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3d print Astroscan dew shield?

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#1 Tom Cunningham

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Posted 02 March 2021 - 12:13 PM

I realize there are much cheaper alternatives, but I was wondering what the ballpark would be to 3d print a classic Astroscan dew shield.  I'm guessing there's no existing model for it, so it would involve CAD work.  Maybe a junior college 3d modeling project?



#2 Steve_M_M

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Posted 02 March 2021 - 12:21 PM

Interesting thought.  Once designed, it would be an easy print to do with no supports or anything special. 



#3 markb

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Posted 02 March 2021 - 12:22 PM

Edmund was still selling dew shields a few years ago.

 

They must have been old stock, because I bought one, and the first time I installed it it cracked immediately. I eventually rebonded it but I'm now more careful if I consider putting it on.

 

I would assume you should be able to either buy one or locate photographs of them. There is a cutout, as I recall it, for the focuser.

 

I haven't started my 3D printing entry yet, but I would imagine it is not a difficult piece to make or lay out in CAD.

 

Edit: I located great photos of the dew shield in this thread

https://www.cloudyni...cope-went-here/

 

Edit2: that thread talked about finders, and I have one of the original sheet metal ones but always wanted to attach a prism, cheap diagonal body, or small RA mirror to it to avoid the bending over nonsense.


Edited by markb, 02 March 2021 - 12:24 PM.


#4 Steve_M_M

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Posted 02 March 2021 - 12:22 PM

There sure are a lot of 3D printed dew shields available  :)  https://www.yeggi.com/q/dew+shield/




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