Joy Slippers Version 2

Step 4 Finishing slipper

Sewing sole of slipper
Now you will want to layer you pieces as follows so that the conductive traces are facing inwards:
TOP
- Vcc or Inputs
- Ex-static
- Inputs or Vcc
BOTTOM

Hold everything in place and stitch around the edges of the neoprene. Sewing both layers of neoprene together, not including the ex-static in your stitches. Take a good look at the pictures to see how to best to stitch. Do not sew the tongues together (yet), instead stitch back and forth at the foot of the tongue, giving it a bit of a dent and making it easier to bend later on.

Another multimeter test
You can now make another multimeter test to make sure none of your inputs and/or Vcc are touching each other. You should have some resistance between the inputs and the Vcc. And this resistance should become less when you apply pressure to the top of the layers. What you don't want is a permanent connection. Or no connection at all between an input and Vcc. Or any kind of connection between the inputs.

Decide left or right
NOW you really decide if this is going to be the sole of a left or a right slipper.
Take a cutter and cut just a very very small slit into one of the tongues. The tongue you cut the hole in will make it the outside layer of neoprene, the one the touches the ground, not your foot.

Cutting cord
Take the 50ft spiral telephone cord and cut it in half. We will use one half for each slipper. So we only need one at the moment. From the cut end, strip away about 2cm of the thick insulation

Soldering
To bring the conductive thread and wire together we need to solder three of the four wires to a small piece of perfboard. 4x7 holes with 7 strips of conductive copper pattern. I double-spaced the wires to make double sure I don't get any connections between the conductive threads. Please see illustration image for how to solder and sew. Also see the illustration for which three of four wires you should pick to solder.

Sewing up
Now that the conductive threads are connected to the wires of the telephone cord you can stitch around the tongue, enclosing it all between the two layers of neoprene.

Attaching jersey
If you choose to use a sock instead of design your own slipper then now you will be attaching the neoprene sole to your sock. Instead of socks, you can also attach straps of fabric, anything that will hold the sole firmly to the bottom of your feet. If you don't want to sew at all, you can try wearing the soles inside some socks or even shoes!

To follow the pattern shown in the pictures, take the pieces of stretch material and sew them right-sides-together to the edges of the sole (upsidedown). Follow the images to get an idea of how to sew the pattern together. Attach the tongue to the heel so that is sticks up and stays in place.