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Re: Alluminum Sphere



Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>

At 09:19 AM 3/19/2006, Tesla list wrote:
Original poster: Jared E Dwarshuis <jdwarshui@xxxxxxxxx>

Original poster: "Thomas Coyle" <zxcasd@xxxxxxxxx>

For what it's worth, I paid $14 each for 12-inch-diameter stainless
bowls from Ikea that I plan to weld into a sphere... um, sorry, to be
absolutely accurate, it'd be an oblate sphereoid with 3" diameter
flattened poles, for you mathematical ANALysts... so, about $30 with
tax for a foot-(major)diameter sphere(oid).

Hi Thomas:

They sell garden ornaments called Gazing Balls, they are made of
stainless steel. They have no recognizable seam and a mirror finish.
They are resonably inexpensive,and come in many sizes (save yourself a
lot of work).

And, being SS, they are a bit "challenging" to drill a hole in for mounting. Brazing (or conductive epoxy?) on a bolt might actually be the easier approach.