look! I don’t want it to look shiny and new.
We begin the assembly by tackling the jaw first. It will
be securely attached by drilling two holes in the jaw and
then through the skull. A small zip tie will then be
threaded through these holes and loosely connected
(Figure 14). We will tighten these up when it’s time to
finalize the installation, so leave them loose for now.
Choose a bit that is slightly larger than your zip
tie. A 1/8” drill bit works for the ties I use. You don’t
want it any larger than necessary as it will be sloppy.
You do want the hole large enough to allow the zip
tie to move freely, however.
I like to grind down some of the interior of the skull
before installing the servo bracket. This will allow the
servo to rest lower in the skull, and it will take less material
to build up a level mounting surface (Figure 15).
The bracket is attached by laying a bed of ProPoxy
and then seating the bracket. If you have not yet had the
pleasure to work with this product, I suggest you stop
what you are doing and immediately purchase some. (On
second thought, why don’t you finish reading this article
first and then go place your order!)
ProPoxy is on my short list of need-to-have products. It
can be helpful in solving a variety of problems you will
encounter as you build your own mechanisms. It consists
of two parts that — when combined — can be shaped,
sanded, drilled, and tapped to provide mounting areas for
many situations. It makes me a better builder and saves
me time. There is always a tube or two on my shelf.
Once this dries, the bracket should be firmly attached.
If you would like some added security, you can drill and
tap the ProPoxy to accept a couple of screws. This is one
of the nice features of using this material. You can even
make the bracket removable by coating it with a thin layer
of Vaseline™before placing it in the ProPoxy.
The addition of screws will be the method used to
anchor it, which allows it to be removed in the future if
The servo should be assembled with an arm in place
in order to align it properly. Then, a wire will be attached
from the servo arm, through a hole drilled into the skull,
and into the jaw. Take a minute to check out the location
September 2017 45
Scary Terry's website with the original circuit
Free audio editing software
LAME software DLL that allows Audacity to import/export
Dr. Terror Eyes
Halloween and HauntFest Show
You Tube Video
Red Tie Photography
■ FIGURE 16. Enlarge the slot as needed. No one can
■ FIGURE 17. One eye prepared for installation.