Thread: "Excalibur"
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  #31  
Old 24-05-2018, 07:45 PM
Kunama
...

Kunama is offline
 
Join Date: Sep 2012
Posts: 3,588
Managed to sneak out into the shed for a few hours this week:

UTA now complete

Focuser board is 3mm twill weave carbon fibre panel attached to a pair of 12mm aluminium struts that have been lightened by milling out the unseen side..

Baffle is a sheet of blue kevlar/black carbon twill weave sheet 0.5mm thick (or should that be 'thin') with high gloss epoxy on the outside and kevlar fabric on the inside... (this stuff is tough !!!, went through 3 blades just to cut the focuser hole..)

Focuser is the FTF2015BCR with integrated SIPS Paracorr

Spider is the Astrosystems Heavy Duty II with matching secondary holder with Bob's Knobs and Astrosystems 1/12 4.5"

The UTA clamps from Aurora Precision now have ratchet clamp levers replacing the round knobs to make turning them a little easier...
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