| Summary: | In this research, a computer-aided drawing system of spur gear was developed. An
auto LISP programming language embedded within the AutoCAD design package
was used to develop a new program to create a 3D model of a spur gear in two main
stages. In the first stage, the developed program of spur gear allows automatic 2D
spur gear drawing generation using the technique that depends on the half tooth
thickness at the pitch diameter. In the second stage, inner profiles of a 2D spur gear
views are used to create a 3D model of a spur gear. The developed program helpful
for the user in drawing the spur gear modelling, due to less work and time to be spent
when compared with the conventional approach, and it also improves a high degree
of accuracy of spur gear modelling. The spur gear resulting from the prepared gear
drawing system can also work with other popular CAD software.
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