Building scale drivers has been a
fun and creative process. Unless you stick with the same 1/6
action figure, everyone will be different. Not that that's a bad
thing but when you tear them down to put in a micro servo you
have to start from scratch for each one.
Each body that I have is
designated either a pilot or a co-pilot. I have the pilot's
servo wired to respond to the same input signal direction as the
front steering and the steering wheel of course, but with the
co-pilot I have wired the input to turn the opposite direction,
thus breaking up the choreographed appearance.
You can see in this photo I have
already loosened the left arm joints on this driver and strung
in a piece of Kevlar string to keep it in place. Once his hand
is attached to the steering wheel, you don't want any resistance
against the steering wheel servo.
*Pro tip* Always verify the
direction of your servo. On this one the head would have been
turning the wrong direction, it's WAY easier to do it now than
to have to tear the entire project apart to fix it.