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Saturday, 19 April 2008 |
By SimranSimran
Learn how to hold the computer mouse:
Hold the sides of the mouse with your thumb on one side and ring finger or pinkie, which ever feels more comfortable to you, on the other side. Your index finger goes on the left button and your middle finger on the right button. (Some computer mice only have one button, some have several, some have a wheel which you can use your middle finger to depress the wheel then turn it up or down to scroll pages very quickly or slow depending on how quickly you turn the wheel. Personally I love the wheel and would not have a mouse without it!) When you are told to 'click' use the button under your index finger, or the left button.
Learn how to move the computer mouse:
Slowly slide the mouse around on the mouse pad. See what happens to the arrow on the screen as you slide it around.
Do you need a mouse pad:
You should have a mouse pad under your mouse, (although the new optic mice do not require one). You will have an array of choices when purchasing |
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Last Updated ( Saturday, 19 April 2008 )
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Friday, 18 April 2008 |
By Billy Kite
Manufacturers, which produce various steel products, require punching of sheet metal to meet design requirements. Technology has entered the scene of this once manually operated process. This not only increases the speed of production but it gives a new meaning to the term "accuracy" in the positioning of the specific operations. This has been accomplished with the introduction of CNC or computer numerically controlled machining centers.
Punching of sheet metals is a steel fabrication process utilizing 'tools and dies'. A punch press is the machine which performs the work of shaping and cutting. A turret houses a set of various tools on the machine, depending on the type of punching required.
The punch press, a type of fabricating machine, presses sheet metal against a die with extreme pressure and at very rapid speed of positioning. Sheet metal, now pushed into the die, assumes the shape and design of the specific dye. Cut away, is any excess metal from the newly shaped piece of sheet metal.
Punch presses use hydraulic, pneumatic, or electrical power in their operation. This power exerts immense pressure to press the shape into and perform the cutting of the |
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Last Updated ( Friday, 18 April 2008 )
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