Lynxmotion Tech Support

I had a crazy idea. What if the physics of a helicopter were to be incorporated into the controls of a hexapod?

We're already using a twin-joystick control (PS2 or R/C transmitter). To fly an R/C heli (collective pitch, single rotor), we (US) use the left stick for collective and yaw, and the right stick for cyclic.

For our hexapods, we can translate (move in any XY direction), and/or rotate. Similar? Yes, to an extent. (accurate?)

What if we had the exact same controls (collective, cyclic and yaw) of a heli? Add to that the interactions (physics). Maybe pitch and roll the 'bot accordingly.

Sound interesting?

What are the quadcopter controls like?

Alan KM6VV

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www.multiwii.com

Good idea
Of course.. i am not programmer.. lol

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

thanks, I'll take a look.

Getting really interested in 450 sized heli.

Alan KM6VV

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Heli or Quad..:p

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

Heli.

There's just something about flying with cyclic and collective controls... Probably something I got from my dad while he was alive. He'd LOVE this!

http://www.rccarmax.com/trex450sportkitkx015075-p-2615.html

Like I need another hobby! See what you've done!

Alan KM6VV

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I have a t-rex 450 a 500 and a sjm 430 and a quick of japan and a gaui ... lol

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

So you DO have a heli! You've been holding out on me!

I found a TRAX 450 on ebay. Also found a clone on HobbyKing. Still doing my do-diligence.

What do you think of the 450? Clones? Any advice?

Alan KM6VV

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If you really want to get into Heli..
I would suggest getting a gigger than 450 size.

500 size are much more stable and easier to learn



There is a lot involve..
What would be your price range.. do you have a transmitter ?

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

I thought the 450 was my price range... LOL

Is the 500 that much different? I still need to learn to hover!

I'm thinking of buying the Phoenix Sim. What do you think?

One could go really cheap, and get a Hobby King 450 for about $130. $3 servos? I'm not so sure that's a good idea to learn with, is the quality there?

I did join RCHeliSpot, some discussions on 450 and clones.

Alan KM6VV
(I've already got my tail numbers!)

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Don't buy a HK 450...

I build 3 of them and they are real poor quality.
You will hurt yourself.. That's spinning fast.

In the other hand the 500 is much more strong
http://www.hobbyking.com/hobbycity/store/__14862__HK_500CMT_TT_3D_Torque_Tube_Helicopter_Kit_Align_T_Rex_Compat_.html

Do you have a transmitter that ca do Heli ?

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

I'll start looking at the HK500. That's TWICE AS BIG!

Can I still learn on it as a 1st heli? Sim work should help. I do know the physics of flight and how the controls work, and I've flown a little... ;>)

My brand new (Christmas) Futaba T7C should fill the bill. Sounds like I'll need to setup curves for pitch and throttle on it. Also set the pitch of the blades, and align a bunch of stuff.

I might already be getting the Align TREX 450, Wife's been mum about the E-bay link I sent her. Usually a good sign.

Alan KM6VV

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It is not twice as big..
450 heli have 325mm blade
500 heli have 425mm blade

I don't like the sim.. but that's me..

The 500 will be easier to fly.
Less nervous since bigger.

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

You're right, I probably read it wrong on a quick comparison. Dia of one vs Blade of the other.

500Main rotor diameter: 970mm
Main Rotor Diameter:700mm

So did you learn on the 500? I don't want to spend time un-learning a coaxial. And I'd really like to go flybarr-less, but that ups the ante.

I get it that bigger birds are easier to fly. But, the bigger they are, the harder they fall?

Alan

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No..
A 250 size heli hiting the ground will self destruct like a 500 ..

Basicly.. the advantage of a 450 is price of parts - batteri etc.. smaller .. cheaper.

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

Don't forget to budget for replacement parts. You will crash, and it will break, many times...

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Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...