Pro 1 center post attached to the base?

[Andre Trudel]

Hi everyone,

I am curious to know how the old Pro model one center post was attached to the base. I assumed the clamp just tighten down on the lower post until I bought one of the clamps last week. It’s not perfectly round; it has two notches in it. If anyone has pictures or a good description of the old post, I would greatly appreciate it. Thanks.

 

[RonBaldwin]

it's a bayonet mount...like a lens. You would put it in a quarter turn one way or another then straighten it up and tighten. If it came loose it wouldn't just fall off (nice).

[Andre Trudel]

Thanks for the answer Ron.

 

A few years ago I modified my Steadicam efp sled with an Mk-v carbon fiber post. It’s a nice mod but the post is 19” tall combined with the tall profile of the efp lower electronics, it can feel quite long.

 

I bought the pro one clamp because I would like to reattach the original post and I believe the mounting screw pattern on the clamp is the same as the Mk-v (4 screws). Because of that bayonet pattern on the clamp, the lower post of the two stage efp will not fit. I’ve never seen a pro 1 post before so, I’m not sure how pro made that shape to the post. I assume by looking at my pro 2 that it was a machined piece that the post screwed onto? I’m trying to figure out this dilemma. Any ideas would be greatly appreciated. Thanks again.

 

 

For some reason, I cant upload pictures...

Edited December 5, 2013 by Andre Trudel

[Andre Trudel]

I guess I was able to attach pics. At the top are pictures of the mod efp base with the Mk-v post.

 

 

Pro one “clamp” with Steadicam efp original post.

Edited December 5, 2013 by Andre Trudel

[Randy Nolen]

I still have all of the Original PRO 1 parts, except the post. I don't remember exactly how the post mounted to the upper & lower junction boxes and battery base. I don't think it was a bayonet mount at this point, but maybe this picture will help. Give Jack at GPI a call, maybe he can figure it out.

 

I tried attaching a picture of these parts but it didn't work. I posted these parts for sale on the Marketplace some time ago, so I don't know if the picture is still there. I can email you the picture if you want.