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29 Dec 2020

Updated: 08 Jan 2021

Views: 279

UPDATED
$50.00

For Sale 10" X 1" Plate glass tools


By: donsurles Location: delaware

For Sale: I have 3ea 10"X1" plate glass tools... price is $50 ea plus actual shipping.... 1) this one has a pitch la...

29 Dec 2020

Views: 338

Sold!
n/a

For Sale 12’ x 16” cardboard tube- FREE


By: Sully606 Location: North Chicago suburbs

This was left over from a non-ATM project. I thought I’d post it here before I get rid of it. It’s free to anyone who...

27 Dec 2020

Views: 297

Sold!
$80.00

For Sale 200mm f/4 primary + 60mm secondary (Orion)


By: Will_S Location: Scotts Valley, CA

These are from an Orion SkyView Deluxe 8 EQ. To be honest, I've generally not been thrilled with the images from it (...

26 Dec 2020

Views: 285


$40.00

For Sale Air Spaced Achromat 92mm Aperture 925mm Focal Length


By: starbird Location: 95409

This is a 92mm aperture airspaced lens with a 925mm focal length or about F10 focal ration. Very nice clean lens need...

26 Dec 2020

Views: 146


$24.00

For Sale 82mm Cemented Achromat 10" Focal Length


By: starbird Location: 95409

This is an 82mm aperture by 10" focal length cemented doublet achromatic lens. Makes a super nice finder scope or...

26 Dec 2020

Views: 418


$25.00

For Sale Deep Throat Micrometer


By: Augustus Location: Connecticut

Good shape, seems homemade. Accurate to 0.001" if I recall correctly. $25 + shipping.

26 Dec 2020

Views: 176

Sold!
$90.00

For Sale 5" Flat, 1" Thick Pyrex


By: Augustus Location: Connecticut

Great shape, very minor scratches to the coating. Beral coated. Military spec. $90 shipped CONUS/AK/HI.

25 Dec 2020

Updated: 30 Dec 2020

Views: 173

Sold!
$10.00

For Sale Secondary heater for Sky-Watcher/Orion 8 inch F4


By: Jerome Ni Location: IL

This is a secondary heater specifically designed for Sky-Watcher/Orion 8" F4. The center hole has an offset for F4. I...

25 Dec 2020

Updated: 05 Jan 2021

Views: 218

UPDATED
$10.00

For Sale 3D printed secondary holder


By: Jerome Ni Location: IL

I have a secondary holder that I no longer need. It is 3D printed with a diameter of 32mm (1.25 inch). It takes M6 bo...

25 Dec 2020

Updated: 26 Dec 2020

Views: 137

Sold!
$40.00

For Sale 70mm secondary mirror


By: Jerome Ni Location: IL

For sale is a 70mm (2.75") secondary mirror from half-baked project I obtained from someone else earlier. I later fou...

24 Dec 2020

Views: 120


$90.00

For Sale HP/Agilent 2 channel Optical Encoders


By: Bartlebee Location: New Mexico

Couple of very nice optical encoders for sale, never used before.Data sheet for the HEDS-5500 encoders : http://pdf.d...

24 Dec 2020

Views: 51


$0.01

Wanted NEEDED: 3.5” to 4” good quality diagonal mirror


By: MDearingJaxFL Location: Jax, FL

I need a good quality 3.5” to 4” quality elliptical secondary mirror; prefer known wavefront and good coatings. Pleas...

23 Dec 2020

Updated: 24 Dec 2020

Views: 257

Sold!
$75.00

For Sale Two commercial optical flats, 1" and 3"


By: Robert Piekiel Location: Marcellus NY 13108

I’m thinning the herd some…Here are four commercially made optical flats: 1) A 1-inch VanKeuren single-sided flat wit...

23 Dec 2020

Views: 301

Sold!
$110.00

For Sale 11" f/7 Primary Mirror


By: Brisby2 Location: Bethlehem, GA

Up for sale is an 11" f/7 Primary Mirror (1.2" Thick plate glass). I was originally planning on using this for a scop...

23 Dec 2020

Views: 215

Sold!
$100.00

For Sale 3 Inch 1/20 wave Zerodur Flat


By: martym Location: Florida

Made for Lawrence Livermore National Laboratory by either Spectra Physics or Zygo used for laser application. Scratch...

23 Dec 2020

Views: 52


n/a

Wanted Wanted 1/8 RPM AC synchronous motor


By: Richard Turner Location: Louisburg NC

Anyone have a 1/8 rpm ac synchronous motor they would like to sell? Thanks, Richard North Carolina

21 Dec 2020

Views: 101


$25.00

Wanted Old 6 inch Pyrex Mirror blank & tool


By: Al Paslow Location: SW PA.

Hi, Looking for a 6 inch Pyrex mirror blank with plate glass tool (if possible). It can be a old abandoned project...

20 Dec 2020

Views: 402

Sold!
$150.00

For Sale 20" Plate Glass Mirror Blank


By: klr Location: OH

Hello, I have a 20" dia x 1" thick plate glass mirror blank. I purchased it about 15 years ago from Dan Cassaro who...

20 Dec 2020

Views: 169

Sold!
$50.00

For Sale 13.5" Destiny 3-Vane Curved Spider w/ 48mm Holder


By: Brisby2 Location: Bethlehem, GA

Up for sale is a 13.5" Destiny 3-vane curved spider, along with a 48mm secondary holder. I was planning on using this...

20 Dec 2020

Views: 330

Sold!
$120.00

For Sale 5" f/8 Achromat in cell


By: martym Location: Florida

From a TMB scope, model 1278, serial 0300088. In a push-pull cell with treaded-on 6.5" long aluminum dew shield. Air...

20 Dec 2020

Views: 444

Sold!
$100.00

For Sale Lightweight 8" f/5 Mirror


By: ccaissie Location: Maine

I had this tested at Stellafane and was told by Dave K. to "Coat it". I doublechecked it on my DPAC setup and agree...

20 Dec 2020

Updated: 20 Dec 2020

Views: 401

Sold!
$750.00

For Sale 13.1" pyrex Coulter mirror - Swayze re-figured


By: TonyStar Location: NY

I am reluctantly selling my beloved 13.1" f/4.5 Coulter pyrex mirror to raise funds towards my next bigger build. Th...

20 Dec 2020

Views: 624

Sold!
$250.00

For Sale JMI NTT 12.5" Telescope Kit


By: scooke Location: Weeki Wachee, FL

This kit will get you started building an all aluminum 12.5" telescope. This was a prototype smaller version of the 3...

19 Dec 2020

Views: 376

Sold!
$300.00

For Sale Meade Starfinder 12.5” f 4.8 primary


By: myronwasiuta Location: Spotsylvania, Virginia

Coatings definitely useable but not perfect- some sleeks on surface and areas where a bright light can be seen thru...

19 Dec 2020

Views: 188

Sold!
$25.00

For Sale 6-inch mirror blank


By: DetroitMatt Location: Southeast Michigan

6-inch dia. Pyrex mirror blank, full 1 inch thickness. This was ground to a 42 inch focal length, wouldn't polish ou...

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


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