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Oops! Tripod leg spreader broke.

Celestron DIY mount tripod
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#1 audioaficionado

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Posted 29 August 2014 - 10:58 PM

I've got the older C channel aluminum tripod legs (1999) that came with the Celestron CG4 setups back then. They are essentially aluminized jello lol. The hinged plastic leg spreader was snapped in half. Gluing isn't an option.

 

I'd like to replace those jello legs with the wood ones at Hands On Optics, but they don't come with a spreader. That and the head are supposed to come from your tripod.

 

I need to buy or build another leg spreader to use with the wood legs I'm going to get. I need one that doesn't have to be unbolted to fold the legs together. The broken spreader was hinged at the leg attachments and in the middle.

 

Any help would be greatly appreciated.

 

Interesting DIY hinged spreader.


Edited by audioaficionado, 29 August 2014 - 11:13 PM.


#2 Startraffic

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Posted 30 August 2014 - 05:01 AM

audioaficionado,

Looks like a great idea I think I'm going to copy it. 

FYI I've used onlinemetals.com for my materials. Competitive pricing, fast delivery, good quality.

 

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#3 Gastrol

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Posted 30 August 2014 - 10:54 AM

That's a neat DIY idea.  

I've used chain spreaders on home made wooden legs before.  They're the easiest to put together.  Quite effective too.   I made the wooden legs to replace the stock aluminum CG5 legs.



#4 audioaficionado

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Posted 30 August 2014 - 01:09 PM

If all three chains are the same length and mounted between legs rather than into a center ring, the 120° leg spacing should be assured.



#5 roscoe

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Posted 31 August 2014 - 07:56 PM

Here are a couple of photos of a folding spreader I built for a tripod I also built, an idea somewhat similar to the one linked above.

 

For extendable metal legs, I have used t-shaped hinges, with the t-part fastened to the two fixed legs, and the long part fastened to the folding brace pieces. 

 

DSCN0188.JPG

 

DSCN0189.JPG



#6 roscoe

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Posted 31 August 2014 - 08:00 PM

The three short dowels you see sticking up from the brace pieces are to locate a triangular piece of 1/4" birch plywood, which both locks the legs at 120 degrees, and provides an eyepiece-case tray.

 

All my non-vintage tripods have variations of this folding brace design on them.....



#7 ed_turco

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Posted 01 September 2014 - 10:59 AM

Why not used hardware store chain and some eyebolts?  My exanple cost me $6; not a bad deal.

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  • crutch_tripod.JPG


#8 evan9162

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Posted 01 September 2014 - 04:26 PM

The hinge spreader is pretty clever.

 

Here's the spreader I made for my hardwood legs that go on my EQ-3.  It's all 1x2 poplar.  It's very solid, but still folds up nicely.

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  • tripod.JPG


#9 fireblade42

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Posted 01 September 2014 - 09:34 PM

I built a tripod for my etx90ra last year.  Its spreader has a similar idea of previous posts.  It does incorporate 1.25" eyepiece holders into it.  If I did it again, I wouldn't have drilled the holders completely through.

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  • spreader.jpg


#10 Geo.

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Posted 02 September 2014 - 11:38 AM

To me chains would only seem to work in tension and not provide any resistance in compression. Loading is going not only thrust the legs outward but also bow them toward the center axis of the tripod.

 

Here's a jig I tossed together to route the tracks for the inner leg sections to run in. I used nylon bolts as the runners. The final product is under the LDX55.

 

 

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  • jig.jpg
  • MyPod.jpg


#11 ccs_hello

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Posted 02 September 2014 - 05:48 PM

Old linkies:

http://www.cloudynig...ripod-spreader/

http://www.cloudynig...ripod-spreader/




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