The eccentric and DVA masses are machined
pieces of brass stock which we were given for free from the
RIT machine shop. For the platform a machined aluminum bar
is used that has four #8-32 clearance holes drilled at each
corner, in which eye bolts are mounted [3]. A tapped #8-32
hole on the bottom in the center of the platform provides the
mounting location for the eye bolt from which the DVA is
suspended. Motor clamping to the platform is accomplished
using two 2" #8-32 cap screws from the machine shop in
tapped holes. A Lexan motor mount was made and sanded to
give a frosted texture after being recycled from a previous
project