Hatch is an important command in CAD drawing, with Hatch, we can easily fill an enclosed area.

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Offset is a frequently used command which helps us create graphics of the same kind such as concentric circles, parallel lines and so on. This post introduces the basics of Offset command by drawing the section of axle hole.

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What is Byblock and Bylayer in CAD?

Objects in CAD have several basic attributes such as color, linetype, line weight and so on, these attributes control the display effect and printing effect of graphics. So setting attributes of objects properly can make graphics more clear, more importantly, we can get the best printing effect. When setting the color, linetype and line weight of the objects, we can see the two options of Byblock and Bylayer in the list. However, even people with some CAD knowledge could be confused by them, not mention how confusing they can be to CAD newbies.

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