CHAPTER 22 ■ SOLDERING AND CONNECTING- Twist the wire around itself to provide a firm grip on the terminal (see the right
side of Figure 22-3). Serrated needle-nose pliers work well for this task.
Here is the first rule of soldering: Whenever possible, the pieces to be joined should hold themselves
together and have as much contact with each other as possible.
The solder should be a bonus. Don’t try to connect pieces that aren’t touching by creating a solder bridge.
Don’t rely solely on the holding strength of solder to connect pieces that will undergo mechanical strain.
- Attach the black wire to the negative motor terminal in the same manner.
Although it might seem that these connections are firm enough as is, these connections would
eventually loosen and pull apart during use unless soldered.
Holding the Motor Firmly and Preparing the Soldering Iron
- Place the motor in a helping hand (see Figure 22-4) or vise, so that it doesn’t
move during soldering.
Figure 22-4. Helping hands holding motor and wire in preparation for soldering
- Follow the steps listed in the previous chapter for preparing the sponge, heating
up the iron, cleaning the tip, and tinning.