PimpRig.com has posted a user guide on how to add neon wires to a Microsoft Natural Keyboard.

I was able to get the wire to touch within one corner of all the keys on the bottom. I will show you the pics here. Remember nice and flat and route effectively. Go around small obstacles such as plastic etc. I made my wire nice and tight and fully seated. I used the razor to remove small sections and entrance and exit points so they were all flat.

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