OctaPad to DodecaPad

I used what I refer to as Beatnik Boxes to add four more triggers
to my OctaPad. Beatnik calls them Mini-Triggers.
Beatnik's Project Page
This is a great resource for eDrum projects.

The first two used 3 inch boxes. And I used masking tape to hold down
the rubber while drying, thus leaving the ugly tape marks.
I discovered that SOME radio shacks have 4 inch project boxes. The last
two were done that way and they worked much better. I eventually
replaced the first two with 4 inch boxes.
I used a rubber mouse pad for the tops and Radio Shack Silicone Rubber
Sealer to attach the piezos and rubber tops.
The tops of the project boxes have little bumps. I used an exacto knife
to trim those off and the result is a much more responsive pad. The 3
inch triggers still have the bumps and will only trigger well in the
middle. The four inch babies trigger well all over.

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