I supported the screen with strings so it wouldn't fall down.

Blank sheet of paper on a floral patterned rug.
Cardboard box on a patterned rug with white sheets of paper.
Spool of white thread on a decorative fabric background.
Cardboard box with tape on a patterned rug.
Blank signage on a wooden floor.
Blank sheet of paper on a floral patterned rug.
Cardboard box on a patterned rug with white sheets of paper.
Spool of white thread on a decorative fabric background.
Cardboard box with tape on a patterned rug.
Blank signage on a wooden floor.

Pictures and Videos

The video is Dirty Harry by The Gorillaz (I love Gorillaz).

Cardboard box and a blank canvas on a rug in a dimly lit room.

Using flash in attempt to capture projection, it didn't work...

Cardboard boxes and a flat sheet of paper on a wooden floor.

All folded up.

How to Make a Cheap iPod Projector and Screen

This is actually what it will look like. Good exposure!

Cardboard box and a blank canvas on a rug in a dimly lit room.

Using flash in attempt to capture projection, it didn't work...

Cardboard boxes and a flat sheet of paper on a wooden floor.

All folded up.

How to Make a Cheap iPod Projector and Screen

This is actually what it will look like. Good exposure!

That's it—you're done!

The next big software update for iPhone is coming sometime in April and will include a Food section in Apple News+, an easy-to-miss new Ambient Music app, Priority Notifications thanks to Apple Intelligence, and updates to apps like Mail, Photos, Podcasts, and Safari. See what else is coming to your iPhone with the iOS 18.4 update.

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