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17.5" reincarnation: part 2
Well, the time has come to quit talk'n and start cutt'n to rework my Odyssey II.
After much consultation on the matter of design and material selection, I've finalised the design to a modified 'Albert Highe' tri-pole truss scope.
My change to his original design is the use of a more conventional solid timber mirror box. I'm just not satisfied that the original light-weight mirror box is stiff enough for a 17.5" mirror. It should also see the centre of gravity dropped down much further.
I've got the 50mm drawn aluminium tubes, 15mm hardwood ply, made braces for the spider & have had them powder coated. I've also made a couple of router jigs for the various arcs and circles needed to be cut.
I spent the last couple of hours scribing the various panels onto the plywood. Because of its unique design, my intention to make 750mm diameter bearings may not be feasable. Their ultimate diameter I will need to determine once the OTA has been completed. My intention here is to also make them removeable.
Cutting will finally start tomorrow. It got me all giddie to see the shape of the single sheet secondary cage scribed onto the plywood.
What do you think of renameing the scope 'Odysseus'?
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