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Equipment Discussions >> Refractors

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chemist
super member


Reged: 10/09/10

Loc: Central Texas
Re: Pimping your 102mm gt OTA.. Like what? new [Re: labmand]
      #6069855 - 09/08/13 04:24 PM

Hi Dave:

Stability is pretty good using anti-vibration pads under the tripod legs. Last night I was splitting close doubles at 166x when the wind wasn't blowing. Vibration is about the same as a 6" or 8" SCT with long dew shield. The weak link is probably the standard tripod itself - need a HD with 2" legs!

Chemist


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labmand
sage
*****

Reged: 02/08/11

Loc: Michigan USA
Re: Pimping your 102mm gt OTA.. Like what? new [Re: chemist]
      #6069872 - 09/08/13 04:35 PM

Quote:

Hi Dave:

Stability is pretty good using anti-vibration pads under the tripod legs. Last night I was splitting close doubles at 166x when the wind wasn't blowing. Vibration is about the same as a 6" or 8" SCT with long dew shield. The weak link is probably the standard tripod itself - need a HD with 2" legs!

Chemist



Well... I like the tripod for it's lightweight, so will
give it a pass but always open to diy improvements. When
I can pick up the entire setup get out the door without
a struggle it makes for an enjoyable night, If I really want
to get serious I can load and lock the big stuff, but most
of my double star gazing don't require it.


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desertlens
professor emeritus
*****

Reged: 12/06/10

Loc: 36N 105W
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6069878 - 09/08/13 04:37 PM

Quote:






I dub thee Sir Pimpsalot.


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buddyjesus
Carpal Tunnel
*****

Reged: 07/07/10

Loc: Davison, Michigan
Re: Pimping your 102mm gt OTA.. Like what? new [Re: chemist]
      #6069993 - 09/08/13 05:47 PM

Quote:

For those who already have a Celestron 6SE or 8SE, here's a mount mod that will extend the OTA so that it clears the base when vertical. The spacer is 1/2" thick aluminum bar stock (very rigid). It adds about 2 lbs to the total payload weight. Slewing and tracking remain the same and stability on the tripod is acceptable (better with anti-vibration pads).

Chemist




really cool. the problem with clearance with the mount when being pointed vertically was my main problem with this mount.


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spongebob@55
scholastic sledgehammer
*****

Reged: 12/26/11

Loc: Bergen Co. New Jersey
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6070068 - 09/08/13 06:42 PM

Quote:

Received an email update from Hands On Optics that the shipment of black Stellarvue finders won't arrive until Monday or Tuesday. Since it could be a week until I get the replacement, I decided to go ahead and post a pic of the current state of my pimped C102GT:



All I have left is to replace the white Stellarvue finder with the black model and modify the orange stripe on the dew shield. I am thinking about making it silver...

This is one awesome grab and go setup!




Silver/grey to match the scope graphics or bright silver to match the knobs/mount? Either way, post a picture please when you get it done.
S.Bob


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Ain Soph Aur
professor emeritus
*****

Reged: 08/11/11

Loc: West Tennessee
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6070129 - 09/08/13 07:37 PM

Quote:

Quote:

Quote:

I ordered some of the 1/8" plastic hole plugs as recommened by another poster to hide the stock dovetail bolt holes. They are very low profile and don't cause any issue at all with the ring felt, perfect!




You can move the rings back and forth over the plugs with no problem? I might try them, then.




Yep, the felt slides right over them (ES Rings). Recommended! Your mileage may vary with felt on other rings...




I need to walk this back. I've been experimenting with back focus with various eyepieces and diagonals this afternoon and found that plugs did get caught by the felt about half the time as I was rebalancing, depending on how much I loosened the rings.

I believe I am going to take the dremel to them and see what I can do.


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REC
Post Laureate
*****

Reged: 10/20/10

Loc: NC
Re: Pimping your 102mm gt OTA.. Like what? new [Re: *skyguy*]
      #6070819 - 09/09/13 08:15 AM

Jim, the finder bracket is one I took off another scope I had laying around. The 8x25 is off of one of my ETX scopes that came with one.

I might just switch it to a 6x30 straight view instead...depends on what I'm going to view.

Bob


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Sarkikos
Postmaster
*****

Reged: 12/18/07

Loc: Suburban Maryland, USA
Re: Pimping your 102mm gt OTA.. Like what? new [Re: spongebob@55]
      #6070821 - 09/09/13 08:17 AM

Quote:

1. Remove with Synta Grease and replace with Pete's Red grease. I used Naptha. Is there anything better?




How about Goop Gone or equivalent? Or is that Naptha? I wouldn't know where to get Naptha.

Mike


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buddyjesus
Carpal Tunnel
*****

Reged: 07/07/10

Loc: Davison, Michigan
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Sarkikos]
      #6070882 - 09/09/13 09:12 AM

naptha fine as a solvent. Should be available in a paint store or even walmart as camping fuel. Just restrict its use to unpainted metal and you should be fine.

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PeterR280
Pooh-Bah
*****

Reged: 05/27/13

Re: Pimping your 102mm gt OTA.. Like what? new [Re: buddyjesus]
      #6070902 - 09/09/13 09:37 AM

I use Break Free CLP to get the goop off.

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Sarkikos
Postmaster
*****

Reged: 12/18/07

Loc: Suburban Maryland, USA
Re: Pimping your 102mm gt OTA.. Like what? new [Re: PeterR280]
      #6070977 - 09/09/13 10:25 AM

Goop Gone or equivalent should work fine, with no danger to paint. I use it all the time to remove sticky adhesive left on OTA's from double-sided tape for Telrads and such. Also, after I cut Velcro, Goop Gone does a good job cleaning the scissors.

Mike


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jag767
professor emeritus
*****

Reged: 06/20/13

Loc: Massapequa, NY
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Sarkikos]
      #6070987 - 09/09/13 10:34 AM

Hey has anyone done anything with the reflectivity inside what passes as a dew shield? I had some flocking laying around so I threw it inside the shield and plastic around the lens cell. Since its been established the effective aperture of the scope is 100.55 and the flocking is about .5mm thick it shouldnt have any negative effects, and the plastic is insane reflective. I'm really not sure if theres any difference, but I'd be curious to hear someone elses thoughts

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jag767
professor emeritus
*****

Reged: 06/20/13

Loc: Massapequa, NY
Re: Pimping your 102mm gt OTA.. Like what? new [Re: jag767]
      #6070993 - 09/09/13 10:39 AM Attachment (26 downloads)

I didnt take a before so if someone wants to put one up to compare, here is the after:

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Ain Soph Aur
professor emeritus
*****

Reged: 08/11/11

Loc: West Tennessee
Re: Pimping your 102mm gt OTA.. Like what? new [Re: jag767]
      #6071023 - 09/09/13 10:55 AM

Great idea. I have been planning on buying some protostar flocking for another project...

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jag767
professor emeritus
*****

Reged: 06/20/13

Loc: Massapequa, NY
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6071044 - 09/09/13 11:08 AM

Quote:

Great idea. I have been planning on buying some protostar flocking for another project...




Nice! Well if you decide to give it a go cutting it to 1.5 inches for the dew shield and 7/8ths for the cell is about right. I was going for ~95% so that worked for me.


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Sarkikos
Postmaster
*****

Reged: 12/18/07

Loc: Suburban Maryland, USA
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6071164 - 09/09/13 11:59 AM

Quote:

Great idea. I have been planning on buying some protostar flocking for another project...




+1. It is a great idea to save some ProtoStar for these little flocking jobs. I always flock inside the dew shields.

I still need to flock the C102's dew shield, as well as construct a longer dew shield out of black foam sheeting to go over it.

Mike


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Happy Birthday audioaficionado
professor emeritus


Reged: 05/24/12

Loc: Medford, Orygun, USA
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ain Soph Aur]
      #6071264 - 09/09/13 12:48 PM

Quote:

I need to walk this back. I've been experimenting with back focus with various eyepieces and diagonals this afternoon and found that plugs did get caught by the felt about half the time as I was rebalancing, depending on how much I loosened the rings.

I believe I am going to take the dremel to them and see what I can do.



Good to know. Looks like I'm just going to use tape to cover those holes.


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Ed Holland
Pooh-Bah


Reged: 06/16/10

Loc: San Jose, CA and Oxford, UK
Re: Pimping your 102mm gt OTA.. Like what? new [Re: audioaficionado]
      #6072771 - 09/10/13 08:35 AM

I recently experimented with home made "flocking". 100 grit sandpaper, sprayed with a light coat of matt black paint.

worked very well on the baffle tube of my Mak.

Just a thought for those wanting to maintain the budget theme

Ed


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t.r.
Post Laureate
*****

Reged: 02/14/08

Loc: Upstate NY
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ed Holland]
      #6072775 - 09/10/13 08:39 AM

Why shouldn't it work...Televue has been using Emery Cloth in its tubes for years.

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spongebob@55
scholastic sledgehammer
*****

Reged: 12/26/11

Loc: Bergen Co. New Jersey
Re: Pimping your 102mm gt OTA.. Like what? new [Re: Ed Holland]
      #6072859 - 09/10/13 09:51 AM

Quote:

I recently experimented with home made "flocking". 100 grit sandpaper, sprayed with a light coat of matt black paint.

worked very well on the baffle tube of my Mak.

Just a thought for those wanting to maintain the budget theme

Ed




Great idea Ed. Does the paint insure that the granules of grit don't release from the backing?

Love these ideas....
sBob


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