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January 25th, 2006, 08:55 AM
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#1 |
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Major Player
Join Date: Nov 2005
Location: Croydon, England
Posts: 277
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cable support system
Hi,
If you look at the making of "Lord Of The Rings" you will see them using some sort of pulley/cable support system for their cameras, so that they can do all those "camera flying through the trees, looking down" type shots. Has anyone tried to make, or bought (cheaply), a similar system for DV type cameras? |
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January 25th, 2006, 09:23 PM
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#2 |
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Trustee
Join Date: Nov 2005
Location: Honolulu, HI
Posts: 1,961
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I am planning to make one soon. I need to get a mounting plate and new tripod head. I am going to use the same plate (from a Bogen 501/503) for both. This way, I can move from the cable car back to the sticks quickly. I bought plastic coated cable and some 4" nylon laundry pulley wheels from Home Depot. To fix the cable to trees, I have some ratcheting truck tie-down straps. I got a piece of carpet to protect the trees from abrasion. I plan to use a lower rope in parallel to the top cable. This will also have pulleys that will hold the shuttle car down to keep it from swaying. To picture this, my camera shuttle will be traveling between two ropes/cables like two verticle dolly tracks. The lower cable will have an elastic connection (bungees) to the shuttle. This will keep the swaying down, but won't cause the shuttle to bind between two taught cables.
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January 26th, 2006, 07:17 PM
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#3 |
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Major Player
Join Date: Nov 2005
Location: Croydon, England
Posts: 277
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keep us posted, marcus. I'd like to hear how it comes out,
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January 28th, 2006, 05:35 PM
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#4 |
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Major Player
Join Date: Jul 2003
Location: Oklahoma
Posts: 424
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hook up some kind of motorized winch/pulley to actually pull the camera...then you dont have to worry about pulling at a consistant speed to make the move look smooth
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January 31st, 2006, 08:28 PM
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#5 |
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Regular Crew
Join Date: Jul 2005
Location: Los Angeles, CA
Posts: 62
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Here is one i did a few weeks ago...
Here is a bit of test footage, it’s a bit wobbly but it was pretty windy out so it made it sway a bit. The cable you see in the test is my firewire cable going to the laptop so I can use the laptop to record and as a monitor. www.WebDogPro.com/video/cable1.mov I will be motorizing the main drive today and I hope that will make it smother. NOTE!!! One thing i stongly recomend is a safty strap from the camera to the suspension wire, i put one on and it almost was needed. one of the bolts fell off and when i was pulling it in for the night the rig fell into 2 peices, if it came off when using the camera could fall if you dont use a sling. I got some pics of the cable Cam in use today. Alot of my riging is from my Mountain Clumbing stuff. that is about a 40ft span right now but i could go up to 130ft. www.webdogpro.com/video/DSC01332.JPG www.webdogpro.com/video/DSC01336.JPG www.webdogpro.com/video/DSC01337.JPG www.webdogpro.com/video/DSC01344.JPG more info at http://www.dvxuser.com/V3/showthread.php?t=40666&page=5 |
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February 1st, 2006, 06:58 PM
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#6 |
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Major Player
Join Date: Nov 2005
Location: Croydon, England
Posts: 277
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Hi Max,
The rig looks great. I was worried about the stability problem myself - I was toying with the idea to use two ropes, running parralel a few feet apart to support the rig. |
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February 2nd, 2006, 04:28 PM
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#7 |
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Regular Crew
Join Date: Jul 2005
Location: Los Angeles, CA
Posts: 62
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The only reason i don't want to use two ropes is it makes riging it a lot harder, if you don't have the tension on both exactly the same it will make it lean.
What i am thinking about since i want to motorise it i will need some batteries on it is to make a platform about 1 foot wide from the rope and have a small 12V battery on each corner that will add more weight and hopefully making the rig heavier will make it more stable. |
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February 2nd, 2006, 10:30 PM
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#8 |
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Trustee
Join Date: Nov 2005
Location: Honolulu, HI
Posts: 1,961
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If there is only one pulley on the lower rope, it shouldn't make it lean. Of course, it would need to be attached at the center of the bottom of the camera sled. Also, I plan to use a bungee cord between my bottom cable and sled pulley to prevent binding.
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February 4th, 2006, 12:08 PM
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#9 | |
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Major Player
Join Date: Aug 2004
Location: Mystic Ct.
Posts: 477
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Max,
Nice rig, it has inspired me to build my own. I have a question, how long are you drops from the main carriage? I am going to do a two-cable/rope system vs. a single, then create an adapter for a single cable just in case. Thanks, Bill Quote:
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February 5th, 2006, 02:34 PM
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#10 |
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Major Player
Join Date: Aug 2004
Location: Mystic Ct.
Posts: 477
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Having been inspired by this thread I started my own overhead dolly.
Here’s some images what I have so far, just the basic dolly. Next weekend I will make the camera mount. Full Side View http://cinebydesign.net/film/overhead-dolly-1.jpg Close-up of pulley Perspective View http://cinebydesign.net/film/overhead-dolly-2.jpg Full Perspective View http://cinebydesign.net/film/overhead-dolly-3.jpg I decided to make my proto-type pulleys out of aluminum just because it is easier to work with. If they work I will make them out of steel. Bill
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February 10th, 2006, 03:52 PM
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#11 |
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Major Player
Join Date: Aug 2004
Location: Mystic Ct.
Posts: 477
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Here are the latest images, it has yet to go to paint.
http://cinebydesign.net/film/overhead-dolly-4.jpg http://cinebydesign.net/film/overhead-dolly-5.jpg http://cinebydesign.net/film/overhead-dolly-6.jpg
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February 10th, 2006, 05:39 PM
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#12 |
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Major Player
Join Date: Jul 2003
Location: Oklahoma
Posts: 424
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O_O i want one,put a motion control head and pulley on it!!!
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February 11th, 2006, 01:56 PM
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#13 |
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Major Player
Join Date: Dec 2002
Location: Northridge Ca
Posts: 734
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Are you guys aware of the "Sky cam" system, which is used extensively on major league football games, as well as motion pictures?
http://www.dtvprofessional.com/2003/...kycam_pana.htm Wayne Orr, SOC |
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February 12th, 2006, 02:48 AM
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#14 |
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Major Player
Join Date: Aug 2004
Location: Mystic Ct.
Posts: 477
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It’s a real swinger!!
Well hopefully not. :-) I had to see it in the air before the storm on Saturday so I mounted my XL2 and found a place to run some rope. It still needs paint, :-( however there’s time for that today. Bill http://cinebydesign.net/film/overhead-dolly-7.jpg http://cinebydesign.net/film/overhead-dolly-8.jpg http://cinebydesign.net/film/overhead-dolly-9.jpg http://cinebydesign.net/film/overhead-dolly-10.jpg
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February 12th, 2006, 02:51 AM
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#15 | |
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Major Player
Join Date: Aug 2004
Location: Mystic Ct.
Posts: 477
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Quote:
Skycam is cool but a bit out of my budget range. :-) Bill
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