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Cheap extension for the Vixen Porta mount

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#1 GOLGO13

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Posted 12 October 2019 - 05:57 PM

Before I get into this I want to let you know my Vixen Porta mount is one of the original ones. So I can't guarantee this works for the Porta II, but I would guess probably.

 

So I got a new scope. A 6 inch F4 Newtonian I've using for night vision. While I like the scope, the bottom of the scope was hitting my tripod legs. And right now many great night vision targets are at zenith. 

 

Unfortunately the official vixen extension is $200 and it's hard to say if I could use it as is. So I went to lowes with a mission to find something that would work.

 

Below are some pictures. Basically 3 bolts from their specialty bolts drawers. And a 2 inch PVC pipe. It'd be nice if it didn't have the 3/4 inlet...but it doesn't affect using the scope with it. And not having to make my own 4 inch PVC pipe is good with me. 

 

I'll try it under the stars tonight...but it's very solid and I suspect it will be fine.

 

bolt
PVC porta
porta extended

 


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#2 Migwan

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Posted 12 October 2019 - 06:56 PM

Well done.



#3 GOLGO13

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Posted 12 October 2019 - 10:27 PM

Tried it out tonight and it worked just fine. And no issues at zenith.



#4 jcj380

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Posted 14 October 2019 - 10:54 AM

That inlet can be trimmed off pretty easily with a hacksaw.  My first thought was to use it as some sort of shelf / tray holder, but it looks like that could get in the way of the tube.  Nice to see you saved yourself some bucks.



#5 GOLGO13

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Posted 14 October 2019 - 03:14 PM

Yeah. Still trying to consider a use for the inlet. Really solid setup which makes me happy.


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