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24 inch f/4 Ultra Light Dobsonion |
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My un-intended TREND SETTING
signature Telescope |
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First Light
June 15th, 2000, 8:25pm - Sold in March of 2009
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Design Features |
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Large Altitude Bearing |
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Flex Board Azimuth Bearing
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Pyramid Shaped Spider
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Lightweight Open Architecture
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Simple
concept-make a large Aperture Telescope as light and
minimalist as
possible, manageble by one person and able to travel in a small
vehicle with room for camping provisions. The total weight
was 105 pounds, with the heaviest piece 72 pounds, that being the
Cell/Mirror combination. The Pyramid Spider replaced the
Cage structure. Aluminum straps and corner gussits added
regidity. The Cage nests on the "Mirror Box" for travel.
The material was Baltic Birch
with an epoxy coating including the Mirror Cell. Lots of holes
to reduce weight, combined with aluminum gussits and straps to add
rigidity. The trusses are made from
foam filled 3/4 inch Graphite tubing and the Spider is made from
Aluminum and Composite plates.
A Flex Board
Azimuth with Cam Follower Bearings for the large Alt Bearing
sits on a heavy hub-less Ground (Board) Base. The Base is "hub-less" to
permit Mirror clearance as the Telescope rotates to the horizon.
The Azimuth surface needed frequent cleaning to maintain smooth
motion.
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