How to make a projector, how to make a homemade projector

How to make a simple holographic projector tutorial, although you can buy similar things for only a few dozen dollars, but how can you have your own DIY fun!

Material preparation: 1. 1 Acleric board (you can go to the stationery store to ask, here is a transparent cover commonly used in making bids).

2. A number of corrugated paper pieces.

3. Adhesive material.

4. Tablet computer.

According to the projection equipment, the size of the Acleric board is determined, and for the 8-inch tablet, the A4 specification is just enough to meet the needs. Draw a regular pentagon on an A4-sized aquepal board and divide it into five isosceles triangles, with a waist length of about 10 cm. Cut off one of the isosceles triangles and fold out a pyramidal structure, with glue at the edges of the joints.

It is best to engrave the board with a needle before folding. Then add the details. Make a shelf out of a waste paper box, prepare the tablet, and then you can make a hologram source.

**The format is generally square, and the four views of the projected object are arranged as shown above. In this way, the tablet screen is placed on a shelf at the top of the pyramid, the angle is adjusted, and a virtual image is formed on a plastic sheet using the principles of interference and diffraction. The projected object is not necessarily limited to four views, characters, comics, and models can be used.

Here's how to make a homemade projector:

1. First of all, we need to prepare the tools and materials for production, mainly shoe boxes, magnifying glasses, watercolor pens, rulers, handmade knives and adhesive strips. Note that those who do not have handmade knives can also prepare scissors.

2. After the tool is ready, we need to find the center point on the side of the shoebox with a magnifying glass or adhesive strip, and draw a circle along the perimeter.

3. The third step is to use scissors or a manual knife to cut it along the marked circle.

4. The fourth step is to fix the prepared magnifying glass in the shoebox with adhesive strips, and make sure that there is no light source around to cast it in order to form a good projection effect.

5. The fifth step is to use the shoe cover to make a pull strip that can be used to adjust the focus; Or use wire to make a phone holder.

6. To make a simple projector at home, we use the inverted imaging principle of the magnifying glass, so we also need to set the mobile phone screen. In the case of an iPhone, we can adjust it in the accessibility of the settings; For Android phones, we can select and turn on the screen of the phone. Once adjusted, place it in the made phone holder and find the focal point.

7. After the production is completed, close the lid. Find a white wall, turn off the interior lights, and start enjoying our movie-watching journey.

For a homemade projector, we need to prepare a lot of materials, including Fresnel lenses, mirrors and balsa wood chips, and some non-woven fabrics. The material of the shell is generally 3mm thick, and there needs to be a bracket for the mobile phone and reflector mounting, which also needs to be made of 3mm balsa wood board.

The first step is to calculate the distance between objects and the size of the box, and use cardboard to make the template of each part of the box. According to empirical testing, the distance between this reflector and this Fresnel perfiable calendar excavation lens is best about 7cm. In this case, a relatively clear image of 20 inches can be projected at a distance.

The second step is to design and draw the outline of each part using the rotten hail paper shell template on the non-woven epithelial core, and then use the scissors to cut it out, which is used to hold the Fresnel lens. It must be noted that there are lines on the lens, and one side must be facing the inside of the box, and it must not be reversed.

In the third step, we need to use a sewing machine to sew the two sides of the self-made projector with the box.

In the fourth step, we need to use a light wooden board to make a reflector stand, and the bottom of this bracket is used to hold the phone. After that, you need to make a simple frame for the Fresnel lens to support the box, so that you can achieve the realm of precision.

The fifth step is that the whole box is formed, and the rest is the aesthetic design, at this time we need to add a metal button, and then put the mobile phone and the reflector in, so that the whole DIY projector is completely completed.

Making your own projector requires some expertise and tools, but it's not impossible. Here's a simple way:

1.Buy a lens and a high-brightness light bulb, some black wires, a wrench and screwdriver, and a hollow aluminum case.

2.He used a wrench to install the lens and the bulb in the small hole in the lid.

3.Attach clear yellow plastic tape to the box to enhance brightness and ensure that the image is clearly displayed on the wall or screen when the lens on the box is passed.

4.Lead the wires out of the box and into an electrical outlet.

5.Place the box in a safe location, plug it in, and adjust the size and clarity of the image to make it look best and make a general presentation.

It is important to note that making your own projector requires great care, as using components such as a wide range of bulbs and high brightness can be very dangerous. During the production process, it is important to pay attention to safety. If you are unsure how to proceed, it is recommended to seek professional help.

Making a projector is not a difficult thing to do. Here's one way to make a projector:

1.Prepare the materials.

The following materials are needed to make a projector: an empty cardboard box, lenses, LED lights, cardboard, a scanner or printer, wires, power tools, and plastic film.

2.Make a light stand.

Cut a piece of cardboard into a rectangle, in the middle of which a circular hole is made with a power tool. Seal the plastic film underneath and make a small notch at the bottom edge.

3.Make a lens holder.

On the side of the cardboard box, make a rectangular hole slightly longer than the lens, which can be made with power tools. Attach a piece of cardboard and a piece of plastic film to make it closed. The light from the notch will allow the lens to project onto the wall.

4.Handle LED lights.

Attach the LED light to a cardboard. It is then cut into a circle to ensure that light can go directly into the lens. Connect the wires to the lights.

5.Assemble. Open a hole on one side of the jam box and place the lens into the rectangular hole. The LED light and the bracket are fixed on the other side of the cardboard box. Connect the wires. Close the top of the cardboard box, leaving only a small mouth.

Now, you can try scanning some slides or images onto your computer, dressing them up and then using your homemade projector to zoom them on the wall.

Of course, there are many other ways to make a projector, but this one is very simple and only requires some common materials.

Here's how to make a homemade projector:Tools Raw materials: cardboard tubes, colored paper, double-sided tape, scissors, brushes, knives, plastic cards.

1. First prepare a cardboard tube and decorate it with colored paper.

2. Then draw a circle with the size of the paper tube, leave a part of the circle and cut it with scissors, and then draw a circle inside the circle, and use a knife to cut out the hollow shape.

<>3. Next, wrap the paper strip around one end of the cardboard tube, paste a circle of double-sided tape, and then glue the ring you just made to it.

4. Finally, prepare a transparent plastic card, cut out a circle and draw a good-looking pattern, paste it on the lens, and the simple and good-looking projector is completed.