I was hunting on the web for a CNC coil winding machine to buy and I found this little gem. MIGHT just be of some use to you PI experimenters out there.
I've no idea what will happen if you try this type of coil, but given the properties the inventor reports, it might be something magical!!
http://www.littlemountainsmudge.com/...tinuosknot.htm
I've no idea what will happen if you try this type of coil, but given the properties the inventor reports, it might be something magical!!

http://www.littlemountainsmudge.com/...tinuosknot.htm
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