.jpg) |
I was contacted by
Ted Lawson
an art fabricator in New York to see if I could engineer a
small toy scale electronic piano with colored interactive lighting,
each key illuminates the base in an unique color from red to
violet. This was to be built as an artwork edition for the
Guggenheim Foundation fundraiser in the
fall of 2009. The artwork would be given to a select
group of donors at the fundraiser. The design constraints were pretty
stringent; there was a short lead time, and it had to be
very inexpensive.
I began by prototyping a simple circuit that would create a
relatively pleasing tone with a slight tremolo to add some
charm.
My next step was to build a working prototype circuit board
in the desired shape and size that the artist-designer had specified.
The design uses touch pads for each key because they are
much cheaper than buttons. |
 |
 |
| After some testing I
quickly learned that the 2 small coin type batteries I had
used would
not have enough power for the lights and sound. The design would need 4 AAA size
batteries instead. So I re-designed the board to accommodate
the larger batteries (below). The colored LEDs are in
a circle to the right of the miniature black piezoelectric
speaker in the image below. |
 |
| The clock was ticking
at this point since we still needed time to run a final
prototype before production. The artist-designer decided that
the circuit board had to be a color other than green and
should have very specific artwork on it that he would design. We explored the
various color options, settling on basic black with white
art. I did some research and found a
circuit board manufacturer that was willing to integrate his
artwork from a pdf file into the white silkscreen layer of
the circuit board and print a black solder mask layer.
The manufacturer went to great lengths to incorporate this
design into the board and it paid off despite their first
reaction that they simply could not do this. The artwork creates a clear correlation between the notes
and their corresponding colors. |
 |
| Meanwhile art fabricator
Ted Lawson was struggling with how
to make the 1 inch thick translucent plastic base that would
transmit the colored lights out to the sides of the piano in
a cost effective way.
It was ultimately fabricated from 1 inch thick acrylic sheet,
hollowed out with an NC mill and cut out with a water jet to
get the matte exterior. This job became an endless series of difficult challenges
for both Ted and myself as the deadline loomed over us and
fabricators kept running behind for a variety of reasons. |
_small.jpg) |
| Ultimately the
project was completed at the very last minute and I think it
came out very well despite all the challenges. It is a
charming toy like piano that plays notes and lights up in
attractive colors. I have been told that the
Guggenheim donors appeared to enjoy it
at the fundraiser event. |