By Brian Jepson
Examine the basics of soldering and decide up a necessary ability for construction digital contraptions. You’ll notice how one can preheat and tin your iron, make an excellent solder joint, desolder cleanly (when issues dont particularly move right), and the way to exploit aiding arms to carry parts in position.
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Additional resources for Learn to Solder Tools and Techniques for Assembling Electronics
Soldering an LED How to Solder 17 Trimming Your Leads After you solder a component in place, you need to tidy things up. Grab the cutters from your kit, and trim the leads as close to the solder joint as possible (see Figure 2-11 and Figure 2-12). Don’t cut into the solder joint; the idea is to trim the excess wire lead. When you clip it, the wire lead will fly away from the clippers very fast, and could injure someone. The best way to keep this from happening is to use one or two fingers to hold the lead you’re clipping.
It takes time, and you did things incorrectly, and maybe you even made mistakes that required desoldering. Let your students learn from their mistakes, and let them take their time. No Food or Beverages Even with lead-free solder, there are chemicals in the flux that aren’t good for you. If you allow food or drink near the work area, it could get contaminated. Keep food and drink away from where you’re working. Make Sure There’s Plenty of Light The components you work with while you solder are small, and hard to see.
Figure 2-16 shows the start of a bridge: feeding the solder into the gap between solder joints. Figure 2-17 shows a bridge being formed. 22 Learn to Solder Figure 2-16. Feeding solder into a gap Figure 2-17. Forming a bridge across the gap How to Solder 23 Relieving Strain on Cables If you have something heavy dangling off your board, such as a battery box, it’s very likely that the solder joints will come undone. If you pass the wires through the large holes on the board before soldering them down (Figure 2-18), you can add some strain relief (Figure 2-19) that will help prevent this from happening.