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Celestron C4.5/ Vixen Polaris Mount

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29 replies to this topic

#26 CHASLX200

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Posted 01 March 2024 - 07:17 AM

The two that I had, had no dents what so ever. This one (my favorite)has different (non crushing) rings.

No dents in mine as well gents.



#27 deSitter

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Posted 01 March 2024 - 07:32 AM

The two that I had, had no dents what so ever. This one (my favorite)has different (non crushing) rings.

What are "tube crushing" rings?

 

-drl



#28 reverse_syzygy

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Posted 01 March 2024 - 08:13 AM

What are "tube crushing" rings?

 

-drl

oooh, one I can answer!

HERE'S WHAT

 

that's my (uncrushed) 8V in original mode.  The tube sits on the saddle, and the rings are secured by that knob that attaches to saddle-tabs and rings.

 

Problem is that the tabs aren't at the same height as rest of saddle - note the gap between rings and tube - so if you over tighten that knob, the saddle acts as a fulcrum and .... *crush*


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#29 *skyguy*

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Posted 01 March 2024 - 08:18 AM

Did you have to modify the diode on the clock drive like Terra did?

No, the Tasco 1606 drive was advertised by Telescope Warehouse for use with the Vixen Polaris mount.



#30 deSitter

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Posted 01 March 2024 - 08:48 AM

oooh, one I can answer!

HERE'S WHAT

 

that's my (uncrushed) 8V in original mode.  The tube sits on the saddle, and the rings are secured by that knob that attaches to saddle-tabs and rings.

 

Problem is that the tabs aren't at the same height as rest of saddle - note the gap between rings and tube - so if you over tighten that knob, the saddle acts as a fulcrum and .... *crush*

Thanks! Another (rare) example of a Japanese mount design decision that was not well-founded. Where did this first appear?

 

-drl


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