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Author Topic: AERIAL CAM & RIG  (Read 3299 times)
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djr33

« on: March 07, 2005, 10:32:19 PM »

Heres the plan:
Using very large helium filled balloons to lift my camcorder into the air and then using the rig that I build to control it.


Materials/Parts:
10 40" helium filled balloons (attached via string/rope to rig w/ cam)
Cross piece with screw to attach camera
Identical Cross piece to control the rig in the air
4 Rope/Heavy strings attaching the corners of the cross pieces to each other
Miniature Wireless preview camera for realtime preview (to show whats being shot)
Reciever from the wireless camera
Car battery to power reciever
Preview monitor connecting to reciever

What will be lifted by the balloons:
Cross piece + Camcorder + Tape + Wireless Cam + 9V battery for wireless cam
String/Rope

Since the balloons can each individually lift about a pound, this is over 10 lbs of force pulling upward.
The materials should not be heavier than that, and in fact should be lighter. Smiley

Weights:
Camcorder=2lbs, 8.75 oz
Tape: 1.625 oz
9V battery: ~1.5oz
Wiresless Cam: Barely anything... call it: ~1oz
Total for items with known weight: 2lbs+12.875oz... just under 3 pounds...
String/Rope + Cross piece: Least as possible while still strong... less than like... 5 lbs... need some lifting force


Since the reciever is not battery powered, a friend is going to rewire it to work off the car battery. also, rather than using the 10 D cell's that the monitor is setup for, perhaps that can be rewired also.

links:
ebay site for the wireless cam
$13 5" B&W monitor

simple drawing of what i plan...
« Last Edit: March 07, 2005, 10:33:29 PM by djr33 » Logged
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Mrdodobird

« Reply #1 on: March 08, 2005, 06:18:57 AM »

Oooh! Sweet! I hope it works! Good luck with that, dude!  
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ObiJuan2080

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« Reply #2 on: March 08, 2005, 07:03:59 AM »

That's a nice Time Machine you've built there...







...wait...











 :doh:  
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Funk, E

« Reply #3 on: March 08, 2005, 08:31:00 AM »

How are you planning to counteract any issues that you may have with breezes and actually getting the camera pointed in the direction you want?
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ccfilms



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« Reply #4 on: March 08, 2005, 10:57:12 AM »

It looks like a 5th grade science project.  :nerd:  
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Jeremy Krakowski
http://www.myspace.com/ccfilms' target='_blank'>MySpace.com/CCFilms
http://www.myspace.com/jaykrak' target='_blank'>MySpace.com/JayKrak - MUSIC MYSPACE
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Mrdodobird

« Reply #5 on: March 08, 2005, 12:54:10 PM »

I could be wrong, Funk, but I do believe that's what the lower red "X" is for. Assuming this isn't to scale....
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Funk, E

« Reply #6 on: March 08, 2005, 01:09:26 PM »

I know, but still, it's going to be pretty darn wobbly, if there's even the tiniest breeze.
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djr33

« Reply #7 on: March 08, 2005, 09:56:41 PM »

it isnt to scale... well, it basically is, but the distance between the two red X's is going to be 50 feet... everything else pretty much matches up.


PROGRESS: The reciever for the mini cam is now soldered to a wire that will connect a 9V to the wireless camera.
Also, this means the cam arrived today! its awesome, for the size... not good for real stuff, but awesome for spying or previewing Wink

ccfilms, if you mean the picture, i just made that for the more visual learners amoung us in a few minutes in PS... Wink
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Funk, E

« Reply #8 on: March 09, 2005, 06:46:28 AM »

Quote
it isnt to scale... well, it basically is, but the distance between the two red X's is going to be 50 feet... everything else pretty much matches up.

You're going to need more balloons.
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djr33

« Reply #9 on: March 09, 2005, 10:01:52 AM »

actually, these 40" balloons can lift just over one pound each.
if the lifting force = the weight, then it would simply be a state of inirtia, so thats why there are extra balloons.

if you are talking about the string, that will be as lightweight as possible.
if you are talking about the height and lessened pull of the helium, that cant be that much of a facter at even 100 feet up and i wont be going higher than that.

lifting force of helium is explained at:
how stuff works - helium balloons
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Funk, E

« Reply #10 on: March 09, 2005, 10:05:56 AM »

With how big this rig is going to be, you're seriously underestimating the weight of the string and the crosspieces and the things required to make them hold together.  I'm a little leery about the whole idea--in theory it's sound, but it's going to be darn difficult to get a stable shot out of it if it's built like I think you're building it.
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wproductions



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« Reply #11 on: May 09, 2005, 08:41:46 PM »

you need to account for the amount of possible wind resistance met by the surface area on the device...  I like the idea, but what are the dimensions?  I look at that other thread...
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