Design of a an adapter to 90 degree polar telescope

[Astrofriend (Lars)]

I already before used a 3D-printed adapter to attache a 90 degree viewer to a Star Adventurer's polar telescope. A big improvement, but still some need to get it better. This time I design my own adapter with the goal to make it much more stable.

Here is my project page with photos and information:

http://www.astrofriend.eu/3d-printin...r-adapter.html

With the indoor test I have done it looks very promising, much more stable now compared to the older one. If the later outdoor tests goes well I will put up STL files for download for you who find it interesting. It fit SkyWatchers EQ6, HEQ5, Star Adventurer polar scopes, maybe others as well.

Lars

[bojan]

Interesting :-)
Looking forward to final results.

[AstroViking (Steve)]

Definitely interested in this one, Lars. Especially if it will fit the Star Adventurer.

[Astrofriend (Lars)]

It should fit the Star Adventurer, I have sold that mount but can't see there is any difference of the polar scopes on my EQ6 and HEQ5. In the end it attache to the polar scope the diameter is 30 mm.

Still no clear night, it's Sweden !

Lars

[AstroViking (Steve)]

I just checked my SA's polar scope dimensions.

The knurled part at the end, which rotates to adjust focus has a diameter of 30mm.

The smooth, non-moving inner part has a diameter of 28.7mm (call it 29 for easier 3D modelling).

Cheers,
V.

[Astrofriend (Lars)]

Maybe only need a distance ring between. I don't think it's possible to 3D-print that thin device, will only be 0.6 mm thick. Maybe better to use some plastic film instead. Or is it just to tight the clamp harder ?

I have put up the STL file for download if you want to try. I can only test it on EQ6 and HEQ5 mounts and I don't had any clear sky yet.

Here you find the STL file:

http://www.astrofriend.eu/3d-printing/3dprinting.html

Let me know if it's possible to solve for the Star Adventurer mount.

Lars

[AstroViking (Steve)]

Hi Lars,

Or the user can put a layer of tape on the thin/inner part of the SA's polar scope.

I'll ask a friend with a 3D printer if he can make one for me and I'll let you know how it goes - and what needs to be done to make it work with the SA.

Cheers,
V.

[Max Vondel (Peter)]

A great idea. A sensible use of camera right angled view finder. I can never use the polar scopes as they are so uncomfortable and at horrible levels.