₦airaland Forum

Don't use a Dvd motor to build a model helicopter. They can't stand that abuse.
They have alot of plastic holding their brush. The'd only melt in a couple of seconds. Use a Pc printer motor,if you can't source for a powerfull motor
The pictures below shows some Dvd motors. Notice the huge quantity of milkish white plastic,holding the frail brushes

Here

Note that,your DVD motors are too small to consider using as a helicopter powerplant.

K

a printer motor hmmm, k . what should I use for the blades cus aluminium ain't helping

a printer motor hmmm, wat abt the weight of such huge motor . what should I use for the blades cus aluminium ain't helping

I didnt just say a printer. I said;a pc printer. The motor you saw me rewind,in one of the pix,was gotten from a pc printer (computer printer) it weighs jus 66grams.
For the blades,use composite made blades,if you can get your hands on it. If you can't, then i'll advice you use balsa wood. If you still can't get balsa wood,then use baton wood. You can find baton wood everywhere. It's used to hold the ceiling boards in place,in your house.
Just cut it to your size,like i did in the pix below.

is there any other device with huge motor cus nobody would readily give u there printer motor

Then buy a large toycar.
Take it to pieces and get it's motor. But i will not guarantee you much success.
Unless you're going to be ordering for a suitable motor.

gentlemen,

keep up the good work. I am following this thread with interest. will chip in where necessary.

am planning of using rechargeable torch batteries bt they weight a ton, wat battery is light, rechargeable and has high volt

am planning of using rechargeable torch batteries bt they weight a ton, which battery do u tink i should use, that is light, rechargeable and has high volt

Elaborate more on that.
You said rechargeable. There are li-ion,li-polymer,nickel metal hydrid,nickel cadmium and lead battery. So which one do u mean?
But the best amongst them all are li-polymer,followed by li-ion.

Elaborate more on that.
You said rechargeable. There are li-ion,li-polymer,nickel metal hydrid,nickel cadmium and lead battery in the rechargeable class. So which one do u mean?
But the best amongst them all are li-polymer,followed by li-ion.

pls give me a detailed and comprehensive tutorial on how u made that swash plate or something like dat

[color=#006600][/color]
ok....
A helicopter blade is articulated (two or more sections joined together in a way that makes it easier to move in all directions). It lead and lag. It flaps up and down. It also teeters. Let's focus on the teetering for now,because that is the primary function of the swashplate.
Now look at the animation below. Notice how the swash plate teeters the heli blade

With a clear understanding of how a swashplate works. One can easily figure out how his swashplate is going to look like.
Note that;the upper swashplate is in contact with the main shaft,through a ball joint.
Here are the main components i made mine from.
(1) Metal ring (cut from a sheet metal)

(2) Grooved plastic ring (has a groov on its side)

(3)3 ball bearings (they end uq in the groove

(4) 1 big bearing ball (for the ball joint)

(5) 3 'L' shape metal.

You are wondering where those 3 ball bearings were going to sit, righ?
They are going to sit on the face of those three 'L' shaped metal. Like in the picture below......

Before assembly,you should have something like in the picture below....

After assembly,you should have something like the picture below......

Sidajili: gentlemen,

keep up the good work. I am following this thread with interest. will chip in where necessary.

@ Sidajili
Tanx alot...... U na Baba naa.

@Preboy
still on the swashplate explaination.

You can figure out how to connect you linkages to the rotor blades. It all depends on your setup. Mind you. You can build your swashplate however you want to. But be certain it does what it should do as a swashplate. Most of all,ensure that all joints and linkages are friction-free to the minimal. I don't have to emphasize the kind of power,a little friction can steal from you. Just like it did,in the picture below,when i was forced to dismantle my rotor head,and inspect the reduction in Rpm.

Below is a picture of my rotorhead,during a spin up test,to test how friction free the swashplate is....

Posting some pictures of the flybar fabrication.....
They are fabricated from thin aluminium sheets. Balanced and leveled as possible...

Some assembly pix....

Here is the flybar,being assembled into the rotor head.

Here's the flybar,comfortably sitting on the rotor head,connected to the swashplate.

.

Here's the one way bearing,being inserted into the rotor shaft......