What scale is known as "general purpose" scale and is used for drawing buildings and machine parts?
Also could you answer What substance is added to graphite to make a drawing lead harder? What are the instructions and commands called, that the CAD operator uses to tell the computer what to do and how to do it? and The cross hairs that the CAD drafter manipulates on the computer screen, are called what?
Graphite 'leads' are combined with clay.
Most modern 'leads' for drawing on mylar film
are plastic and carbon black.
For architecture the most common scales are 1/8" = 1'-0",
and 1/4" = 1'-0", but others are used.
For machine parts it depends on the size of the part and the detail involved.
CAD commands? - The book is 3" thick.
" AutoCad for Dummies" is a good start point.
The 'cross hairs are called the cursor.
AutoCAD Drafting Input Methods
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