Here's the latest in a long line of scopes built by Bruce Grim. I love the way Bruce uses unusual materials to build telescopes. http://users.wirelessbeehive.com/~paw/temp/GARBAGESCOPE.PDF http://users.wirelessbeehive.com/~paw/temp/GARBAGESCOPE.JPG Let's just hope he does not leave it too near the curb on trash collection day... Patrick p.s. No surprise here (especially if you know Bruce) but the cover that goes over the front of the OTA is a garbage can lid.
An idea for Bruce. If he could make one from a toilet, it could be called a Schidt-Cassegrain. On Feb 3, 2007, at 12:06 AM, Patrick Wiggins wrote:
Here's the latest in a long line of scopes built by Bruce Grim.
I love the way Bruce uses unusual materials to build telescopes.
Maybe I just have wine on my mind, but the upper right hand picture, on the right side of the scope, looks like it has a wine bottle affixed to it, complete with cork. Neat pictures, and scope, will Bruce be bringing this to the next meeting? Jo
What is this? I can't figure out what the aparatus is at the "front" end. Some kind of sub-aperture stop? Is this a folded-optical-path instrument? Is the fork from a searchlight assembly? Wrong construction to be an aircraft nose-wheel. Bruce never fails to amaze me with his inventiveness. Jo, I think the "wine bottle" is just the finder with a background neck and cork. --- Patrick Wiggins <paw@wirelessbeehive.com> wrote:
Here's the latest in a long line of scopes built by Bruce Grim.
I love the way Bruce uses unusual materials to build telescopes.
http://users.wirelessbeehive.com/~paw/temp/GARBAGESCOPE.PDF
http://users.wirelessbeehive.com/~paw/temp/GARBAGESCOPE.JPG
Let's just hope he does not leave it too near the curb on trash collection day...
Patrick
p.s. No surprise here (especially if you know Bruce) but the cover that goes over the front of the OTA is a garbage can lid.
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On 03 Feb 2007, at 13:51, Chuck Hards wrote:
What is this? I can't figure out what the aparatus is at the "front" end. Some kind of sub-aperture stop? Yes. I memory serves, the mirror has a turned down edge so he has to stop it down a bit.
Is this a folded-optical-path instrument? Classical Cassegrain. The object in the center of the front of the can (errr, I mean, tube) is the secondary mirror.
Is the fork from a searchlight assembly? Wrong construction to be an aircraft nose-wheel. He's not sure but since he got it as scrap at Hill AFB he thinks it might be part of some landing gear assembly.
pw
The fork looks like part of an old search light... But a pretty one! :D Quoting Patrick Wiggins <paw@wirelessbeehive.com>:
On 03 Feb 2007, at 13:51, Chuck Hards wrote:
What is this? I can't figure out what the aparatus is at the "front" end. Some kind of sub-aperture stop? Yes. I memory serves, the mirror has a turned down edge so he has to stop it down a bit.
Is this a folded-optical-path instrument? Classical Cassegrain. The object in the center of the front of the can (errr, I mean, tube) is the secondary mirror.
Is the fork from a searchlight assembly? Wrong construction to be an aircraft nose-wheel. He's not sure but since he got it as scrap at Hill AFB he thinks it might be part of some landing gear assembly.
pw
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I think Guy is right. Landing-gears are not constructed like that. They are hollow, and most military ones are gas-filled under very high pressure. This is almost assuredly a searchlight yoke. --- diveboss@xmission.com wrote:
The fork looks like part of an old search light... But a pretty one! :D
Quoting Patrick Wiggins <paw@wirelessbeehive.com>:
On 03 Feb 2007, at 13:51, Chuck Hards wrote:
What is this? I can't figure out what the aparatus is at the "front" end. Some kind of sub-aperture stop? Yes. I memory serves, the mirror has a turned down edge so he has to stop it down a bit.
Is this a folded-optical-path instrument? Classical Cassegrain. The object in the center of the front of the can (errr, I mean, tube) is the secondary mirror.
Is the fork from a searchlight assembly? Wrong construction to be an aircraft nose-wheel. He's not sure but since he got it as scrap at Hill AFB he thinks it might be part of some landing gear assembly.
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participants (5)
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bsi＠xmission.com -
Chuck Hards -
diveboss＠xmission.com -
Michael Carnes -
Patrick Wiggins