Millenium Telescope. Initial Meeting.. Format Part 1 - Planning Part 2 - Sample Designs Part 3 -...
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Transcript of Millenium Telescope. Initial Meeting.. Format Part 1 - Planning Part 2 - Sample Designs Part 3 -...
Millenium Telescope.
Initial Meeting.
Format
Part 1 - Planning
Part 2 - Sample Designs
Part 3 - Discussion/what happens next
Objectives
Resolve location and usage issues
Agree design
Present detailed design/cost to Committee
Go/No Go?
Aperture Fever…!
Part 1 - Planning...
Location/usage
Most difficult part!
Dedicated effort
Some options Dome? Balcony? Downstairs? Elsewhere in school grounds
Design Goals
Ease of construction
Ease of assembly/disassembly
Ease of storage and transportation
Ease of collimation (repeatable)
Mirrors
Primary Mirror (Pyrex):– Diameter, 482 mm
– Edge thickness, 38 mm
– Focal length, 2165 mm (F/4.5)
– Calculated weight 15 Kg
Secondary Mirror (elliptical plate glass):– Major axis, 150 mm
– Minor axis, 106 mm
– Thickness, 14.5 mm
Part 2 - Sample Designs
Kriege and BerryObsession 20” F/5
Obsession 20” F/5Completed scope
Obsession 20” F/5 Unpacking truss tubes
Obsession 20” F/5Opening mirror box
Obsession 20” F/5Inserting mirror
Obsession 20” F/5 Setting mirror down
Obsession 20” F/5Install upper tube clamps
Obsession 20” F/5Mirror cell assembly
Obsession 20” F/5Truss tube clamps
Obsession 20” F/5Securing mirror
Dan Gray 16” F/3.75 String Telescope
16” F/3.75 String TelescopeCompleted scope
16” F/3.75 String TelescopeBase
16” F/3.75 String TelescopeClose-up of bearings
16” F/3.75 String TelescopeRocker
16” F/3.75 String TelescopeSquare tube support
16” F/3.75 String TelescopeString length adjustment
16” F/3.75 String TelescopeCollimation adjustment point
16” F/3.75 String TelescopeSecondary cage and spider
16” F/3.75 String TelescopeCollimating
16” F/3.75 String TelescopeDisassembled scope
16” F/3.75 String TelescopeIn car!
Greg Babcock 18” F/4.55
18” F4.55Completed scope
18” F4.55Gallery
Greg Babcock 24” F/4 Ultra-light
24” F/4 Ultra-LightCompleted and disassembled scope
24” F/4 Ultra-LightAltitude bearing and stand
24” F/4 Ultra-Light4” Mirror cell clearance for drive
24” F/4 Ultra-LightTrusses
24” F/4 Ultra-LightCage
24” F/4 Ultra-LightCompleted scope
24” F/4 Ultra-LightCompleted scope
24” F/4 Ultra-LightIn car!
Bruce Sayre 22” F4.05 Design
22” F4.05 DesignCompleted scope
22” F4.05 DesignBase
22” F4.05 DesignCutaway of bottom frame and drives
22” F4.05 DesignClose-up of bottom frame
22” F4.05 DesignBottom portion of telescope
22” F4.05 DesignSide view of rocker
22” F4.05 DesignRocker
22” F4.05 DesignMirror cell multipoint flotation assembly
22” F4.05 DesignMirror cell with flotation assembly underneath
22” F4.05 DesignDrive motor assembly
22” F4.05 DesignStrut attachment
22” F4.05 DesignTruss tube mounting
22” F4.05 DesignView above completed scope
22” F4.05 DesignSecondary cage and spider assembly with baffling
22” F4.05 DesignSecondary cage side view
Digital AstrophotographyC2020z - Planets with 20” Newtonian
Part 3 - Discussion
Team for location/storage Obtain 45 gal drum Consolidate designs/plans
– Contact designers (email)– Monitor bigdob discussion group
Contact FAS/other AS for feedback Possible visit(s) to other AS Agree next meeting