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1. Download Free AutoCAD Tutorial Object-Snaps.dwg and Open. 2. On the status bar, make sure the following settings are on: Object snap Dynamic input 3. To set object snaps: On the status bar, right-click Object Snap. Click Settings. In the Drafting Settings dialog box, Object Snap tab, set the running object snaps as shown in the following illustration. Clear all object snaps in the column on the right-side. Click OK. 4. To draw a line: On the Home tab, click Draw panel > Line. Select the endpoints as shown in the following illustration. Notice the appearance of the object snap. Press ENTER to end the Line command. Tip : You may need to use zoom and pan in order to view and snap to the correct points. 5. Press ENTER to repeat the Line command. Use the Endpoint object snap to create another line right next to the previous one. 6. To draw a circle: On the Home tab, click Draw panel > Circle. Touch the outer circle and you should see the Center snap ...

Ten Ways to Do No Harm Taken from AutoCAD 2008 for Dummies by David Byrnes Be Precise I remind you that using precision techniques such as snap, object snaps, and typed coordinates is a fundamental part of good CAD practice. Don’t try to use AutoCAD like an illustration program, in which you eyeball locations and distances. Use one of the many AutoCAD precision techniques every time you specify a point or distance. Control Properties by Layer AutoCAD gives you two different ways of controlling object properties such as color, linetype, and lineweight: by layer and by object. Unless you have a really good reason to assign properties by object — such as instructions from your company’s CAD manager or the client for whom you’re creating the drawing — use the by-layer method: Assign colors, linetypes, and lineweights to layers, and let objects inherit their properties from the layer on which they reside. Don’t assign explicit color, linetype, or lineweight to objects. Know Your Dra...

Chapter 2 CONDUCTORS AND INSULATORS Electric conductors are materials used to carry or allow the flow of electric current. Insulators on the other hand, are those that resist the flow of electric current.

Chapter 1 INTRODUCTION TO ELECTRICITY Electricity is a form of energy generated by friction, induction or chemical change having magnetic, chemical and radiant effect. In short, electricity is electrons in motion. Electricity consists of the following: Electron Proton Neutron Electron is the negatively charged particle of an atom which is also referred to as the negative charge of electricity. Proton is the positively charged particle of an atom which is also referred to as the positively charged particle of an atom which is also refereed to as the positive charge of electricity. Neutron is the particle which is not electrically charged.   ELECTRICAL TERMS VOLT or VOLTAGE is the electrical pressure that cause the electrons to move through a conductor. In short, voltage is the electromotive force. It is named after an Italian scientist, Alessandro Volta. AMPERE the standard unit in measuring the strength of an electric current named after And...

INTRODUCTION PLUMBING is considered as the art and science of installing pipes, fixtures and apparatus in buildings to convey water and other substances including the discharge of waste, water and other liquids, gasses and other ingredients affecting the health and sanitation of life and property. PLUMBER is the title given to a person who is a skilled worker in the field of sanitation, who fits and repairs the pipes and fixtures of a water system. It is a word derived from a Roman term Plumbarium which in turn was taken from the Latin word Plumbum meaning lead. Lead is a metal commonly used as a plumbing material and preferred for its twin properties of malleability and resistance to acid.