3 replies to this topic

[Tom Cunningham]

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?

[Steve_M_M]

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

[markb]

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.

[Steve_M_M]

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