gyro

[genghis khan]

does anyone know anything about gyros? I want to put one on the trottle channel in my E-MAXX, so that it could level itself in flight. does anyone use one??

[blueblast02]

A gyro will not level out a truck. It doesn't even level anything. It just makes it harder to flip and turn. If you have one in your truck it would make the handling horrible. When you turned the wheels the truck would want to keep going straight.

[trxrustler11121]

He's talking about putting a gyro on the throttle linkage. A gyro isn't a weight. But it wouldn't work. There's a thingy in the Towerhobbies magazine that levels out trainer planes whenever you let go of the sticks. I would think if you put tat on your throttle it would work the same. Just set it to put the throttle at a certain level.

[blueblast02]

A bike works wheel works like a gyro. The only reason you can balance a bike is b/c the wheels don't "want" to falll over. When you stand still on a bike you cant balance well. So if a gyro was in a truck it would keep the truck in the same position that it left the ground in. The truck wouldnt want to move.

[trxrustler11121]

And thats what you would want. So you do not nose end or tail it.

[blueblast02]

What if it takes off at a steep angle? And you want to land flat.

[trxrustler11121]

The truck's gonna be nose heavy in the front anyway. Plus it's better to land with the rear tires than the front.

[blueblast02]

But the gyro wont let it move. That is what this whole forum is about.

[genghis khan]

I think i was misunderstood. already, i can tilt my E-maxx forward or backward in the air by accelerating or braking. the inertia of the heavy tires makes the truck tilt front or back with depending on the throttle. my question - would a giro do this too?? I mean, would it adjust the throttle according to the tilt of the truck so that the truck would level itself in the air??
Also, it's my understanding that the gyros are solid state; that is their is no rotating disk to resist tilt. Thanks:p

[blueblast02]

In a TRUE gyro (geerow) there is lettuce, meat (usually chicken), chese and some type of sauce.:rollin: :rollin: (Staurday Night Live) Its an old one. You likada juice ah? You won somore juice ah? Igetchuda juice. My favorite skit. Aaaaaaaaahhhhhh the memories.

Anyways in a gyro (jirow) there is a rotating disk. And Newtons Third law of Gravity states that anything in motion tends to stay in motion unless acted upon by an outside force, either the inertia of your truck tires or the ground. In other words the gyro, if strong enough, will only make the Maxx's handling on ground worse, b/c the gyro will want to go straight when the truck wants to turn. You have a better chance of landing your truck on all fours by using your massive tire inertia under the control of the throttle, which can be tricky, than using a gyro, the second one. You will just cuase more problems that way.


Read my signature.

[blueblast02]

Nobody wants to mess with this. I am the one that actually pays attention in science and physics.

Dont argue with the science nerd.
He might run away in fright after he preaches about physics for a while.

J/K

[genghis khan]

yeah, that is what a real giro is. but this isn't a real gyro. this thing only senses tilt, it does'nt resist it. it then adjusts whichever a channel accordingly. so it could sense tilt, use the throttle to level the car (yes, the inertia of those big heavy tires will rotate the cat in the air). it turns off when you use the =throtle channel, it only works in neutral. Compris????:p :p :p :p :p

[blueblast02]

I used to have a Maxx and I tried to land it right by using the throttle.

[blueblast02]

Yes, but what happens when you turn. The gyro senses tilt and gives a little throttle, but then it feels the tilt on that and does it again until your Maxx is going down the track at 40 mph and you cant stop it.

[genghis khan]

I'm probably wrong, but i thought that the gyro was only active when the throttle was off. then, as long as i'm driving, it wont change anything.... that is, if io'm lucky. i wouldent expect to actually work, but it was a fun idea.
perhaps i'll try it sometime

[Arcey Freke]

Gyros do not send signals to the RX when you are controlling the channel. It only works when it is left to its own devices. sounds cool! lemme know how this works!

[kyoshoforce]

I have a heli, and a gyro when installed in a particular receiver channel (lets say the rudder) will sense any movement, and add the appropriate input to correct that motion. So if the heli starts to rotate to the left, the gyro senses it instantly and acts against it, in an effort to keep the heli from swivelling in the air. But the degree to which it does this is determined by how you have set up the gyro, such as the amount of gain and your rudder trim.
Well thats how an R/C aircraft gyro works anyway. If you're talking about any other kind of gyro then forgive my brief explanation.

[alanhsu]

I know this is an old post, just its interesting.

So this is what I know

there is 2 kind of gyro.

what we should get is a heading hold gyro.


It will hold the angle of your car dead on and when you input command it will deactivate.

Unlike the cheaper gyro which counters every movement and won't lock the car dead on. you will still have control but it will be less.

[alanhsu]

so with 2 heading hold gyro.

you car will go straight forever, will auto correct heading.

and in the air your car would hold its position unless you change it. and it will hold the new position until you land.

[gabyos85]

There is an easy way to solve this. Everybody has a different version, ho wants to buy a gyro and try it?

A gyro works for tilt, just setup the gyro in the center of a coplanar surface (don't wory about height), but in a vertical position (rotate it 90 degrees from the standard position) [a gyro for acrobacy helis may work in free space, so is harder to get deformation inside it's sensor]. Depending on the track and suspension of your truck, the other option is to put a gyro used in battlebots so it can resist more hits. You need to put the gyro inside a small box with soft foam around to help resist a little bit of impact. Then put an extra weight in the back of the car, so it always is going to try to rotate with the nose up. By this way you can setup the gyro to add trottle when the car starts rotating by certain range. If is rotating too much to the front, it needs to brake really hard to change direction of rotation. And the result is that the inertia of the wheels are going TO HELP to mantain it straight in the horizontal position.

Remember that the gyro don't works if you are sending signal to the same selected channel. Test it a few times to get the correct configuration, depending if your truck is 4WD or 2WD (moment of inertia changes).

This theory is based in my experience with robotics and RC systems. So make sure to test it with cheap gyros, so you can improve it with real life results and take your own conclusions.