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Thunder Power RC . Real Raptors . Mikado Modellhubschrauber

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Aerial Photography and Video > Observer camera size
 
 
dj_hawaii
Senior Heliman
Location: Formerly Hawaii, now residing in Houston (Katy)TX

Understandable!

I'll wait for the Cads, my neighbor across the street builds nothing but Carbon-Fiber and Aluminum Surfboard racks all day long as a business. I'll show him the pictures from this thread and see if he can handle something this small. Anyway take care and thanks very much for the sharing of the pics. The cads will very much appreciated. Can't wait for more pics.


Bergen Observer | Bergen Gasser | Xcell Gasser & more...
www.RemoteAerialShots.com
07-05-2003 04:09 PM
HOMEPAGE  
 
 
AngelosKey Veteran - Location: nr Oxford, OX11, UK -
the pan mechanics started taking shape

07-29-2003 09:57 PM
 
 
AngelosKey Veteran - Location: nr Oxford, OX11, UK -
Mount fitted on Raptor 60

07-30-2003 11:43 PM
 
 
To The Moon
Heliman
Location: Northern New Jersey

Angelos,

That's a great rig. Where do you get your carbon from?
Do you find it particularly lighter than aluminum?
08-03-2003 09:01 PM
 
 
AngelosKey Veteran - Location: nr Oxford, OX11, UK -
Well, the camera mount and heli are finally finished and now they look like this…
09-30-2003 07:58 AM
 
 
cyber-flyer
Senior Heliman
Location: Boston, MA

Hey Angelos,
Are you using my receiver on this heli? I hope you planning to send it back to me sooner than later.
Val.
09-30-2003 09:52 PM
HOMEPAGE  
 
 
flyboy
Elite Veteran
Location: California

Nice looking machine!

Envy!!
09-30-2003 10:40 PM
 
 
dj_hawaii
Senior Heliman
Location: Formerly Hawaii, now residing in Houston (Katy)TX

Question?

Since the mount is finished, are you still going to "post" the plans (blue prints) as you mentioned earlier.


Bergen Observer | Bergen Gasser | Xcell Gasser & more...
www.RemoteAerialShots.com
09-30-2003 10:40 PM
HOMEPAGE  
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

Val,
I posted the decoder PCB back to you the next day after we last spoke and kept the broken pieces of the RF front-end as originally agreed. I though you had received since I didn't hear from you all this time. I understand you send the bits to me to experiment with entirely out of good will so I don't want you to loose out from this. I have one more decoder PCB from a faulty receiver. Same decoder chip, also 9 channels and has DSC port too, but it is from a different receiver model. I tested it and works fine. Are you happy with this? I'll through in a 128K UltraPAC too with service menu enabler to apologize for keeping the PCB so long on the first place.
09-30-2003 11:32 PM
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

dj_hawaii,
someone asked for them at another thread and I posted the link for the plans there. My mistake! I should have done it here. I originaly posted the URL here http://www.runryder.com/helicopter/t32252p37/ but I will make a copy below.

-------------------------------------------------------------------------------------------

There are a few minor modifications that I made that are not shown on these files but here is all i have for now.

http://www.model-gadgets.com/tmp/brdfiles.zip

The program you need to view/print them is EAGLE from http://www.cadsoft.de/

It is a PCB package but you can export the dimension layer as excellon then convert it to G code which can run on a CNC machine. It will probably need a bit of work first though.
09-30-2003 11:37 PM
 
 
cyber-flyer
Senior Heliman
Location: Boston, MA

Good will

Angelos,
I haven't received anything from you (including no replies to my latest messages), and after 9 months of wait it doesn't matter really. Just want to straighten things out. It was a gesture of good will and I hope you would honor your word.
Please check your PM, or send me a valid e-mail address.
Regards,
Val.
10-01-2003 01:26 AM
HOMEPAGE  
 
 
soul4u
Heliman
Location: swiss

dampers

hi angelos,
great work !
can you please tell me what 4 kind of dampers you use on top of the construction and how you connect the gear to the servo?
greetings
soul
10-06-2003 07:29 AM
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

soul,
I haven't installed dumpers there yet. Just screws for the moment. I am looking for something soft and all dumpers I found so far are quite hard. They are meant to support much heavier equipment.

The gear I found is hollow inside. If you trim a servo horn, the hub of a small servo fits perfectly inside the gear. Just align and glue them with CA. The gears are 19 teeth and 95 teeth from an RC car called Schumacher.
10-06-2003 10:44 PM
 
 
AngelosKey Veteran - Location: nr Oxford, OX11, UK -
Today it was raining all day; unable to fly I decided to do an important modification to the mount that I was planning for long time. A roll axis! Doing this modification means that I am loosing the 3rd layer of vibration dumping (the CSM gyro tape at the base of the camera mounting plate). Anyway, I will upgrade the other vibration dumpers to gel-type ones which will make up for it. See below the photos of the modified camera base. With this design the roll axis is close to the camera and the servo takes the load of the camera weight only. I can only do +/- 30deg rotation of the roll but I believe that this is enough. All other existing designs roll the entire inverted-U frame which requires strong servos with geared reduction. I wonder how look until my roll axis design is copied by commercial camera mounts makers!

Click on the photo for a short video.

http://www.model-gadgets.com/tmp/camroll.avi

11-29-2003 07:14 PM
 
 
GeorgeM
Senior Heliman
Location: Malta, Europe

Hi Angelos...

That is a quite nice and cool idea.
I do not think you'll need all that faceplate to hold your camera, If you just go for a centre part only where the camera mounts are, you'll get about 45 degree rotation on each side, which will be pretty cool.

G
11-29-2003 10:53 PM
HOMEPAGE  
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

I have to agree with Rick. When you rotate and crop the video you loose quality from many factors. First you loose resolution after rotating and croping the video. Then the odd/even frame scan is messed up.

Even for still shots if you take a 5Mpixed file and rotate/crop to make it square you will end up with 4Mpixels if you cut 160pixes from each side and 100 from top and bottom. I need the large files as I regularly print on A3 size.
11-30-2003 08:09 PM
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

John,
I am not talking about what it does (roll) but about how it does it (tilting the base plate of the camera only instead of the entire mount. Can you point me to a photo that shows someone else doing it this way? From what I see Airfoil, Whirlybird and Remote-I tilt the entire mount.

Maybe you should read carefully the posts before you write an unrelated reply. Or perhaps maybe you should try to find a better roll design instead of wasting time reading my stupid thread.
11-30-2003 09:43 PM
 
 
AngelosKey Veteran - Location: nr Oxford, OX11, UK -
Quote 
I don't think anyone will copy the design because its going to have to much movement in the camera by design "I think". Maybe.


Rick, It is very solid but I haven't flown it yet to tell how the video is like. The whole mount (every single axis including the roll) have ball bearings. There is no play anywhere apart from a bit on the servo shaft. I may eventually replace this servo with a good quality digital so that it is able to keep up with the gyro for that axis.

Quote 
I am talking about final cut pro or Adobe Premier pro with a Matrox card.


I am talking about Adobe Premier too and I wouldn't bother with the Matrox card as transfer the video by firewire. However, when you rotate you also have to crop and you loose resolution from the already limited video resolution. Have a look at the picture below. This is what you want to do right? what about all these lost pixels outside the red frame? Then then you have to stretch the red frame to fit the entire screen. Sorry but I can't agree with you. Too much hassle, too much video loss, too much to worry about adjusting the camera before you fly when you can adjust it in flight. I spent 4 hours to add the roll axis and I think it will save many more hours of hassle.

11-30-2003 10:30 PM
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

JohnD,

This thread is for:
1. free plans of my design for people who wont to build a camera mount themselves.
2. constructive comments like Heliview’s regarding the design. Even though it is a negative comment it points out a possible flaw.

If you can contribute to making the design better you are welcome to join it. Therefore in reply to your “I did not want to do this but your last response makes me more than happy to burst your bubble.” I have to say that I would like to see how they did it in case they have a better way of mounting the servo.

Quote 
Big deal, you did not invent it, so what.


I guess it makes no difference to you as you probably never build anything is your life. One of the things that differentiates men from animals in creativity. Let’s see if you have a better way to do the roll. I have one more design on the way.
11-30-2003 10:45 PM
 
 
Angelos
Key Veteran
Location: nr Oxford, OX11, UK

aircombat,
I still have to disagree with you in many statements. Whatever you do to rotate the video will result is losses whether they significant or not. Perhaps you are able to shoot it right on the first place but I am not. I found the need for the roll axis and therefore I decided to make this modification. It doesn’t matter what card you use for importing/exporting video. Firewire is digital and there is no quality alternation in the card if the video goes back to a DV device. Some cards assist in video manipulation to do things faster but they don’t do anything that the PC can’t do in software. It just takes more time.
11-30-2003 10:55 PM
 
 
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GrandRC . CanoMod . Futaba-RC

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Aerial Photography and Video > Observer camera size
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