feature that greatly contributes to
the reliability of the switch is the
slightly undersized hole for the
screw head. This arrangement
results in a head that naturally
resists rotation.
When this is combined with
the contact method allowing for
slight compression, it means
you’ve got two forces acting to
prevent the switch from
accidentally turning on or off.
After testing the switch, I
intend to use it in all of my future
Insect class robots. SV
FIGURE 4.
The screw
head is
located
behind the
drive wheels
to keep a
wrench and
fingers away from
the weapon bar.
FIGURE 3. Tapping the holes
in the switch for a 4-40 screw.
FIGURE 5.
Amp testing rig for
the power switch, built
and operated by Rob Purdy
of Western Allied Robotics
( www.westernalliedrobotics.com).
SERVO 04.2013 31
