The I screw the jig down and repeat step one for the other end.
Get the wires as tight as you can. I lay the wires across a board in order to help tighten up the wires. Then I use a clamp to tighten the wires even more. This is really important, otherwise your finished ribbon cable will not be uniform and it will look crappy.
Next, apply some strong tape on the entire length and width of you cable make sure you use tape that will hold all the wires in place.
Unscrew the jigs and turn the cable over.
Press the clear vinyl strips into the two gaps between the solid color bundle, the purple, grey, white, black bundle, and the striped wire bundle.
Now is the time for the magic sauce. You'll need to get a tube of E6000 Craft adhesive. This is available at craft store (Hobby Lobby, Michael's, etc) It is clear, fliexible and strong.
Slather this stuff evenly on your cables.
Let it set up and dry over night. Pull off the tape and you're done.
Keep in mind as you make your cable that the only area that is really seen is the bottom 3 - 4 inches at most. The rest is twisted up mega -tight.