F. Dimension Marking
The related parameters of gear have gotten through the
above algorithms, in order to help expressing the form of the
object, we produce the dimensional drawing.
This work mainly marked the diameter of the addendum
circle, dedendum circle, reference circle, the keyway depth
and width. The radius of reference circle is half of the
difference of the radius of the addendum circle and
dedendum circle.
Dimension marking find the intersection of twodimensional
geometric feature of gear curve graph and then
retracing geometric characteristics graph, the process is
mainly completed by the functions line, plot and text. The
dimensional drawing is shown in Fig. 5.