Monday, February 24, 2014

Squeezing things

I made a resistive yarn ball that gives more resistance when you squeeze it from the "How to Get What You Want" guide (sounds suspiciously like a self-help book) found at It is a very approachable guide on how to make variable resistors and switches with textiles. Tomorrow I'm going to attempt to wrap another conductive ball with an accelerometer inside as control for an experimental instrument I am attempting to make musical, the interface being based around squeezing and turning this conductive ball.

 In addition, I finally looked into the outcomes of the Guthman competition and there is a video of a very similar interface for an instrument called "


(homage to the Sonic Banana?)
of which some entertaining video documentation can be found here

I once found this postcard from Poland with a really strange looking hotdog on it

More on this later,

Sunday, February 23, 2014

Better contact mics

As you may already know, my metal plate project will be utilizing a couple of contact mics for amplification and controlled feedback.
One of the downsides to the cheap piezo transducers is that, for electrical and mechanical reasons that I don't totally understand, a DIY contact mic without a preamp has a resonant peak in the response and can't reproduce low end well.
To that end, I am going into the workbench this afternoon to make a couple of preamps using this design:

Wednesday, February 19, 2014

Guitar Wing

Even though we're intentionally avoiding augmented instruments with our first project, I wanted to share these videos I found of the Guitar Wing since augmented electric guitar and the use of electric guitar in new music is something that interests me a great deal.

That being said, the results in these videos are pretty cheesy, and I would say that they don't so much extend the abilities of the guitar as they simply put buttons and sliders in easy ergonomic reach for the guitarist.

Still, I think it's a step in the right direction, or at least a good sideways step.

I expect people that use the Guitar Wing will end up playing finger style (forgo a pick) a lot more than they used to.

The Robocaster was actually an early prototype made (I think) by Moldover that inspired the Guitar Wing:

This is Moldover using the finished production model- the most important point to note is that it can be added to an existing guitar without modification:

Monday, February 17, 2014

Digital Panel Joinery

For those laser cutting cases and boxes, check out this post on digital panel joinery. Lots of design ideas.

Sunday, February 16, 2014

Just came across this, dont know how many have seen it. Think it might be of interest to some... [=

Future Self by rAndom International

Sunday, February 9, 2014

Guthman Musical Instrument Competition

Every year, Georgia Tech. School of Music holds a competition on new musical instrument. Here's the list of semifanlists this year.

Hope we can see some projects from this class next year.

See hear for more details :

Daniel Novy
Chester Udell
nu desine
Yuto Hasebe
Teenage Engineering
Tolgahan Cogulu
Francesca Fini
Stegano Fasciani
Berendan McCloskey
Margariet van Eekelen
Edward Ptokar
John Driscoll
Uday Shankar
Amit Shoham
Yoshihito Nakanishi
Ian Hattwick
Mailis Rodriques
Michael Shonle
Feng Gao

Tuesday, February 4, 2014

1DOF Haptic Devices

Those interested in haptics may want to check out, which has a section devoted to 1 degree-of-freedom "Haptic Paddles:"

Furthermore, check out the "Hapkit:"


Came across this while researching "amplified ceramic".

Not necessarily 100% relevant, but I thought it was lovely and worth sharing!
I guess technically it could be interactive if the spectators were willing to get wet.