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Tripod spreaders

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#1 havasman

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Posted 08 March 2018 - 09:51 PM

I bought the heavy surveyors' tripod from UA when I bought the UniStar Deluxe mount and it carries it wonderfully. It cost a few hundred dollars, as I recall. But I think all it is is a $125 CST/Berger tripod (Engineersupply.com) with a really well thought out spreader that makes it work very well for our applications. And the $125 cost is w/o shopping around for price. That source has a range of CST/Berger tripods under what looks like a common picture but the higher priced models are still < $190.

 

I've looked around a bit w/o finding as effective a spreader.

 

Any of you out there know a source for effective spreaders that could be installed on a range of tripods? It could really help some folks looking for gear get more for their $ and increase the stability of their platforms. No rigging is going to make a Berlebach Planet of a surveyors' tripod but there are a lot of 4" refractors out there and some could likely use a better tripod that they might get if the cost was right.

 

tripod spreader, sm.JPG


Edited by havasman, 09 March 2018 - 01:36 AM.

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#2 ChristianG

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Posted 09 March 2018 - 04:55 PM

I would like to know too. My Super Polaris tripod has great legs, but would benefit from a better spreader/accessory tray...

 

No pun intended.

 

--Christian



#3 Kunama

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Posted 09 March 2018 - 05:06 PM

I made one for my AZ-EQ6 tripod: as the leg spread is limited by the top casting, the spreader is a push type.  

Pressing the centre fixture down past a certain point locks it into place.

the position of the clamps on the legs adjusts the pressure the brace puts onto the legs.

 

 

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  • MIS_4587.jpg

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#4 epee

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Posted 10 March 2018 - 09:02 AM

I made one for my AZ-EQ6 tripod: as the leg spread is limited by the top casting, the spreader is a push type.
Pressing the centre fixture down past a certain point locks it into place.
the position of the clamps on the legs adjusts the pressure the brace puts onto the legs.


Ok, so how did you make that?

#5 ChristianG

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Posted 11 March 2018 - 03:33 PM

Some lucky guy has access/owns a fully equipped machine shop!

 

Boy do I miss my graduate student years, with unlimited access to a huge machine shop...

 

--Christian



#6 Kunama

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Posted 11 March 2018 - 03:46 PM

Ok, so how did you make that?

All made on my patio table using a hacksaw, drill and files.....

 

I bought the three 2" diameter aluminium clamps from a stage lighting equipment supplier.

The three brace arms are 16mmx 16mm aluminium solid square bar

the centre 'disc' was cut from 80mm x 10mm thick Al plate

the rest are bits of 'u' channel

 

here are a couple of pics up close and personal:

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#7 Kunama

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Posted 11 March 2018 - 03:49 PM

underside of the centre plate:

 

 

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#8 JakeJ

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Posted 11 March 2018 - 04:11 PM

^^ Looks nice ^^^

 

If you don't have access to a machine shop you can also buy one commercially that fits the AZ-EQ6 from TPI, and does the same thing.

 

I have one and it works fantastic.  

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#9 SteveG

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Posted 11 March 2018 - 08:04 PM

underside of the centre plate:

That's a pretty amazing hacksaw & file build! 


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#10 Kunama

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Posted 11 March 2018 - 09:49 PM

That's a pretty amazing hacksaw & file build! 

Thanks, patience is the key, it took a bit of time, but time costs me nothing........ This spreader was a total equaling $55 USD.


Edited by Kunama, 11 March 2018 - 09:51 PM.

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#11 Castor

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Posted 11 March 2018 - 10:15 PM

Thanks, patience is the key, it took a bit of time, but time costs me nothing........ This spreader was a total equaling $55 USD.

 

Beautiful craftmanship Matt, thank you for sharing the detailed pictures! waytogo.gif 




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