How to make a pointer?
Before you make a pointer, you need to decide on its appearance. After all, it can be laser or conventional. All of them have their advantages, so what exactly to choose, it's up to you.
Making a laser pointer with your own hands
Before you make an azure pointer you need to prepare materials in advance. Then the work will proceed quickly and without long interruptions. It is important to note that if you want to make a really powerful laser pointer, then you will need to find a necessarily writing non-working DVD. Other elements will also be needed.
Required additional materials:
- chinese lantern
- soldering iron
- button (from any radio)
- thin wire
- condenser for 100 microfarads and 10 picofarads
- voltage regulator model KR1158EN3V
Remove the optical element from the DVD drive. Having done this, you will see two laser diodes in it, you need to detach not an infrared, but a DVD. After that, be sure to wrap its legs with wire, thus, it will be possible to avoid its damage by static electricity.
Find the 3 pins on the back of the DVD diode. The first is an output of +2.6 - 2.8 V. The next is a minus, but of the same voltage, while the third carries no charge.
Start building the circuit. Solder a non-polar capacitor to the laser diode. After that, you can remove the wire from its legs. Then solder the polar capacitor and voltage regulator, where the first contact is the output, the second is common and the third is the input. It is important to remember about the positive polarity of the voltage in order not to damage the circuit.
Assemble the stabilizer and two capacitors together, then attach the button, the battery and the optical part of the flashlight. After that, your product will be ready for use.
Now you know how to make a powerful laser pointer, as you can see, it is absolutely not difficult. The main thing is not to deviate from the recommendations, and if you want to make it out of wood, then the tips below will be useful to you.
Making a wooden pointer with your own hands
Making a pointer from wood is very simple. It takes no more than 30 minutes if you prepare everything you need in advance.
You will need:
- sandpaper (small and large)
- simple pencil
- wooden batten made of strong wood 70 cm long and with a section of 2.5x2.5 cm
Take the rail and at its both ends with a pencil draw an octagon, so that it cuts off all four corners on each side. In the resulting octagon enter the circle, it must touch literally all of its sides.
Using a plane, remove from the slats along the entire length of the face. After that, at the formed octagon, cut each corner along the length of the pointer.
Take a turn in a plane on all the corners of the hexagon. It is necessary to perform such actions until alternately the rail has a cylindrical shape.
At one end of the product, draw a horizontal and vertical axis, with the result that you will have a center point. Retract from it approximately 5 mm and draw a circle, its diameter should be 1 cm. After that, the upper end of the pointer will be ready.
Process the workpiece with a plane so that it has narrowing. To make this easier, mentally divide it into three equal parts vertically. In the second and third sections, the pointer should gradually taper towards the upper end.
Take a large pelt and walk it over the entire pointer in order to achieve the smoothest possible surface. Then do the same, but fine sandpaper. Once this is done, varnish your wooden pointer with a lacquer, you can use both transparent and with a touch. Then leave it to dry completely for 12 hours. After that, you can use it for its intended purpose.