proof of flexibility...  ;):P

found out a website for magnets..

thought would be useful..

http://www.supermagnetman.net/index.php

rgds

atul g.

that link was posted by me only in another thread so i know it
anyways they tend to  be more expensive then deal extreme ones
http://www.rcindia.org/rc-outlets-and-resellers/sourcer-of-magnetic-stuff/

http://www.youtube.com/watch?v=Z4CugN0lXXw&feature=player_embedded

Hi Vinay.. what they show in video is using liquid nitrogen.. no way ankur can use it.

Ankur the dealextreme things are the cheapest and if they are rare-earth ones they'll be strong..  btw to check proof of concept u can also check it with any 'weaker' ones u have.

we had bought something similar to hobbyking ones, in the local market in Mumbai. one 33mm*13mm*3mm cost @Rs.60/- !!!
they are quite strong.
So dealextreme is the cheapest!!

Also like someone pointed u need to 'hold' the plane from the sides else it'll quickly flip.

Of course I knew it was liquid nitrogen, also god knows what material they were using, I did not bother to read. I just posted the video coz it was cool and related to maglev.

ok sir i'll use them[deal extreme ones]
and i have already checked the system using 4 magnets i got from earphones...

Quote from: mpp on March 24, 2010, 05:18:24 PM
Also like someone pointed u need to 'hold' the plane from the sides else it'll quickly flip.

sir i have already mentioned my idea please tell if it is useful or not??

Quote from: ankur on March 20, 2010, 08:18:54 PM
well i'll put them in such a way that it is balences
this the the front view of the vehicle

||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|<magnet>                                    <magnet>|
|                                                                        |
|  |<magnet>                              <magnet>|  |
|  ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  |
   |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 

the upper portion is the vehicle whereas the lower portion is the track
the extra material toward the ground of the vehicle will not allow it to get unbalenced
hope u all got what i mean!!
if any there any variation in power the vehicle will bump like its going on a road!!!

Cheers
-Ankur

Hi ankur

If i have correctly understood your setup..here are some problems i think  you will face :

The green magnets are the ones you already have incorporated in your plan. If the forces F1 and F2 are different.. there will be a torque..clockwise or anti clockwise acting on the body of the plane. this will cause the plane to roll...so you should probably use another set of magnets to counter act torque..the ones in red.

Another thing to notice is the slipping tendency of the magnets...this may happen along the wingspan..the clearance between the body and the side supports should be as minimum as possible to counteract this.

Regards

but ankur sir mine idea is different...
ur support is only on the base and the fuse is inside the walls of the support
while in my system i am having two pair of support..one glued to fuse,second to base which the fuse one outside the base supports
so if there is any torque...the plane will try to roll but the outer supports will get collided in their way and will stop the roll
and i'll control that type of roll as u have mentioned in the second pic i'll place them on a  surface as flat as possible to avoid it
actually since magnets will be same it will not be there-or will be very little
i will use that force in the end by putting bigger magnets in the end so it throws the plane into the air
please rewiew my diagram quoted in my previous post..

Quote from: vinay on March 24, 2010, 08:03:34 AM
http://www.youtube.com/watch?v=Z4CugN0lXXw&feature=player_embedded

this is something related to superconductor i guess?

It is very difficult to understand the diagram...if possible try to draw it in on paper ( if possible in isometric view) and then click a pic and upload it here....

ok i'll draw it on open office drawing and post it

ok i made it here it is
I have corrected al flaws i posted in the previous image
now please comment and tell will this work

aha, not it is clear. My doubt is what if the plane moves slightly side wise and the friction between the walls becomes to high to move the plane? This should not be a problem if the thrust of the plane is high. But it will remove the smoothness that maglev intends to give.

well i'll try to lubricate the side for less friction and will think of some other idea

plz comment and tell if this all will work out?

@vinay, i did mean to hurt you, it was just for info.. well, then again just for info the Black thing is actually a high Tc (critical temperature, typically @-100 to -150deg) superconductor, common are YBCO (Yttrium, Barium, Copper Oxide) complex.

@ankur why dont  you try a configuration like on the ship in the movie Matrix..

\__        __\                                    /__      __/
\   \      \    \                                 /    /     /   /
 \NS\     \SN\                             /NS/    /SN/
   \__\      \__\                           /__/     /__/
    \               \______________/              /
      \                                                    /
        \____________________________/

This is just indicative.
there is no need to have NNNN/SSSSS configuration, instead all NNNNN/NNNNN or all SSSSS/SSSSS should also work, it'll eliminate your slip, throw, flip problem and there will be no need to attach hold as they will cause friction(read drag) no matter how u grease/oil it!
here you need to adjust the distances according to your plane's weight, so that it balances well and also the angle of the tilt! but thats relatively easy. And the 'V' shape (depth) will confine it.

Quote from: mpp on March 25, 2010, 11:14:36 AM
@vinay, i did mean to hurt you, it was just for info..

Quote from: ankurkaul17 on March 24, 2010, 09:18:20 PM

Another thing to notice is the slipping tendency of the magnets...this may happen along the wingspan..the clearance between the body and the side supports should be as minimum as possible to counteract this.

Regards

@ankur Kaul i havent understood your second dia, please can you explain?

Quote from: mpp on March 25, 2010, 11:30:12 AM
@ankur Kaul i havent understood your second dia, please can you explain?

Hi mpp

lets assume that magnet 1 is fixed to the base. now if you bring another magnet 2 over it with the same poles facing each other..there are two things that can happen..either magnet 2 will flip over and stick to the magnet 1 or there will be a tendency of magnet 2 to slip over the mag 1 (along the magnetic lines of forces) as in from position 1 to position 2..this can happen from any side...you can see this with any magnets...fix one at the base and try leaving the other magnet over it..you will see for yourself.   i hope it is clear to you.

Regards

Quote from: vinay on March 25, 2010, 07:30:38 AM
aha, not it is clear. My doubt is what if the plane moves slightly side wise and the friction between the walls becomes to high to move the plane? This should not be a problem if the thrust of the plane is high. But it will remove the smoothness that maglev intends to give.

@ankur..vinay is right...the same case with the torque roll....i think it would be difficult to control the fricton with lube...remember its a micro rc plane...in my opinion do not add any weight on the plane...either support or lube...and as it is you have to add magnets to the plane..making it heavy will reduce the chance of success.

and adding strong magnets at the end..i dont think they can help you in throwing the plane in air...it may act as as speed bump too...just my thought. I would love if you prove me wrong....n dont call me sir please..i feel like a oldie.

Quote from: mpp on March 25, 2010, 11:14:36 AM
there is no need to have NNNN/SSSSS configuration, instead all NNNNN/NNNNN or all SSSSS/SSSSS should also work, it'll eliminate your slip, throw, flip problem and there will be no need to attach hold as they will cause friction(read drag) no matter how u grease/oil it!

sir what if in my same config build with same poles
i.e. i mean to say  i just use north poles all the way ?

Quote from: ankurkaul17 on March 25, 2010, 01:41:09 PM
and adding strong magnets at the end..i dont think they can help you in throwing the plane in air...it may act as as speed bump too...just my thought. I would love if you prove me wrong....n dont call me sir please..i feel like a oldie.

what if i gradually increase the power???

Quote from: ankur on March 25, 2010, 04:57:25 PM
what if i gradually increase the power???

That would be like  slowly braking! If such a thing should work then you need to increase the power once the aero plane is over the magnet, which is not possible on fixed power magnets. So best thing is remove the bump. It may not be required at all. The plan provided by mpp above will save you some magnets.

First make a track of 5 to 10 cms. just tape the magnets with a thin tape and see how it works, which ever is successful, then you can build the whole track based on that plan.

Quote from: vinay on March 25, 2010, 05:06:22 PM
So best thing is remove the bump. It may not be required at all. The plan provided by mpp above will save you some magnets.

ok will remove the bump..
and i didn't understand the mpp sirs idea
can someone post a drawing which describes it better... and with better and easier explanation

           __                                        __
\__       \   \                                    /   /      __/
\   \      \SN\                                 /NS/    /   /
  \NS\      \__\                              /__/    /SN/
    \__\          \                           /         /__/
      \              \__PLANE BODY_ _/           /
         \                                             /
            \_________ TRACK_________/

Ankur its pretty easy. The above image is just a cross section of how the track looks like. Think like its looking like when you look the plane from its rear end or front end. In the above pic, the track magnets will not allow the plane to come down.
If the magnet power is not enough try adding a magnet below as well(near the word TRACK in the above image.).

ok i'll try using this.....
thanx to all for help!!!

Make sure the lower edge of the track is more narrower than in that image, this will effectively increase the magnets repulsive power. The walls of plane and track should be like 45 degree angle.