motion control systems are being applied in all kinds of
new and interesting ways. The
following is an example of a unique application using two
axis of coordinated motion control.
project included a dual axis motion controller, a micro PLC, a
PC, and a graphics tablet. The goal of this machine was to allow
a person to create decorative patterns for cakes of virtually
any design with up to three colors that could then be reproduced
as many times as desired on cakes in a commercial bakery.
operator can select and change colors on the graphics tablet and
draw the icing patterns using the tablet's pen. The designs are
recorded to disk on the PC for later recall when operating the
decorating part of the machine.
graphics tablet was programmed not only to allow color selection
while drawing but also to specify file names for storing on the
PC so that all input could be done from the tablet without having
to use the computer keyboard.
reproducing a pattern the cake decorating part of the machine
selects the appropriate color and moves the nozzle to the starting
location. Then it lowers the nozzle, opens the valve and discharges
the icing reproducing the pattern drawn with the graphics tablet
pen in a bead of icing on top of the cake. This process is repeated
for each color and pattern until the entire decoration design
some variation and control over the thickness of the icing is
possible because the machine reproduces the pattern at the same
speed at which the lines were originally drawn using the graphics
some additional examples of advanced motion control systems click
on the following links: