A position sensitive midi drum pad

Step 6 Making and gluing the rubber mounts

Now you can cut the 8 rubber mounts. They can be cut fairly roughly from the sheet to the same diameter as the piezos. These should be glued in the corners of the base board and top frame using contact adhesive, 5mm from the edge. Make a thin film of glue on both surfaces and let it go to touch dry before putting them together.

Then glue the piezos on top of the ones on the base board (again using contact adhesive). Mark the cables so you know which sensor they come from. Top left is 1, top right is 2, bottom left is 3, and bottom right is 4. Tape the cables from the sensors to the base board with gaffer tape, so that they come out on one side.