Datum Origin

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Example layout for a gear pair 2-9-05 -mrc
construction line points for gear teeth
large gear 16 teeth, 6.4 pitch dia
only need to show a few gear teeth elsewhere
just draw the crown and root circles and
pitch circle
center lines and reference lines are usually
dashed
shaft1.25 dia
1.26pitch
lapped joint gives a bit more strength and
is easy to cut
will need magnified detail of a few teeth to
determine profile
lantern gear 12 teeth, 4.8 pitch dia
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datumdimensions w.r.t origin
DatumOrigin
Scale 1cm 1 foot