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12" Lightbridge collimation bolts?

Started by alanzaza, 02/19/2006 10:35PM
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Posted 02/19/2006 10:35PM Opening Post
Alan Zaza
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Join Date: Feb 2004

Location: Campbell CA, US

Posts: 20

Does anyone know the size, and thread number of the primary cell collimation bolts? I'd like to replace them with knob style bolts. I'm thinking they are metric.
Thanks
Alan
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Posted 02/20/2006 02:39AM | Edited 02/20/2006 02:38PM #1
Judson Mitchell
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Join Date: Jan 2005

Location: Simpsonville SC, US

Posts: 381

Alan, I have been reasonably successful finding bolts, etc, at Ace Hardware, or other locations with extensive assortments of small parts. However, I could not find suitable collimation bolts for my 12" GSO (HOC) dob. As a result I placed knurled knobs on the bolt ends using epoxy. The attachment was reinforced by boring out the back side of the knob, then slotting the knob so that a thin SS strip could be inserted to fit into the bolt screw driver slot. I can send a few more pictures outlining the construction if you are handy enough to make the fix. Hopefully the picture will be attached showing the finished product. Now instead of using a screw driver to adjust my collimation, it can be done with finger adjustments.

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I Yam What I Yam!
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