Pulse Necklace 16Sept2009

Pulse Choker Hack Notes, Sept 16th, 2009

New Stencil

Our new stencil is here! It supports 5 independent control lines, with 7 LEDs total. We are still using the silver conductive paint, and the white mesh fabric (although the new mesh "organdy" is stiffer than the old mesh). We used paper as the backing during the painting step, but this turned out to be a mistake - pealing up the stencil was fine, but when we pealed up the mech fabric from the paper, over half of the paint went with the paper rather than staying with the fabric. This created several visible areas of lack of paint, which the multimeter confirmed as non-conductive spots (and the multimeter also confirmed that the paper has fully conductive traces, what a waste). We had to re-touch the paint job by hand.

On the up side, we had only a little bit of bleed, and once we removed the backing no traces were shorting with each other.

In the future, we should use a non-absorbent backing such as plastic to prevent this problem.

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