Mini camera jib cable pulley system plans? at DVinfo.net
DV Info Net

Go Back   DV Info Net > The Tools of DV and HD Production > Support Your Local Camera > Jibs / Cranes / Booms

Reply
 
Thread Tools Search this Thread
Old August 19th, 2003, 12:56 PM   #1
High School Student
 
Join Date: Apr 2003
Location: Canton, Ohio, USA
Posts: 609
Mini camera jib cable pulley system plans?

Hey, does anyone know where I can see some good pictures of how the pulley systems on some small jibs work, or some plans for it? I have a pretty good idea, I know the pulley at the tripod mount can't move, and when you tilt the jib, it keeps the camera level. Right? I'm no engineer, or machinest, or whatever, but i'm not all that dumb either, but I don't understand where you put the bearings at, for smoooooth movement, heh. I DO know how bearings work though. :D

I'm going to whip up a tripod mount plate and a camera plate thing, whenever I can figure this out. :)

Thanks.
Alex Knappenberger is offline   Reply With Quote
Old August 20th, 2003, 09:53 AM   #2
RED Code Chef
 
Join Date: Oct 2001
Location: Holland
Posts: 12,514
You can use a cable system to keep the jib level. Then you can
also use a cable/pulley system to operate the head remotely.
I'd guess you need bearings to keep this all running smoothly.
__________________

Rob Lohman, visuar@iname.com
DV Info Wrangler & RED Code Chef

Join the DV Challenge | Lady X

Search DVinfo.net for quick answers | Buy from the best: DVinfo.net sponsors
Rob Lohman is offline   Reply With Quote
Old August 20th, 2003, 11:59 AM   #3
Wrangler
 
Join Date: May 2002
Location: Vallejo, California
Posts: 4,049
On the axle mounting the arm to the tripod plate and on the arm to the camera plate, you should use thrust bearings to avoid too much friction. They can probably be just brass washers but without them, the system won't move as smoothly as it can or should.

Even my really cheaply constructed Cobra Crane uses needle thrust bearings.
__________________
Mike Rehmus
Hey, I can see the carrot at the end of the tunnel!
Mike Rehmus is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Support Your Local Camera > Jibs / Cranes / Booms

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 03:32 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network