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Counterweighting secondary mirror
Counterweighting secondary mirror

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tjr650



Registered: June 2009
Location: Gaithersburg, Maryland
Posts: 21
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In an attempt to reduce the flexure between my main scope and the guide scope, I have added a counterweight to the secondary mirror. The secondary mirror for the Meade LXD75 f/4 SN8 is rather large and hangs off the front corrector. I mounted a brass piece to the back of the secondary support and have a threaded shaft coming out of it with some small lead weights on the end. Fearing I might dump the threaded shaft and damage the corrector, I built a dew cap to protect it.
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Location: Meade LXD75 SN8
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Metsavainio

Registered: July 2009
Posts: 255
Mon February 8, 2010 12:50

Very clever!

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