Читать книгу Electronics All-in-One For Dummies - Lowe Doug, Doug Lowe - Страница 38

Basic hand tools

Оглавление

For starters, you’ll need a basic set of hand tools, similar to the assortment shown in Figure 3-3. Specifically, you’ll need these items:

 Screwdrivers: Most electronic work is relatively small, so you don’t need huge, heavy-duty screwdrivers. But you should get yourself a good assortment of small- and medium-sized screwdrivers, both flat-blade and Phillips head.A set of jeweler’s screwdrivers is sometimes very useful. The swiveling knob on the top of each one makes it easy to hold the screwdriver in a precise position while turning the blade.FIGURE 3-3: Basic hand tools you’ll want to have.

 Pliers: You will occasionally use standard flat-nosed pliers, but for most electronic work, you’ll depend on needle-nose pliers instead, which are especially adept at working with wires — bending and twisting them, pushing them through holes, and so on. Most needle-nose pliers also have a cutting edge that lets you use them as wire cutters.Get a small set of needle-nose pliers with thin jaws for working with small parts, and a larger set for bigger jobs.

 Wire cutters: Although you can use needle-nose pliers to cut wire, you’ll want a few different types of wire cutters at your disposal as well. Get something heavy-duty for cutting thick wire, and something smaller for cutting small wire or component leads.

 Wire strippers: Figure 3-4 shows two pieces of wire that I stripped (removed the insulation from). I stripped the one on top with a set of wire cutters and the one on the bottom with a set of wire strippers. Notice the crimping in the one at the top, at the spot where the insulation ends? That was caused by using just a bit too much pressure on the wire cutters. That crimp has created a weak spot in the wire that may eventually break.YOU GET WHAT YOU PAY FORWhen it comes to tools, the old mantra “you get what you pay for” is generally true. Good tools that are manufactured from the best materials and with the best quality fetch a premium price. Cheap tools are, well, cheap. The price range can be substantial. You can easily spend $20 or $25 on decent wire cutters, or you can buy cheap ones for $3 or $4.There are two main drawbacks to cheap tools. First, they don’t last. The business end of a cheap tool wears out very fast. Each time you cut a wire with a pair of $4 wire cutters, you ding the cutting blade a bit. Pretty soon, the cutters can barely cut through the wire. The second drawback of cheap tools is a consequence of the first: When tools wear out, they tend to damage the materials you use them on. For example, tightening a screw with a badly worn screwdriver can strip the screw. Likewise, attempting to loosen a tight nut with a worn-out wrench can strip the nut.There are a few situations in which I would endorse spending money on cheap tools. One is as a way of getting started in this fascinating hobby as inexpensively as possible. You can always start with cheap tools, and then replace them one by one with more expensive tools as your experience, confidence, love of the hobby, and budget increases. Another good reason to buy cheap tools is if you’re absentminded (like me) and tend to lose things. There’s not much point in buying expensive tools if you’re going to have to replace them every few months because you keep losing them!FIGURE 3-4: The wire on the top was stripped with wire cutters; the one on the bottom was stripped with a wire stripper. To avoid damaging your wires when you strip them, I suggest you purchase an inexpensive (under $10) wire stripping tool. You’ll thank me later.

Electronics All-in-One For Dummies

Подняться наверх