Gyro?

[blueb8llz]

got it. so can i just mount the gyro anywhere on the truck? or does it have to be on top of a servo? im really excited to try this now. im happy i found this thread. anything i should know before i make my purchase? im still a lil confused on how it does its job tho. so if my truck goes towards the right when im trying to go straight, the gyro will make my truck go straight? or does it work when i turn the steering too much and it straightens it for me or something..im confusing myself lol .

[lutach]

Originally Posted by blueb8llz

got it. so can i just mount the gyro anywhere on the truck? or does it have to be on top of a servo? im really excited to try this now. im happy i found this thread. anything i should know before i make my purchase?

I tired to mount mine as close as I could to the Rx and servo to eliminate long wires. It doesn't have to be on top of the servo. Try it out and see what location works best for you. I noticed the Esky gyro have a nice price on them now.

Edit: The gyro can work to counter steer or to keep the vehicle heading in the direction you want. If you want to stop loosing control you will want the gyro to counter steer to correct your vehicle. You can see the other affect in the drifting cars from HPI using the dbox. It wll actually make you look like a professional drifter by allowing the car to keep it's drift until you want to go the other way.

[blueb8llz]

but why does the car even lose control in the first place, i thought its from sloppy steering links or if the turnbuckles are different lengths between the left and right one. wait so does the placing of the gyro affect it...like does it have to be in the middle. or can it be anywhere its convienant?

[lutach]

Originally Posted by blueb8llz

but why does the car even lose control in the first place, i thought its from sloppy steering links or if the turnbuckles are different lengths between the left and right one. wait so does the placing of the gyro affect it...like does it have to be in the middle. or can it be anywhere its convienant?

Diffs play a part as well. Specially with all this powerful brushless systems. I usually spin out if I give my vehicles specially my truggies and buggies a little more throttle when I enter a turn. The gyro doesn't have to be in the middle of the car. I placed mine on the right front of my TC3 where the servo is and I mounted my Rx on top of the servo, but I did try other places. One thing you must do is make sure you keep your emaxx perfectly leveled and not move it much until the gyro's light comes on.

[blueb8llz]

sounds good. hey thanks for all your help lutach. ill report back with my results if i decide to mount a gyro.

[VintageMA]

If you take a look at some of the heli forums you can find out a lot more information on the heading hold (or head locking gyros).

From tinkering with helis a bit, I am not sure I would use a heading hold gyro on a rc car as it does just what the name states it tries to hold the position in the direction you've pointed your heli when rotating.

Go with one recommended for something like the Blade CP or Blade CP Pro.

One thing to note though about most heading hold gyros is that they operate in both standard mode and heading hold mode. From the ones I played with the settings from 0% - 50% are standard operation mode. From 50% - 100% it is in heading hold mode. I guess that give you the best of both worlds for tinkering and trying out different settings.

They came out with a drift version of the mRS4 that had a gyro in it. From what I have read on a bunch of different forums most people have overall not cared for them in the long run. Using a gyro is not a substitute for knowing how to drive your vehicle properly and developing good skills that can transfer from model to model.

[lutach]

That's what I told him. I bought a Imex head locking gyro to see if it could work in my application, but it was the worst purchase I did. The Esky gyros works good, but don't get the new one that came out.

[Robert]

I bought a GWS pg-03. I haven't tried it yet but will let you know how it works out. It was a cheaper unit. $35.00 I believe.

[joeling]

Hi guys,

It's interesting that I'm also relooking at gyros for car applications. Head lock gyros are not going to work in a car. One needs to use a rate gyro (i.e. soem reaction from gyro if there is some input from the gyro sensor). I used a cheap GWS PG-03 rate gyro but found that its setting drifts. Now, I am using a Futaba GY240 headlock gyro with headlock turned off. This is placed in my onroad mini.

What it does is to help the poor driver like me to steer/handle the car during cornering. Coming from offroad, I find that I tend to over steer the mini & that results in a spin out or fish tail action all the time. This makes the mini undriveable for me. With the gyro in, it helps to correct me over enthusisatic steering action & smooths out the oversteer. Bandaid for poor driving.

However, the gyro is not without its own set of problems. The biggest problem faced by in car application is vibration. Gyro is sensitive to that. So, sometimes, the sensors pickup the wrong data because of this vibration.

However, overall - it definitely helps.





Regards,
Joe Ling

[joeling]

double post sorry

[VintageMA]

Just curious - are there any actual racing rules that say a gyro can not be used?

[blueb8llz]

ive been asking for opinions on another forum, and they said i need a FAST servo to make it work. If the servo is too slow, it is always playing catch up, and will actually throw the truck even further out of control. Also, if you are going backwards, the gyro will not work at all. It will simply turn the vehicle in circles.
and they really dont know how much a gyro will help me because my truck is 4wd.

[VintageMA]

I'm not going to make friends on this thread by saying this, but hey..... WTF - just being honest.

Gyros are for helicopters which are completely unflyable without their usage.

Learn to drive your car and you won't need a gyro.

[joeling]

Hi guys,

From my own experience & opinion, I think for offroad cars, gyros will have less impact. If one started from offroad then onroad, then a rate gyro with proper setting will help a bunch to 'smooth' out the steering. I tend to over react on the steering while doing the mini onroad because in offroad, there's not enough steering to go round.

For high speed straight line run shooting for top speed record, a gyro will be useful to keep the vehicle in a straight line I think.

As for using using a fast servo, I think it is not that necessary for onroad. I'm only using a cheap GWS analog servo & it works wonders already.

For going backwards, it will be a handful as the gyro will over exaggerate steering in reverse. That is true.

Regards,
Joe Ling

PS : ufos also benefit from gyros. Guess how many gyros is used to keep this thing afloat ?

[streethot]

So, i got one Telebee gyro......but i couldnt set the servo at middel position, as it should be on foward position.......

all cables are set, gain, all there......but i have noticed i didnt have ATV pot, i seems to compesate gain missalignment........

so, some tried the telebee without ATV??????? my luck is i didnt paid for it

But i got a D-box from hpi on the way.....