Dress in clothes and shoes, can accumulate electrostatic charge. Then briefly touch the radiator. This way you will prevent damage to the laser diode by static electricity.
Remove the cover from the pointer and remove the battery. Fold them so that they do not touch each other.
Remove from the device insulating cylinder of film. Save it.
Remove the pointer from the nozzle and set it aside.
Ratibora measure the parameters available in the emitter pointer external thread on which is screwed a nozzle. If you have no ratibora, just try all the available nuts of a similar size, until you find the one that is screwed on this thread.
Wrap the instrument several layers of fabric. Lightly, so as not to deform the casing, hold the wrapped pointer in the vise thread up.
Screw on the thread nut. Then, using pliers, keep piling it on. Hold the pliers and the nut smoothly, avoiding bias. Gradually the radiator out of the case and will remain on the nut.
Remove the nut from the radiator. Now you can close the button (but not the resistor!) and submit to emitter voltage of the order of 4 In three large series-connected batteries AA or AAA via an additional resistor of about 100 Ohms and a large, comfortable switch. Pre-parallel to the laser diode, connect a capacitor with a capacitance of about 0.01 UF.Brightness pointer remains the same, but the cost of batteries will drop significantly.
Measure the current through a pointer. It should not exceed 35 mA. If necessary, adjust the value of the resistor. Connect and disconnect the milliammeter or equivalent instrument combined exercise with the power disconnected. Remember also about the need to protect laser from static electricity.
If a laser diode is unpackaged, exercise when working with the radiator special care not to brush it off.
Under no circumstances do not point the laser beam at eyes, people, vehicles and Pets.