Today we learn how to make Pencil Soldering Iron.
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So lets start,
- Take a pencil and make a hole in the pencil from upside and screw the nut(standoff hex nut) in it.
- Take a usb cable and cut it from one side (not usb side).sold some extra wires next to usb cable.
- put the mouth of one wire in the nut and screw a pencil lead in it.
- Take a spring(you can get it from a ballpoint) and attach the second wire to one side of spring.
- Put the half spring in the lead in such a way that spring not touch the nut/nut wire.
- Adjust the wires and attach them to pencil with glue.
- Attach the usb to pc or powerbank and how it working.
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