Woodrow F Caul
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Thank You! Its My Labor of Love. I'm going to try something new and I haven't said it because I don't know if I can do it , or not. But I'm going to TRY TO incorporate 2 linear bearing races in circumference of the actual carbon fiber tube. So then all it takes is a fairly thin cast aluminum outer bearing race (with rod braces to the other rotating rings) so basically it's a low profile rotating ring system where the bittom race is built into the tube and it's going to be either aluminum u channel or possibly stainless steel, molded directly into the carbon fiber Tube. And then, it goes on a eq8.. if I can keep the weight down.. I ordered 4 boxes of the Double wide, plastic caged linear needle bearings FF3555ZW So , long story short- "TOO LATE!!" not a Dob, going to try to make low profile rotating rings and put it on a German equatorial.
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I KNOW, RIGHT!?? LOL There's a Nice roll around Ladder , AND it has rotating Rings, so the tube rotates putting the eyepiece at the best Angle for viewing, relative to what you're looking at in the sky , on the big German equatorial Mount .
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I ordered Seamless Carbon Fiber tube material 5.8oz/yard to make it 1 layer thick, Very Strong and it's optimal size is 21" Diameter at 45° fiber angle. This Braided Sock has a +/- 20% diameter size depending on the braided strands intersect angle. By my Calculations this 6.8 ft X 22 in Diameter O.D. tube will weigh around 5lbs. Next step is to build a Rotating Mandrel to put the Carbon Fiber Sock on to infuse the Epoxy resin into it. Gonna be FUN !
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So, I buy Astro stuff at the Amazon freight Auction in Wilmington Ohio. I saw this 18" Skywatcher Stargate mirror at the Auction.. I actually was prepared to go as high as 1400, but I was fortunate enough to get it just $330 usd
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#3 in 88 I built this 12.5 " F/11 Planetary Newtonian for the Miami Valley Astronomical Society's John Bryan State Park Observatory. Using the mirror & Secondary that they owned. It features 2.25 Stainless Steel axels in Pillow Block Bearings & Rotating Rings. Best view of Mars's Polar Ice Cap I've ever had... Was in this! Colors were left to my discretion so it's Scarlet and Grey ! O-H
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2nd: This is a 20" Classical Cassegrain at The Boonshoft Museum of Discovery in Dayton, Ohio. Originally installed in 1969, it was unusable in 1993 when I spent 8 months Restoring it.
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And so it Begin's.. Before I start, my Telescope making background on the 3 largest scopes I've done. This white 20" Cassegrain, I didn't build, but I dismantled at University of Colorado Boulder and moved it (with the help of Riggers) to a bed and breakfast Observatory called the Star Hill Inn, and Reassembled + aligned, and tuned the Worm gear drives. Anybody recognize Gene Shoemaker?
