Copper tubing used for plumbing piping is available sized nominally, meaning that the outside diameter of the tubing is 1/8" (0.125 inches) larger than its stated size. In other words, 1" nominal copper tubing measures 1.125" inches in diameter. If you need to cut the pipe for your project, make sure that you use a tube cutter, clamping the pipe firmly and rotating the cutter around the pipe. It should take about 8 turns. Most nominally-sized copper tubing is available in four weights, or wall thicknesses, which is color-coded. Typically, though, residential projects will involve copper tubing of either Type L or M. Type L tubing is marked with a blue tag and is typically the most commonly used in commercial/residential installations. Type M is marked red and has the lightest wall that can be used for a pressurized system. Depending on your project, you'll probably need some combination of the following: Male/Female adapters, which are used to join a solder pipe to a threaded pipe. Reducing adapters, which are used to go from a larger size pipe to a smaller size. Elbow joints, which are used to turn corners, typically 90 degree bends, but also available in 45 degree bends. Tees and crosses, which are used to join a branch tubing to the main tubing, using a tee, or two branches in the case of a "cross." For potable water systems, lead-free solid core solder must be used. It is typically 95/5 (95% tin and 5% antimony), or an alloy of tin and a small amount of copper and/or silver, commonly sold in one pound rolls of 1/8" diameter wire. Solder with lead must not be used for potable water systems. This is typically a jelly with a zinc chloride or rosin cleaning component used to cover the cleaned surfaces of the copper to be soldered before assembly and heating. It is the function of the flux, upon heating, to facilitate further cleaning, exclude atmospheric oxygen, prevent re-oxidation, and to aide in wetting out the solder. Typically, a traditional electric soldering iron won't be hot enough to work with copper tubing. You'll need a heat source of sufficient output capacity to heat the assembled fittings and tubing to a temperature above that required to melt the filler solder, typically 400 to 500F (204 to 260C). For this reason, a propane/air, or acetylene/air torch fitted with a tip of appropriate size is most often used. Clean, dry cotton rags and a spray bottle full of water will complete the necessary soldering materials.
++++++++++
One-sentence summary -- Get copper tubing of appropriate diameter. Make sure the tubing is of the proper wall thickness for your project. Get the proper connectors and joints for the system you are building. Select solder. Obtain the appropriate solder flux. Get a heat source.

Leave it below the spot where you cut so it's out of the way until you need it. Make sure you slide the ring on first, or you'll have to remove the connector later on and start over. Not all connectors have separate crimp rings. Some connectors have the crimp ring already attached. Check which type you have. Hold the cable in one hand and the connector in the other. Then insert the conductor into the hold in the center of the connector. Continue pushing until the conductor sticks out just above the edge of the connector on the other side. This will take some pushing because the connector have to wedge in between the rubber housing and plastic layer. Try twisting the connector back and forth a little to work it onto the cable. If you're installing the cable outdoors, remember to use a waterproof connector. This is housed with rubber. the connector and wire. A crimping tool pushes the crimp ring completely inside the connector, securing the connection. Select the correct die, or width, for the cable you're using. Then insert the cable into the crimping tool. Squeeze the handle until you hear a click, indicating that the crimp is complete. Some crimping tools work differently. Follow the directions on the specific tool you use. These metal pieces could interfere with your signal or wiring. Check around the connector for any wires coming out. If you see any, use a wire cutter and trim them away.
++++++++++
One-sentence summary -- Slide the crimp ring over the cable. Push the connector over the cable so the copper conductor sticks out. Crimp Trim away any wire mesh coming out from under the connector.

Squinting can be a natural reaction to brightness but it can also be a habit that you have formed. Ask yourself whether you're squinting has caused any frustration, anxiety, or self-consciousness. Chances are that your social network has already mentioned something as they will notice it more than you because it may already have become ingrained. Habits are formed automatically from repetition so identifying squinting as a bad habit means that you have to make a conscious effort to prevent it from occuring. Notice whenever you are squinting and evaluate the setting. Do you squint whenever you're talking to your boss? Do you squint whenever you're meeting someone new? Chances are there is a cue or context that brings about your squinting. Keep a journal to record when you squint. After a few weeks you will clearly be able to see a pattern unless someone has already pointed it out to you. Whether you developed squinting as a way to cope with stress and anxiety or simply out of childhood boredom, ask yourself why you ultimately feel the need to squint. There is always a strong emotion associated with whatever triggers your bad habit. For example, many people chew their nails because they are anxious so ask yourself what emotions you are feeling when you catch yourself squinting. The emotions may be hidden deep beneath the surface so take the time to evaluate the context. Talk to your social circle to get at the heart of the matter. Habits are difficult to break especially if you have been doing it most of your life. Once you know what triggers your blinking and what ultimately motivates it, make a conscious effort to replace the habit with something more positive. For example, if you squint when you are at parties because you are insecure that no one will speak to you, try smiling instead. This presents self-confident and open body language. Even if you only attempt to stop squinting, positive reinforcement will make each successive attempt easier. Whether it's verbal praise or a material reward, remain positive in your pursuits. Rewards rather than penalties will make it easier to break bad habits.
++++++++++
One-sentence summary --
Identify squinting as a habit and not a necessity. Identify the cue that triggers you to squint. Evaluate why squinting has become a habit in response to your trigger. Think of a positive alternative action to replace your bad habit. Reward yourself when you don't squint.