How to make a pointer?
Before you make a pointer, you will needdetermine its form. After all, it can be laser or conventional. They all have their own advantages, so it's up to you to decide which one to choose.
We make a laser pointer with our own hands
Before you make an azure pointer to youyou will need to prepare the materials in advance. Then the work will proceed quickly and without long breaks. It is important to note that if you want to make a really powerful laser pointer, then you will need to find a DVD writer that is not necessarily working. Other elements will also be needed.
Necessary additional materials:
- Chinese Flashlight
- soldering iron
- button (from any radio)
- thin wire
- a condenser per 100 microfarads and 10 picofarads
- voltage regulator of model KR1158EN3V
Remove the optical element from the DVD drive. Having done this, you will see in it two laser diode, you need to unfasten not the infrared, but the DVD. After this, be sure to wrap his feet with a wire, so you can 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 assembling the circuit. Solder the nonpolar capacitor to the laser diode. After that, you can remove the wire from its legs. Then solder the polar capacitor and the voltage regulator, where the first contact is the output, the second is common, and the third is the input. It is important at the same time to remember the positive polarity of the voltage, so as not to damage the circuit.
Collect the stabilizer and the two capacitors together, then attach the button, the battery and the optical part from the flashlight. After that, your product will be ready for use.
Now you know how to make a powerful laserthe pointer, as you can see, is not at all difficult. The main thing is not deviate from the recommendations, and if you want to make it from a tree, the tips given below will be helpful to you.
We make a wooden pointer with our own hands
To make a pointer from a tree is very simple. This takes no more than 30 minutes, if you pre-prepare everything you need.
You will need:
- skins (small and large)
- simple pencil
- wooden rack made of strong wood 70 cm long and 2.5x2.5 cm cross-section
Take the rod and at both ends with a pencilDraw an octagon so that it cuts off all four corners on each side. In the resulting octagon, enter a circle, it should touch literally all of its sides.
Using a plane, remove from the slats along the entire length of the face. After this, cut off each corner along the length of the pointer at the formed octagon.
Walk through the plane in turn at all corners of the hexagon. Proceed as follows until the rack is cylindrical in succession.
At one end of the product, draw a horizontal andvertical axis, as a result, you will be scheduled a central point. From it, retreat approximately 5 mm and draw a circle, its diameter should be 1 cm. After that, the upper end of the pointer will be ready for you.
Process the workpiece with a planer so that ithad narrowing. In order to make it easier to do this, mentally divide it into three equal parts vertically. On the second and third segment, the pointer should gradually narrow to the upper end.
Take a large skin and walk it aroundpointers in order to achieve the most smooth surface. Then do the same, but with a shallow skin. Once this is done, cover your wooden pointer with varnish, you can use it as transparent or with a shade. Then leave it to dry completely for 12 hours. After that, you can use it for the intended purpose.