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HelicopterAerial Photography and Video › My new camera mount development
10-22-2004 10:16 AM  13 years agoPost 1
kima

rrApprentice

Wellington, New​Zealand

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HI,

I am coming to the end of my final year in mechanical engineering and product design, for my final project I decided to further develop my home made camera mount. Can you give me some constructive criticism and any advice or tips that you may have come across with making your mounts / using commercial mounts.

Here are the CAD drawings i hope to begin fabrication in a week.

This will mount will have 3 axies pan tilt and a oil dampened roll mount. All three axies will have Angelos processors with 401 gyros. There will be 6 ball bearings improveing stability and quality
On my diagram
Silver = aluminium (The only aluminium are the skids)
Grey = carbon fibber
Green = nylon/aluminium depending what gears and belts I can find at the moment all I can get are aluminium gears and polyurethane belt Yellow = Pneumatic cylinder
Orange = Piston rod
All the joints and servo mounts including the gear box are Acetyle which is similar to nylon having good strength, Rigidity, machine ability and wear the advantage over nylon is that it is more stable under damp and humid conditions. Nylon can absorb water.

All the electronic gear will be on the mount. The Gear will be mounted on the carobon fibber tube protruding out the back of the mount, keeping the C.G under the helicopters main rotor shaft. This also eliminates mounting other gear on the helicopter and reducing set up time and the hassle of clutter on the helie. The uprights I am going to are the small brackets that are adjustable to suit a particular width of skids, this will be optional as I have not got any on my current mount and have never had any problems, however it may help to keep the mount steady. The brackets will also safely restrain the bunnies. So you do not have to rely on zip ties/cable ties.

The whole mount will be able to be disassembled for travel reducing space and quickly and easily assembled as all joints will be pinned and clamped. The pan and tilt assembly will have an added advantage , the carbon tubes will be able to be changed for longer or shorter lengths to suit the type of camera/video you will be using, so the mount will be able to be well balanced and the same goes for the mount the carbon tubes can be lengthened to give more clearance.

The whole mount assembled includeing servoes battery pack 12 volts (I only use this for the added weight to get the C of G in a suitable position) includeing 500g camera will be 2.2Kg

I will be looking forward to your coments and any advise.

Cheers Kimberley Attwell

K R Attwell
www.PhotoHigher.co.nz

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10-22-2004 01:54 PM  13 years agoPost 2
HeliKalle

rrApprentice

Malmö, Sweden

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Looks very nice but I think you might get some problems with weight distribution, i.e. the CoG will be very close to the front end of the skids. Also you might want to consider having the diagonal inforcement rod pulled rather then pushed if you are working with carbonfiber rods.

/Christian

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10-22-2004 05:07 PM  13 years agoPost 3
fitenfyr

rrProfessor

Port Orchard,​Washington

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Great job

I agree though. You either need to lessen the angle on the skids or extend the front of the skids out more.

Also I really like the dual dampeners on the roll axis. Nice idea.

Jason Stiffey
Fly Fast....Live Slow...

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10-22-2004 06:37 PM  13 years agoPost 4
lakespinner2

rrVeteran

north carolina

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Hi Kima,

Sweet camera mount!! And nice CAD drawaings too.

I love the look of those corner pieces of Acetyle. I wish I had a mill or something to make those. I just made a mount of somewhat similar materials over the last couple of nights and my corner pieces (HDPE) are rather ugly. I stood in front of a grinding wheel for a couple of hours and "gnawed" away the hdpe to lighten up the weight. It's pretty ugly but I guess it will work. I hope to try it out this weekend.

One thing I hope to improve on is to use lighter servos. Mine are "over-servo'ed" and heavier than necessary. With a 5 to 1 gear ratio I believe it could pull a car from a ditch. A much weaker (and lighter) servo, especially on the pan, would probably work well and save some weight. I was even thinking of the micro servos...perhaps a good winter experiment. Here's a link to a picture of it along with some of my other past feeble attempts.

Good luck and keep us posted as it develops.

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10-22-2004 07:04 PM  13 years agoPost 5
kima

rrApprentice

Wellington, New​Zealand

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Helikalle and fitenfyr,

Thankyou for your advice i have been looking at the problem of the C of G as it is going to be to far forward as you have pointed out, i have tryed reduceing the angle of the frame but i am still haveing the same problem, this is due (i think) to that because the whole mount is so light and the center of mass is concentrated in the front around the pan tilt mechanisum. The frame works are 400g alone and the tilt, pan mechanisum is 900g including camera and servos. So to compensate for this i have placed all electronic gear on the opposit end to the camera, the total weight to correct this as in the diagram is about 1.3Kg

Am i thinking about this correctly, or is there a better solution?

Kimberley Attwell

K R Attwell
www.PhotoHigher.co.nz

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10-22-2004 07:05 PM  13 years agoPost 6
gpyros

rrKey Veteran

On a beach in Mexico

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Kima:

First, I want to say it looks very functional and will probably work fine.

Now don't take this the wrong way, it may be more a comment on the educational system than your specific mount!

To me, it just seems to look like just about every other mount out there. School is the time to think, experiment, and come up with wild and crazy ideas that are pushing the boundries.

For someone in their final year of product design (even with the mechanical engineering to tie it down to earth), I was really looking forward to seeing something fresh and exciting, not a combination of other existing mounts.

Now before you get upset and wonder where I come up with this stuff, I did go to a design school (a while ago!) and came out with a degree in architecture, I've taught architectural design at local colleges since then, and have been on juries to critique both school and 'real-world' projects.

So please, take it as an opinion only, and one I would say to anyone starting out. Go crazy, have fun, design away - when you get out in the real world you will have many more constraints that will tie you down, now is the time to get creative.

Fron one designer to another,
Greg

Maxi-Joker helicam
Joker-CX helicam
Graupner Jet Ranger (elec)
Raptor-50
Logo-10
9CH

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10-22-2004 07:19 PM  13 years agoPost 7
kima

rrApprentice

Wellington, New​Zealand

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Hi akespinner2,

I had a look at your mount and it is not bad at all especially as it has been mad at home on a grinding wheel, good on ya.

gpyros,

Thanks for the comment, and you are correct I have been very slack; I have 4 weeks left and just run out of time. I had envisioned great things and some far out concepts, but reality and time have caught up to me, i already had a prototype mount so i am improveing that design but hope fully later on down the track i will come up with some thing different

Cheers kimberley Attwell

K R Attwell
www.PhotoHigher.co.nz

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10-22-2004 07:49 PM  13 years agoPost 8
gpyros

rrKey Veteran

On a beach in Mexico

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Kima:

When you are ready to do your next one let me know, I'd love to help you out on it and come up with something really, really cool!

Cheers,
Greg

Maxi-Joker helicam
Joker-CX helicam
Graupner Jet Ranger (elec)
Raptor-50
Logo-10
9CH

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10-23-2004 12:00 AM  13 years agoPost 9
FlightPower

rrVeteran

Herts UK

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Do something different - make a gymbal ring - I'll buy one

JC

Julian

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11-29-2004 07:29 AM  12 years agoPost 10
kima

rrApprentice

Wellington, New​Zealand

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Hello every one,

Well I have finally finished my camera mount which I have been building. There have not been any changes from the CAD drawings and everything has fitted together nicely. I have not tried it out yet but hopefully I will be able to try it out this weekend depending on the weather.

I weighed the mount but it was only with battery and servos and it was only 1.8Kg so with camera will be around 2.3KG I will have to weigh the whole mount tomorrow on some scales at work.

I am also very lucky as I have had a web site designed by some students at Wellington Institute of Technology, and it is very well done so I am rapped. All I have to do now is get out there and do some marketing and make some sales. Here is the link to my web pages Photo Higher

Now my next project I want to work on is the ultimate camera mount, so I will have to get some ideas from you guys and do some brain storming.

I hope everything is going well for you guys.

Cheers Kimberley Attwell

K R Attwell
www.PhotoHigher.co.nz

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11-29-2004 08:39 AM  12 years agoPost 11
gpyros

rrKey Veteran

On a beach in Mexico

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Nice job on the construction!

Greg

Maxi-Joker helicam
Joker-CX helicam
Graupner Jet Ranger (elec)
Raptor-50
Logo-10
9CH

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11-29-2004 09:09 AM  12 years agoPost 12
HeliKalle

rrApprentice

Malmö, Sweden

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That is one of the best looking mount I have ever seen - Great work!

Have you had a 5-axis mill to make the joints?
What material is the black plastic looking thing (POM)?

/Christian

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11-29-2004 11:20 AM  12 years agoPost 13
blazek

rrApprentice

Greece-Athens

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GREAT JOB!!!!!

keeep up the good work!!!!!!!! waiting to see the results( 1st pics ) by air!!!!!
regards
john

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11-29-2004 12:04 PM  12 years agoPost 14
FlightPower

rrVeteran

Herts UK

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Nice job, but I'm betting that you will be moving the camera backwards on it's tray as the next tweek!

Good luck

Julian

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11-29-2004 04:43 PM  12 years agoPost 15
kima

rrApprentice

Wellington, New​Zealand

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Thanks for the replies,

The black plastic is Acetyl we use it at the company I work for all the prototypes it has very good properties. I will get some figures for you when I get back from work.

I may need to move the camera back a little but not by much, as it is the C.G is 60mm from the rear roll bearing which is not too bad. All the moments produced by the camera hanging over the front are compensated with having all the weight (batteries, downlink, etc) on the opposite side.

Cheers Kimberley Attwell

K R Attwell
www.PhotoHigher.co.nz

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11-29-2004 05:29 PM  12 years agoPost 16
MPA

rrElite Veteran

Australia

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Acetyl = Delrin(tm)

Nice lookin rig.
You got the acetyl from work is handy, stuff aint cheap.

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02-17-2005 09:52 PM  12 years agoPost 17
modifyit15

rrVeteran

Spartanburg, SC

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were did you find joints like that for your rods?

Fly 60% take heli home Fly 150% take parts home

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02-17-2005 10:01 PM  12 years agoPost 18
kima

rrApprentice

Wellington, New​Zealand

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I drew up all the joints in solid works (3D modeling program) and then had them CNC machined. I am wanting to produce sell the mount as a complete system, and just looking at alternative methods of machineing the joints etc as CNC machining makes it very expencive.

K R Attwell
www.PhotoHigher.co.nz

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02-18-2005 12:13 AM  12 years agoPost 19
fitenfyr

rrProfessor

Port Orchard,​Washington

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Great..

Looks VERY nice and light.

Look me up when you are ready to produce them.
I would like to try one out.

Jason Stiffey
Fly Fast....Live Slow...

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02-18-2005 02:51 AM  12 years agoPost 20
FLAP

rrKey Veteran

Michigan

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very cool looking mount! Let us know the price when you figure it out.

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HelicopterAerial Photography and Video › My new camera mount development
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