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8-inch F5 Newtonian Astrograph
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The Tube
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My plans call for a 10"x43" telescope tube. For the time being I have chosen to use aluminum irrigation piping available from a compnay in Nebraska. Hastings Pipe Company has developed a great reputation among the ATM community for the service they are providing to us. This tube was ordered with each end rolled to increase strength. The wall thickness is 0.064". Here it is pictured next to my disassembled Atlas EQ-G for scale.
A long-term goal for this astrograph to have a custom carbon fiber tube. This material provides superior strength and substantail weight savings compared with aluminum. The kicker though is a much lower coefficient of thermal expansion. Focus shift over prolonged imaging sessions is far less of an issue with carbon fiber telescope tubing.
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All projects on Shareaproject.com are user-submitted and should be used for reference information only. The projects are not intended to be complete "How-To" articles. Use the information contained in these projects at your own risk. Projects are not checked for completion, accuracy, or safety and therefore cannot be guaranteed in any way.
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