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    Content by Mika Satomi and Hannah Perner-Wilson
    The following institutions have funded our research and supported our work:

    From 2013-2015 Mika is a guest professor at the eLab at Kunsthochschule Berlin-Weissensee

    From July - December 2013 Hannah was a researcher at the UdK's Design Research Lab

    From 2010-2012 Mika was a guest researcher in the Smart Textiles Design Lab at The Swedish School of Textiles

    From 2009 - 2011 Hannah was a graduate student in the MIT Media Lab's High-Low Tech research group led by Leah Buechley


    In 2009 Hannah and Mika were both research fellows at the Distance Lab


    Between 2003 - 2009 Hannah and Mika were both students at Interface Cultures
    We support the Open Source Hardware movement. All our own designs published on this website are released under the Free Cultural Works definition
    Sensors

    Circular Knit Inflation Sensor

    Using the circular knitting machine to knit a circular tube with the Schoeller 50/2 conductive yarn, makes for an excellent stretch sensor that can be used (among other things) to capture the pressure of a balloon inflating and deflating.


    Closeup of knit yarn, where the red yarn is regular yarn and the gray wide center stripe is conductive.

    You can also knit the conductive yarn alongside a regular yarn, this increases resistance. Below are pictures of an example where the thin gray conductive yarn is knit along side regluar white yarn using the circular knitting machine.

    Circular knitting machines are cheap and can be ordered via Amazon online. With them you can knit both tubes and square pieces and knitting larger pieces is a matter of minutes. But you can not gauge that spacing between the needles, so when working with thinner yarns, the knit is very loose. Circular knitting machines come in different sizes with different needle spacing. The left picture bellow is of a Singer circular knitting machine that has 20 needles and about 20cm diameter. The right picture bellow is of a Addi Express Kingsize circular knitting machine that has 46 needles and about 35cm diameter.

    Stretch Sensing Video

    Inflation Sensing Video



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