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List of Centre Post Sizes


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#1 John E Fry

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Posted 01 April 2016 - 04:18 AM

Hi all,

I'm trying to compile a comprehensive list of Steadicam centre posts. Just for interests sake really, but could be useful for those trying to upgrade, repair or replace their posts, gimbals or upper/lower boxes.

Here's the rough list I have so far - but what's wrong, incomplete or missing?

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#2 Janice Arthur

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Posted 01 April 2016 - 09:04 AM

John;

Very nice, thanks for doing this.

If you could add a column for arm post diameters that would be helpful too.

Many times people miss that detail because they're are now so many. A la carte parts and generations mean the arms don't often match the gimbals.

Thanks,

Janice
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#3 John E Fry

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Posted 01 April 2016 - 10:18 AM

Hi Janice,

Actually there's already a column for that - Post dia. x sections. Diameters of those I have first, followed by number of sections. I'm missing a few though - know what diameter the Archers & Clippers are?

I'll break that column into two for the final version. Any details not quite right?
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#4 Alec Jarnagin SOC

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Posted 01 April 2016 - 11:23 AM

John, I'm sorry, but this is very confusing.  I believe you're trying to list the center post size AND the diameter of the arm post that fits into the gimbal, yes?  If so, there are some mistakes.

 

The 3/3a is a 1.5" center post and the gimbal requires an arm post with a diameter of 5/8".

 

The Master series and all Ultra sleds are 1.58" center post using a gimbal that takes a 3/4" arm post.

 

The 3/3a standard was why GPI PRO also used a 1.5" center post and the gimbal requires an arm post with a diameter of 5/8".

 

XCS was the first manufacturer to switch to a 2" center post but they kept the original 5/8" arm post size for their gimbal yoke.


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#5 Janice Arthur

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Posted 01 April 2016 - 11:47 AM

John;

Yes make two columns and what alec said.

I missed the distinction.

Janice
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#6 John E Fry

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Posted 01 April 2016 - 11:49 AM

Ah, fantastic! Thank you, that's the sort of response I was hoping for.

Some of the models I can find no info on anywhere so put in whatever 'post' measurements I came across until I was corrected - some of these being the gimbal arm post sizes, not centre post, as you point out. I hoped by putting these in as so obviously wrong it would spur people to correct me, et voila!

I could even add an arm post column if you think that might be useful?
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#7 Janice Arthur

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Posted 01 April 2016 - 11:58 AM

John

Yes an arm post column makes sense to me, that's the column I wanted.

The rig center post not sure what they are indetail but if you looked at monitor arm diameters that would give you lots of info!!!
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#8 Frank Schwaiger

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Posted 13 October 2017 - 01:41 PM

Hi all,

sorry to dig this out again but I can't find the proper figures of the new M1 post diameter. Is it 2"? And if so why are so many complaining?

 

Cheers! 


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#9 Jerry Holway

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Posted 13 October 2017 - 02:33 PM

M1's gimbal post is 1.75. Some of the 1.5" posts are specified at a slightly smaller diameter. There are manufacturer's tolerances to consider, too. 


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