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The Geo arms


Mikko Wilson

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Hey everyone,

 

I've owned my G-50 arm since December '05. An operator here in Norway told me he always loosened the lift button while it wasn't in use. Meaning if he didn't use it for a week or so. He owned a EFP.

 

Is there any truth to this? Should I loosen the lift button so it's more set to lighter cameraes than heavier cams when it's not in use? He meant that is wasn't good for the arm to be set to a high lift level at all times... I don't know. I've been doing this for one year only.

 

LE

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Hey everyone,

 

I've owned my G-50 arm since December '05. An operator here in Norway told me he always loosened the lift button while it wasn't in use. Meaning if he didn't use it for a week or so. He owned a EFP.

 

Is there any truth to this? Should I loosen the lift button so it's more set to lighter cameraes than heavier cams when it's not in use? He meant that is wasn't good for the arm to be set to a high lift level at all times... I don't know. I've been doing this for one year only.

 

LE

 

Hi Lars,

 

Ok.. it concerns not a G50 in mine case.. but I always loosen the lift on the Flyer arm while it is not in use.

Somehow it seems a good thing (in mine head) to do this.., something like extend the arm life ????

 

So, why not ?

 

Best, Erik

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When you adjust the lift on the G50, only the the attachment point of the spring is changed. The spring tension is constant. It's called the "Geo" knob for Geometry.

 

I always put it at about 80% of Max when I'm done on a job, as it's way easier to decrease the lift than increase it when you adjust for a new camera.

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Gentlemen, Due to the unique lifting geometry of the Steadicam arms, including the Flyer, the Ultra and now the G-series, when you are not flying the rig, (links fully up and at rest), the spring us under more tension when the lift knob is backed off. It's counter-intuitive, but the least tension on the spring (at rest) is when the arm is adjusted for maximum lift The most spring tension of all is with the lift knob fully clockwise and the arm links boomed down fully.

 

So... don't bother to change the lift knob when the arm is not in use!

 

best regards, Garrett Brown

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Just a bump here.

 

Any news on the disassembly guide to the G50 and G70 that Garret mentioned?

 

I got the nice lube diagram, but it would be reassuring to have a guide handy if something critical should happen in the field or just when doing the weekly cleansing and waxing...

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or just when doing the weekly cleansing and waxing...

 

waxing? weekly? gosh I hope I am not missing something.... I do a full arm inspection at the start of every job to make sure some bearing does not look out of place or grub screw not right.... but other than that my master arm is completely neglected.

 

Looking forward to making my mind up once and for all... g70 or pro. Thanks guys for a good thread.

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Jerry Holway has agreed to help document the breakdown/assembly/parts replacement steps for G-50 and G-70 arms. Hope to have photos/text/diagrams as needed up on the web by the end of March, so these simple procedures can be done in the field with just a t-handle allen wrencn and a socket driver (and a cyclotron).

 

best regards and thanks for the good posts on our 'geo' arms.

 

Garrett Brown

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Jerry Holway has agreed to help document the breakdown/assembly/parts replacement steps for G-50 and G-70 arms. Hope to have photos/text/diagrams as needed up on the web by the end of March, so these simple procedures can be done in the field with just a t-handle allen wrencn and a socket driver (and a cyclotron).

Would a large hadron collider do in a pinch?

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