Archives for category: Kate Watkins

Well, our workshop was super successful if you don’t count the lack of students.  We only had one signup and he didn’t show for the actual event.  We ended up playing with the nitinol a bit and talking to Paola about how to adapt it for kids.  Here are some images from what we made:

This slideshow requires JavaScript.

Here are the videos:

This slideshow requires JavaScript.



Here is the “final” documentation for our final project. I enclose final in quotations since this project will continue to grow as we explore more options for sound, materials, and installation possibilities.

After a few snags in materials and construction, Paola offered us a fantastic solution. She suggested placing fabric around the boxed structure and focus on using the materials that we know work (i.e. the elastic), instead of forcing the materials we considered more aesthetically in line with our concept. As mentioned in a previous post, the elastic works much better in getting a dynamic range from the painted on liquid graphite; the other materials, such as spandex and jersey, ended up breaking the connection too much after a few uses.

Below are the videos documenting our first working prototype for the final piece and a bit of user testing:

Overview:
For these prototypes, we painted the liquid graphite (no base) directly onto small piece of each substrate, then connected them to Arduino. Overall we found that the sonic success of this project is heavily dependent upon the fabric used. The woven jersey was the least responsive to the ink; it cracked under the pressure of pushing thereby losing the connection needed to sustain the connection. The spandex was very responsive; it did not crack and held the connection. The black elastic was by far the most responsive, but more out of line with our original concept. Our next step is to try silkscreening the pattern onto the fabric to see if it will hold the connections better.

Spandex

The properties of spandex are friendlier than the jersey. The material absorbs the paint, so cracking is not an issue at this point in the usage process. The only “faulty” aspect is the warp of the fabric where the paint is, but I think this can be exploited with a different pattern printed onto the material.

Elastic

This test went extremely well; the elastic absorbs the graphite thereby increasing and solidifying connections.

Woven Jersey

This is a first prototype for our final project in Soft Circuits. As you can see, jersey doesn’t hold the paint very well; all of the cracks prevent any type of connection. However, before the cracks occurred, this design produced a much more dynamic range of sound than a simple strip.

This slideshow requires JavaScript.



Materials:
Liquid graphite
Fabric Substrate
(shown here: woven jersey, elastic band, spandex)
Paint brush
Electrical tape

Alis Cambol

Vectors show at Bryce Wolkowitz Gallery


State Boundaries as Audio Waveforms


Optical Sempahore

Assignment : Connect one of your paper or fabric switches to an Arduino digital pin and have it turn on an led when the switch is pressed. Use the Arduino Button code find in the Example menu.

This slideshow requires JavaScript.

Push-down with LED & button:



Push-down with LED & soft switch:


Push-down with LED & soft switch using AnalogInput Code (using PMW pin)

soft switch materials:
-fabric
-conductive fabric
-velostat
-alligator clips

button switch code
sourcecode
analogInput switch code (PMW pin)
sourcecode

Assignment 1: Connect one of your paper or fabric switches to an Arduino digital pin and have it turn on an led when the switch is pressed. Use the Arduino Button code find in the Example menu. Document your results in a video, upload to the class Vimeo account and post on the blog.

This slideshow requires JavaScript.

Pull-up with LED & button:



Pull-up with LED & switch:

soft switch materials:
-fabric
-conductive fabric
-velostat
-alligator clips

sourcecode

This slideshow requires JavaScript.

Materials:
scrap materials – spandex
2 (360) LEDs
resistive thread
conductive thread
conductive fabric
regular thread
3V battery