diy led red dot reflex sight
For this Instructable, I will teach you how to make your own ted dot reflective vision.
This quick and easy project is fun, and the possibilities are endless when you think about what you can do with it.
This project takes only 15 minutes to half an hour, which is great for rainy-day ships, or just a way to overcome boredom.
If you are going to do this project, you may want to do a little research on the basic circuit or someone nearby can help you.
For this project, you need: x1-
Cardboard pipe (any kind)x1 -
Plastic scratchRed Ledx1 -
1,000 ohm resistance (1 kOhm)x1 -Pen/Pencilx1 -Scissorsx1 -
Tape measure or ruler x1-Hot Glue Gun (and Glue)x1 -
9v battery Clipx1-
The first piece of paper and the first piece of paper
The easiest step is to cut the cardboard tube to a length of 5 inch.
Measure with a ruler or tape measure, mark the tube as 5 inch with a pen or pencil
I found it helpful to make a few marks around the tube.
Now, cut the tube carefully along your mark (s).
Be especially careful not to squander the side of the tube.
This is one of the hardest steps in this project.
At this step you need your paper, pen or pencil, tape measure or ruler, you may need a calculator.
Bidagolas theorem points out A ^ 2 B ^ 2 = C ^ 2.
This means that for any right triangle, the square of one leg, plus the square of the second leg is equal to the oblique edge (
Longest side)squared.
For our purposes, to solve this equation, make A the diameter of your tube (the width)
B should be 1/2 of the length of your tube (2.
5 a 5 inch tube).
Now, if we fill the theorem with these numbers, we can find the length of our plastic. 1. 5^2+2.
5 ^ 2 = length or plastic ^ 2.
If we solve this equation, the answer is eight.
5, equal to 2. 9154. . .
We can go to 3 for our purposes.
We now have a piece of plastic 3 inch in length.
For my plastic, I used the packaging of some of the breadboards I purchased from radiowack.
Cut your plastic so you are 3 inch long (
As determined in step 3)
It\'s as wide as your tube, it\'s 1 for me. 5 inches.
Now mark the center of each side of the plastic you cut out with a permanent mark.
When done, cut the plastic into the best oval shape, and the edge is where you just marked the plastic.
This plastic is like a mirror that reflects the dots made of led into your eyes.
Place a hot glue bead on the short edge of the plastic and slide it into the tube.
Now cross the other end with your fingers, hold the plastic to the bottom of the tube, while keeping the other end at the top of the tube, right next to the opening ceremony.
After the glue dries, glue the other end of the plastic to the top of the tube with heat, right next to the opening.
Now, from the small road through the opening, cut a crack above the plastic for about three quarters (
Represented by the LED in the figure).
Placing LED modules (see next step)
In this slit, move the led until you can go through the end of the tube and see the point in the center of the tube.
It may take a while and you may need to fiddle with the gap to get it to work, but you should end up with it.
Once you put the LED where you want it, stick it in place with hot glue.
To make the LED module weld or reverse the red positive line, from the clip to the resistor, from the resistor to the long leg of the LED (anode)
And then the black wire from the clip to the short end of the LED (cathode).
Circuit diagram download instructions.
Open svg files with internet explorer.
Now you can decorate and personalize your sight as you like.
I wrapped my bag up with tape to make it look smooth and cover it with hot glue.
This quick and easy project is fun, and the possibilities are endless when you think about what you can do with it.
This project takes only 15 minutes to half an hour, which is great for rainy-day ships, or just a way to overcome boredom.
If you are going to do this project, you may want to do a little research on the basic circuit or someone nearby can help you.
For this project, you need: x1-
Cardboard pipe (any kind)x1 -
Plastic scratchRed Ledx1 -
1,000 ohm resistance (1 kOhm)x1 -Pen/Pencilx1 -Scissorsx1 -
Tape measure or ruler x1-Hot Glue Gun (and Glue)x1 -
9v battery Clipx1-
The first piece of paper and the first piece of paper
The easiest step is to cut the cardboard tube to a length of 5 inch.
Measure with a ruler or tape measure, mark the tube as 5 inch with a pen or pencil
I found it helpful to make a few marks around the tube.
Now, cut the tube carefully along your mark (s).
Be especially careful not to squander the side of the tube.
This is one of the hardest steps in this project.
At this step you need your paper, pen or pencil, tape measure or ruler, you may need a calculator.
Bidagolas theorem points out A ^ 2 B ^ 2 = C ^ 2.
This means that for any right triangle, the square of one leg, plus the square of the second leg is equal to the oblique edge (
Longest side)squared.
For our purposes, to solve this equation, make A the diameter of your tube (the width)
B should be 1/2 of the length of your tube (2.
5 a 5 inch tube).
Now, if we fill the theorem with these numbers, we can find the length of our plastic. 1. 5^2+2.
5 ^ 2 = length or plastic ^ 2.
If we solve this equation, the answer is eight.
5, equal to 2. 9154. . .
We can go to 3 for our purposes.
We now have a piece of plastic 3 inch in length.
For my plastic, I used the packaging of some of the breadboards I purchased from radiowack.
Cut your plastic so you are 3 inch long (
As determined in step 3)
It\'s as wide as your tube, it\'s 1 for me. 5 inches.
Now mark the center of each side of the plastic you cut out with a permanent mark.
When done, cut the plastic into the best oval shape, and the edge is where you just marked the plastic.
This plastic is like a mirror that reflects the dots made of led into your eyes.
Place a hot glue bead on the short edge of the plastic and slide it into the tube.
Now cross the other end with your fingers, hold the plastic to the bottom of the tube, while keeping the other end at the top of the tube, right next to the opening ceremony.
After the glue dries, glue the other end of the plastic to the top of the tube with heat, right next to the opening.
Now, from the small road through the opening, cut a crack above the plastic for about three quarters (
Represented by the LED in the figure).
Placing LED modules (see next step)
In this slit, move the led until you can go through the end of the tube and see the point in the center of the tube.
It may take a while and you may need to fiddle with the gap to get it to work, but you should end up with it.
Once you put the LED where you want it, stick it in place with hot glue.
To make the LED module weld or reverse the red positive line, from the clip to the resistor, from the resistor to the long leg of the LED (anode)
And then the black wire from the clip to the short end of the LED (cathode).
Circuit diagram download instructions.
Open svg files with internet explorer.
Now you can decorate and personalize your sight as you like.
I wrapped my bag up with tape to make it look smooth and cover it with hot glue.
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