A stand for a homemade projector
one
Dig a hole in the front of the large shoebox. Compare the hole with a magnifying glass and a tape ring before digging. Mark the mark with a pen, then punch the hole with a sharp knife, and cut the magnifying glass with the knife.
two
Once the lens hole is in place, it's time to make a focus bar. Dig a gap at the back of the shoe box with the height and width of the shoe cover, usually a small shoe box, and leave it as a sliding track that can be pulled. In order to hold the phone in place, a phone holder is built inside. The method of the support is very simple, with another shoe box card to the shoe cover made before, the other half of the shoe box is cut off, and the transparent tape is glued to a base.
three
The next step is to install the lens of the projector. Put a paper loop of used scotch tape inside the shoebox, stick it with the tape, and then stick the magnifying glass to the front.
four
Put your phone on top of the base and put the shoe cover on. You have to focus when you're projecting, when you're focusing