Mini battery operated soldering iron
The main advantage of this mini soldering iron is that it is powered by a 3.7 V battery. It is not tied to the network and can be safely taken with you. Of course, its power is not large, but it is enough to solder the wires or solder some fallen off radio element.Then take a telescopic antenna from any receiver, joystick or radio and disassemble it. We need to find a tube, which will tightly enter our veins from the wire. Once the antenna's knee is selected, the remaining parts can be removed.Using a machine tool or manually file, sharpen a thick core of a wire under the cone - it will be a sting for soldering.Cut off with a hacksaw about 1.8 cm.Cut off about 4 cm of the tube that was taken from the antenna.Take the nichrome wire and measure 10 centimeters, cut off the rest.Take a wire with a diameter of 1.2-1.8 mm.It is only needed for winding the coil, in the future we will not need it. Its material does not matter. We wind the nichrome wire, leaving the ends about 1 centimeter apart.Then take a thin core of copper wire, fold it in half and twist with nippers.Let's roll the nichrome wire into the resulting ear and twist the ends around the copper wire. And for now, let's postpone.Take the tube from the antenna and the cambric from reinforced fiberglass we will sell inside the tube. If the cambric you have a larger diameter - you can make a longitudinal incision and fit the diameter of the tube.Take everything together and assemble.We pass the nichrome coil with wire into a cambricum, so that only a 1 cm long wire sticks out from the outside. From this centimeter we make a coil around thermal insulation.It will be a thermoelement.Take our stinger and insert it into the tube from the antenna.On the other hand, insert our thermocouple until it stops. Take a round piece of wood and saw off about 2-3 cm.
And so, what do you need to make a mini soldering iron?
- Single core wire with core diameter 2 mm.
- A piece of telescopic antenna.
- Nichrome, wire 0.2 mm. 10 cm long.
- Reinforced fiberglass cambric.
- 3.7V battery.
- Battery compartment for this battery.
- A piece of round wood.
- Thin single-core wire 0.3-06, diameter (can be dissolve the multicore).
Manufacturing mini soldering ironTake a thick single-core wire with a diameter of 2 mm section.Remove the insulation with a knife of a knife or some other way.
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