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What did you do to your Scope/Mount Today?

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#4426 CHASLX200

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Posted 21 April 2019 - 05:59 PM

Stripping the paint from the AP800 pier base.

34fehpi.jpg


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#4427 Bomber Bob

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Posted 22 April 2019 - 09:16 AM

BIF:  For the first time that I can recall, I had to remove mold from a mirror.  Black mold, and on both of my 6" Newts -- RV-6 F8 & Edmund F4, and in the same place.  The "body" / patch of sticky powder was about dime-sized, and on the edges, with "tentacles" / tendrils that came over & onto the aluminized surfaces -- yuck!  I sprayed the mirrors with hydrogen peroxide, let them set for about 10 mins, then put each into a small separate tub of warm soapy water.  Most of it came off in the rinse.  I used some Nikon pre-moistened lens pads to remove the rest.  I patted the edges & backs dry, then rubbed in peroxide with an old rag, and let that air dry.

 

I guess I left the Newts out in the shed too long -- trying to have them ready for cloud gaps in our 3rd miserable Winter.  Both were standing mirror-end down on a rubber pad that must have been contaminated.   The mold looked like the stuff that afflicts Bermuda grass when it gets too high, and the blades stay damp too long.  Thing is, the shed gets dusty, but it's bone-dry most of the time.  My C90 & RFT 80 stay in the shed year-round; but, they're in air-tight cases with silica gel packs -- same as my accessory cases.

 

Anywho, thought I'd pass that along for other swamp-dwellers.  Both scopes are back in the Man Cave, and lying on their sides so air can circulate through them.


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#4428 terraclarke

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Posted 22 April 2019 - 11:36 AM

I guess they don’t call it the Swamp for nothin’!

 

https://youtu.be/V8TKZu5PbdA

 

:lol:


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#4429 Bomber Bob

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Posted 22 April 2019 - 02:15 PM

Yeah, if you stand in one place too long, you'll get covered, too!


Edited by Bomber Bob, 22 April 2019 - 02:15 PM.

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#4430 CHASLX200

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Posted 22 April 2019 - 06:54 PM

Got the short pier up and running and a new life for the 826 on a real mount.

nl65c1.jpg


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#4431 Bomber Bob

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Posted 23 April 2019 - 09:08 PM

Trip55 (aka The Thing)

 

Somehow the scope's previous owner broke the gear off the pinion.  His solution:  Slide the lens cell 40mm inwards, lube the brass drawtube & use its lock knob for coarse focus, and modify a Meade 2" SCT mirror diagonal for fine focus...

 

ATM 5 RFT AS02.jpg

 

My solution:  Find a replacement pinion that meshes with the helical-cut rack, and a pinion cover with tension screws; then, move the lens cell forward 40mm to the original holes.  He used odd-sized (Japan standard?) screws to hold the cell and the focuser base plate on.  I bored-out the holes, and tapped the cell for three #10 & the base plate for six #8.  

 

I got a cloud gap tonight, and tested my 2" & 1.25" accessories.  They work great, and I no longer need extension tube(s).

 

All that's left is the conical baffle.  Couldn't find a cardboard cone at our local craft store, so I'll check online.  After my paternal grandparents sold their farm & moved to town, my Granny worked part-time at a yarn plant, and she brought home cones of all sizes.  That's what I have in mind.  I flocked the interior a while back, and that controls glare, but I got a big boost in performance when I put a conical baffle in my Tasco 999VR -- made that Tanzutsu a Super RFT.

 

(What do y'all think of Trip55 as a nickname for this vintage 5" F5 triplet?)


Edited by Bomber Bob, 23 April 2019 - 09:35 PM.

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#4432 telesonic

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Posted 23 April 2019 - 11:06 PM

I spent the evening tinkering on a recently purchased classic mount, the good 'ole Vixen Polaris. Ohh yeah! This one came as a package deal with an 80mm F/11 Celestron refractor that was on the classifieds here a little bit ago, yep... but some of you may look at my signature, wonder.... and shake your head.

"What is he thinking. Another mount / scope.... 'eh. He already has blablitty blah..."

 

Yep. They'd be right.

 

Not to spoil the fun, but this is going to be passed along gratis to someone that has shown interest in this hobby.

 

 

T


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#4433 TSSClay

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Posted 24 April 2019 - 09:27 AM

BB - How about "Triple Nickle"

 

Clay


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#4434 Bomber Bob

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Posted 24 April 2019 - 09:41 AM

BB - How about "Triple Nickle"

 

Clay

Yes!  That's perfect!  The lens diameter is 140mm -- 5.5" -- so, 5.5 F5 = 3 x 5's and it's a Triplet.

 

I'm done with all the hardware changes / improvements, so it's ready for cosmetics.  I thought about Meade Blue for the tube, but I think high-gloss black powder coat by JD will look better -- and make that polished aluminum end ring stand out.  Maybe go with crinkle / textured satin black on the focuser -- make its yellow brass draw-tube stand out.

 

Anywho, this is one BB Oddball scope that turned out to be worth much more to me than I paid for it.  Generally, the refractor oddballs have been the best of the oddballs -- like the pair of 80mm F5 WWII-era binocular objectives, with their HEAVY water-proof cells within cells.  I managed to keep those cells by using a China-made Celestron 90mm OTA for my RFT 80.  (No telling how much Uncle Sam paid for those lenses in today's $$$.)


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#4435 Bomber Bob

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Posted 24 April 2019 - 02:43 PM

Finally!  The Baby Blue pedestal is gone.  In its place is a hammered bronze semi-gloss.  Rustoleum has a long shelf life -- I bought this stuff back in OCT 2018.  The feet will be satin black, like my RV-6:

 

RV6 Rebuild S42 - COMPLETE.jpg


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#4436 CHASLX200

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Posted 24 April 2019 - 06:47 PM

Painted the tall AP pier.


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#4437 Esso2112

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Posted 24 April 2019 - 09:32 PM

Tonight I finished up collimating the TMB 175. Minor tweaks and then did some slight adjustments to the added on 2” feathertouch.  Made minor tweaks to the three set screws the hold it on and then rechecked collimation until I had it matched to what it looked liked without the feathertouch. Loving the Takahashi collimation scope. So much better than a Cheshire eyepiece. 

 

Eveything is tweaked, clean and ready to be loaded into the wife’s truck for a week of cloud, I mean star, gazing at the Texas Star Party. Weather isn’t looking too great, but a week away from the office is always a good thing. Friday night I’ll load everything up and head to the desert on Saturday. This is my 18th year going. 


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#4438 rolo

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Posted 27 April 2019 - 06:49 PM

Recently got this 2045 in need of some TLC. Drive motor was stuck with rust but a good cleaning got it working again. Also, drilled and tapped a 1/4-20 hole on the base to be able to mount it on the Meade 883 tripod. A slight offset was need for the AC cord to fit. Pretty solid and easy to carry. Jupiter looked  nice and sharp with good band detail,star test is very good.

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#4439 CHASLX200

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Posted 27 April 2019 - 07:00 PM

Recently got this 2045 in need of some TLC. Drive motor was stuck with rust but a good cleaning got it working again. Also, drilled and tapped a 1/4-20 hole on the base to be able to mount it on the Meade 883 tripod. A slight offset was need for the AC cord to fit. Pretty solid and easy to carry. Jupiter looked  nice and sharp with good band detail,star test is very good.

Is it razor sharp like the spotter version yo got?



#4440 rolo

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Posted 27 April 2019 - 07:04 PM

Is it razor sharp like the spotter version yo got?

Looks like it to me. I can't really see Jupiter off my deck until its in the western skies but  it was very sharp with good band detail in a 7mm Nagler. I may do more testing tonight if I'm able to get out.


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#4441 CHASLX200

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Posted 27 April 2019 - 07:12 PM

Looks like it to me. I can't really see Jupiter off my deck until its in the western skies but  it was very sharp with good band detail in a 7mm Nagler. I may do more testing tonight if I'm able to get out.

Odd how these 2450's were all over the board from duds to razor sharp.


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#4442 rolo

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Posted 28 April 2019 - 07:08 AM

Odd how these 2450's were all over the board from duds to razor sharp.

The few I've had have all been good. They may be consistently bettter than the larger models.



#4443 CHASLX200

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Posted 28 April 2019 - 08:36 AM

Odd i had 4 that were duds , one was good and one spotter was insane good. Got the pier painted and base and slapped together.  I can lift the whole mount head onto the pier minus the counter weights.  A taller pier and i would have trouble.  This is a 39" pier, the pipe by itself.  

20u74mq.jpg


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#4444 Bomber Bob

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Posted 28 April 2019 - 11:08 AM

I painted the Meade StarFinder's 3 pedestal feet this morning.  Coulda swore I had a can of satin black...  The only can of black I had in the shed was Rustoleum Textured Black...  Did I run straight to Lowe's?  Heck, no!   Like any true redneck, I went with what I got.  They're drying outside now.  Our second relatively dry weekend in a row.  I don't know what to do with myself.

 

I also gave my circa 1956 Hy-Score Model 457 its first cleaning & glamor shots.

 

It's back in my Man Cave, sitting under my Goto Hy-Score 452, and just too darn cute!

 

[Of course, with the pedestal & feet all painted & purdee, now the mount looks drab.]


Edited by Bomber Bob, 28 April 2019 - 11:11 AM.

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#4445 KentTolley

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Posted 29 April 2019 - 04:34 PM

For the classic big Newtonian admirers, I got this in the mail today.

 

With gratitude and many thanks to photoracer18.

I used to have and loved the feel and look of the little Sky Micro focuser.

It was another great offering from Telescopics in the old film studio neighborhood of Hollywood. Back in the day it was the focuser to have.  Here is its big brother.

 

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Edited by KentTolley, 30 April 2019 - 06:56 AM.

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#4446 KentTolley

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Posted 29 April 2019 - 04:35 PM

Sky Micro Giant 2" focuser

 

is close enough to be period-correct for my 1965 10" scope AND give me a 2" focuser.c

 

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Edited by KentTolley, 30 April 2019 - 06:56 AM.

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#4447 bridgman

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Posted 30 April 2019 - 01:08 AM

Dug the C8 out of the basement and mounted it on the AZ-8... discovered it did not have collimating thumbscrews (aka Bob's Knobs) like I thought it did. Ordered said knobs.

 

Took the polar scope out of the G11 in case it was limiting my ability to crank the RA clutch down and confirmed it was actually happening. Took the lightly oxidized DEC clutch knob off the G11, cleaned & lubed the spring washer, spacer and clutch knob threads. Spent a few minutes enjoying the much improved RA and DEC clutch action.


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#4448 roscoe

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Posted 30 April 2019 - 07:57 AM

For the classic big Newtonian admirers, I got this in the mail today.

 

With gratitude and many thanks to photoracer18.

I used to have and loved the feel and look of the little Sky Micro focuser.

It was another great offering from Telescopics in the old film studio neighborhood of Hollywood. Back in the day it was the focuser to have.  Here is its big brother.

I've always liked those helical/rack and pinion focusers, the close threads give them a nice fine-focus ability. It's a nice retro-upgrade for a vintage reflector!


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#4449 KentTolley

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Posted 30 April 2019 - 09:08 AM

This Sky-Micro Giant is different than the standard version which is taller.  I don't know if it's a prototype or meant to be low profile.  But the inner tube slides down into the light path at its lowest position so I don't think it could be used that way. I have not seen another of these 2" focusers that is so short.

 

It came with a skirt radiused for a larger tube.  I have to figure howto shape it for my 12" tube or cut a new one out of brass.  I don't know how to cut a curve on a flat surface that will fit a tube when you mate the two ends together. 

 

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Edited by KentTolley, 30 April 2019 - 09:16 AM.

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#4450 KentTolley

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Posted 30 April 2019 - 09:23 AM

Anyone know a good way to cut this in sheet metal or brass?

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Edited by KentTolley, 30 April 2019 - 09:30 AM.



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