To aid in the task of puppeteering the motions, Brian
has constructed a couple of mechanisms which he refers
to as an AMS, or Articulated Model with Sensors (Figure
9 and Figure 10). These incorporate multiple
potentiometers located at the pivot points which convert
the motions of the model into the necessary code for the
Activity boards. This allows
us to instill very lifelike
movements into the
The Eyes are the
Windows to the
Ever since I discovered
the electronic eyes which use
mini screens created by David
I have chosen to use the 3D printed enclosures
recommended in the original tutorial (see Resources) to
help protect the screens. Although these do a great job,
you are still faced with the question of how to mount them.
Robert came up with an ingenious solution which allows for
fine adjustments to the eye’s location, yet keeps them firmly
in place. You simply add a couple of springs attached to the
existing machine screws and wrap them around your
supporting structure. You can now fine-tune their positions
and know they will stay where you place them (Figure 13).
DMX Lighting and Control
Proper lighting effects allow us to manipulate and
control where our audience will be looking. It gives us the
opportunity to only allow them to see what we want them
to. Proper and adequate lighting can make or break a
12 SERVO 10.2016
Figure 10. Arm AMS helps
puppeteer the smooth
Figure 11. I see you!
Figure 12. Ready to add a little more hair, eyeballs, and
paint highlights. Figure 13. Putting springs to work in another way.
Figure 9. I think I want to look over there.