advantage of your servos, you will want to pick up a
You can never have too many servo extensions
for when you want to place your controller away
from your servos. When placing your order, be sure
to get extensions which have a male and a female
connector, not servo cables. I am always in need of
more extensions, but now have more servo cables
than I will use in a long time.
When running your wiring, it is recommended
that you err on the side of them being too long.
You want to be sure you have enough slack through
the entire range of motion of your mechanism. A
bit of extra security can be had by adding cable
locks to keep any extensions from coming detached
There are times when you want a single
controller channel to send signals to two servos.
This is a case where a splitter comes in handy. Both
servos receive the same commands, but it is one
option for increasing the number of servos a single
controller can handle.
You have your choice of a variety of servo arms
that come with your servo. There are other options
available for purchase separately if the stock ones
do not fit your needs (Figure 16). Check out some
of the alternatives at http://tinyurl.com/hdrzb4d.
You do need to pay extra attention to the spline size
to make sure you get the proper one.
You can place your servos a distance away from the
point where they are creating movements by using cables
running inside of a housing such as those available from
Sullivan Products (see Resources). Watch for an upcoming
article showing exactly how to incorporate these into your
Now You Can Servo Yourself
If you have yet to take the plunge and include servos
in your projects, now may be the time. I especially
encourage you to check out how digital servos can help
you become a more successful builder.
Eventually, we may have no choice but to use digital
servos as this seems to be the direction the industry is
trending. So, why not take advantage of all they have to
Have you incorporated servos in a unique way into
one of your projects? Do you have questions or comments
you would like to add to the discussion? Then, visit the
DIY Animatronics Forum at http://tinyurl.com/qjeehjs
and join the conversation. We can all contribute our ideas
in order to benefit the community!
Until next month, MAY THE PASSION TO BUILD BE
WITH YOU! SV
SERVO 02.2017 35
Figure 15. Secure your wiring connections.
ServoCity/Actobotics — http://tinyurl.com/zzy2ugu
Hitec RCD Programmer — http://tinyurl.com/j2rv38d
My You Tube channel — http://tinyurl.com/nma2doj
My Website — www.halstaff.com
DIY Animatronics Forum — http://tinyurl.com/qjeehjs
Figure 16. Pick a horn, but not just any horn.