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Alan,
Although cast tubes are possible, I believe the less expensive method
is to take a flat panel, heat it to forming temp, roll it around a
template of the proper diameter and then bond the edges.
Jon
On 7/10/2010 9:19 PM, Alan James wrote:
I'm intrigued by your acrylic
conning tower. Is it a slice from a pre-formed acrylic tube?
I've seen acrylic tube of that
diameter for sale. Was it expensive compared with a dome?