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ProModeler Scorpion Power
HelicopterTools and Field Equipment › ballancing my heli
05-31-2010 08:27 PM  7 years agoPost 1
cheepstr

Senior Heliman

Ferndale WA

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Is there a tool to ballance your heli from the main shaft other than holding it by hand?
anyone make your own tool? I would like to see them please
I have a cupple idas for a tool but would like to hear from others befor I build it thanks

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06-01-2010 01:00 AM  7 years agoPost 2
cheepstr

Senior Heliman

Ferndale WA

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ballancing my heli

Looks like no helis get ballanced lol just kidding
is there any advice that you can give me please

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06-01-2010 02:04 AM  7 years agoPost 3
gorn

Elite Veteran

Western Australia

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just make 2 upright square posts, about 1 inch diameter.
Weld the tops shut, glue some rubber matting on there.
Sit the main blade grip bolts on top of those, hands free balancer.
If you make certain that the rig is square, and you check the table you sit it on for level, then put a small bubble level on the boom.

There was a guy here on RR that made something like this, cant remember who it was, but it was simple, and well done.

For the love of the hobby

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06-01-2010 02:07 AM  7 years agoPost 4
gorn

Elite Veteran

Western Australia

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as for advice without making anything....

The usual story, lift from the flybar, and note the angle of the boom.
The boom will always be at a 90deg angle to the main shaft, so is a very good guide.

With electric, just shift that battery around til you get it to sit level.
With nitro, you must half a half tank of fuel on board.
You shift C of G with either moving your RX pack around, or trying different packs that are different weights.
Or if its nose heavy, you can add a little lead weight to the end of the boom. The weight is minimal, but being so far back, it plays its part well.

For the love of the hobby

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06-01-2010 02:36 AM  7 years agoPost 5
CX1

Key Veteran

Canada

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I hold mine sideways allowing the heli to pivot on the main shaft by holding on to the grips works better for nitro than electric

" Team Protoast "

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06-01-2010 02:45 AM  7 years agoPost 6
cheepstr

Senior Heliman

Ferndale WA

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thanks guys

that's some good advice I never thought about a different battery to help ballance the heli

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06-01-2010 09:33 AM  7 years agoPost 7
Romak

Senior Heliman

Scotland

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I made this up from some bits of ply, crude but effective. The picture shows model supported on fly bar but I would normally remove blades and support by resting blade grips on the top of the device.

Cheers

Rod
14sg....... ;-)

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06-01-2010 10:34 AM  7 years agoPost 8
cheepstr

Senior Heliman

Ferndale WA

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ballancing heli

great jod with the tool
I was wondering why they dont sell somthing like that? I'm sure that it would sell.

I need to make a portable version of that for my trex 600n and 700le

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06-03-2010 01:00 AM  7 years agoPost 9
Ironhide

Veteran

dexter mi us

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You can just do this ^ It works .

Grabbed this from Barts pics

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06-03-2010 01:16 AM  7 years agoPost 10
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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If you don't get perfect balance (I just hold by the flybar) whats the downside. Might have to trin the elevator and the heli works a tiny bit more for hover ? What about vibration ?
Paul

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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06-24-2010 08:08 AM  7 years agoPost 11
TCAS

Heliman

Raleigh, NC - USA

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A very simple, low cost method for determining the location of the Center of Gravity of your helicopter is to use a wooden dowel rod under the skids. Start with the skids sitting on the dowel rod directly under the main shaft. Then move the helicopter forward or aft to balance it on the rod. This will indicate the current location of the CG and how far it is from the main shaft.

If you want to be even more technical you can take the all up weight of the helicopter and use the spot on the skids that is in line with the main shaft as the zero reference datum. From there you can determine the weight, arms and moments of the helicopter as you move batteries, other gear or weight around on the helicopter to bring it back into balance.

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06-27-2010 12:34 AM  7 years agoPost 12
cheepstr

Senior Heliman

Ferndale WA

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thanks

I'll try that

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