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"Bushing" for 2" holes in Nexstar spreader

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#1 dhoover

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Posted 17 June 2019 - 10:44 AM

I'm looking for something that will let me put 1.25" eyepieces in the 2" holes in the Nexstar 6se spreader.  I'm thinking along the lines of caplugs or possibly a plumbing fitting.

Has anyone come up with some idea for a flanged bushing that would drop into the 2" holes?

Thanks,

Dave



#2 Peter B

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Posted 17 June 2019 - 11:17 AM

Do you have any 2" to 1.25" adapters? How about 2" foam pipe insulation?


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#3 skaiser

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Posted 17 June 2019 - 11:38 AM

Thanks for the Great idea Dave. 

Peter has a nice, cheap idea with the pipe insulation.

i am going to design up some adapters, and print them at our local library on their 3D printers.

we are lucky to have a library that has 4 3D printers for public use.

i have lots of custom scope accessory parts thanks to the library.


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#4 Allanbarth1

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Posted 17 June 2019 - 11:44 AM

Do you have any 2" to 1.25" adapters? How about 2" foam pipe insulation?

 

The 2' to 1.25" adaptor is what jumped into my head also. It should be a direct fit. Also will hold the ep securely so you won't have a nagging what if thought in the back of your head all night. It's easy enough to try. May of the adaptors have a flange on them already, so that will keep it from slipping through. 

 

Another plus is that if you ever no longer need to use them, they can easily be sold off. 

 

I see your post about access to a 3D printer at your local library. Why not print out the number of 2" to 1.25" adaptors you need. Make the 1.25" inside diameter just a touch bigger so you can adhere a piece of felt around it so you have no chance of it scratching your ep barrels. 

 

Just another idea to consider. 



#5 spacemunkee

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Posted 17 June 2019 - 11:50 AM

Check out some electric conduit reducers. The 2 inch has an outside diameter of 2 and a flange so it won't drop through. Probably need to have the reduced size around a 1 inch so the opening is around 1 1/4.

Possibly need to stack a couple to get down that far. Can't recall if they make a 2 to 1 inch. 

Attached Thumbnails

  • Screenshot_20190617-124415_Home Depot.jpg


#6 skaiser

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Posted 17 June 2019 - 12:01 PM

I see your post about access to a 3D printer at your local library. Why not print out the number of 2" to 1.25" adaptors you need. Make the 1.25" inside diameter just a touch bigger so you can adhere a piece of felt around it so you have no chance of it scratching your ep barrels. 

 

Just another idea to consider. 

Another good idea! Thanks

I tend to get way too many good ideas for the 3D printer.

But since I did not have to buy it, it's a great resource. Only pay 10cents a gram for parts.

Plus mileage on the car to pick up parts.


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#7 Stefan042

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Posted 17 June 2019 - 02:56 PM

Any chance you have a 3D printer?

 

https://www.thingive...m/thing:3024940



#8 carver2011

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Posted 17 June 2019 - 04:02 PM

Any chance you have a 3D printer?

 

https://www.thingive...m/thing:3024940

If you have a program, many libraries have 3D printers available to the public. There is usually something that can help you use it. The library in my town has one, as does many of the surrounding towns. This reducer would be a great project. 


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#9 Stefan042

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Posted 17 June 2019 - 06:55 PM

If you have a program, many libraries have 3D printers available to the public. There is usually something that can help you use it. The library in my town has one, as does many of the surrounding towns. This reducer would be a great project. 

Printed in about an hour too.
20190617 194922
20190617 200009

 

Added a better photo. I'll mount on my tripod later.


Edited by Stefan042, 17 June 2019 - 07:03 PM.

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