Nothing in life is free, ya just have work at it ...or just buy the plans on EBAY
fer about $9.95. Oh yea, and know a NASA-type machinist.
Have at it all ya Free-Bees.
http://www.youtube.com/watch?v=PFGiWiXMHn0
They are in production in Europe, but ya can't buy one...ya can only lease it.
Hint: Magnets must be aligned in "attracting poles" at secret sacred geometric angles ( of the GODS ) to work.
Ya gotta have Ump! to generate juice !