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Aircraft mountings

 
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militumman74



Joined: 19 Feb 2017
Posts: 24

PostPosted: Sat Jul 13, 2019 10:06 am    Post subject: Aircraft mountings Reply with quote

I thought I had a great idea to glue magnet on the underside of the aircraft and put a ball bearing on top of the stand. Then I could position the plane at whatever attitude I wanted.

Doesn’t seem to be working out. The.magnet wants to draw the bearing to the edge of the magnet, not the center. Maybe I need different magnets.

Anyone try something like this?
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chrisswim
E5


Joined: 15 Dec 2004
Posts: 2619
Location: Jacksonville, FL

PostPosted: Sat Jul 13, 2019 10:11 am    Post subject: Reply with quote

Couple of thoughts:
1. Use two magnets, be sure to check that they do not repeal each other, or
2. Flat piece of metal.
3. Use a stand that has ability to rotate.
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BattlerBritain
E5


Joined: 29 Apr 2005
Posts: 618
Location: Somerset, UK

PostPosted: Sat Jul 13, 2019 2:08 pm    Post subject: Reply with quote

I've found using a hexagonal nut (ferrous) and using the flat sides is better than a round ball.

Also use bigger magnets.

The key is to get enough friction to prevent movement.

I was using 3mm diameter magents but ended up using 5mm x 3mm magents taken from a kiddies set of sticks with magnets at the ends.

Hope this helps,

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redleg
E5


Joined: 16 Dec 2004
Posts: 847
Location: Riverside, CA

PostPosted: Sat Jul 13, 2019 3:40 pm    Post subject: Reply with quote

Why did I never think of using nuts??? I'm running out to the garage now to rummage through my screws/bolts/nuts!!
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Mk 1
E5


Joined: 23 Dec 2004
Posts: 2272
Location: Silicon Valley, CA

PostPosted: Mon Jul 15, 2019 11:03 am    Post subject: Reply with quote

I have read of folks that put some metal object on the magnet to effectively add a socket for the round ball bearing to fit into.

I don't know if it would work with a ferrous nut, but it might. Any ferrous material will "transmit" the magnetic field to the ball bearing. If the nut is thin enough, and the magnet is powerful enough, then the interior threaded portion of the nut should make an effective socket for the ball bearing to fit into. This will prevent the spherical surface of the ball bearing from migrating to the edge of the flat magnet.

It should also work with any circular (interior) ferrous object, like washers and spacers. These may be more readily available in thin enough forms. I'm sure it doesn't take much depth to the "socket" to make it work.

Caveats apply. I have never tried this technique. Only passing along what I have understood from reading what others describe.
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militumman74



Joined: 19 Feb 2017
Posts: 24

PostPosted: Mon Jul 15, 2019 12:15 pm    Post subject: Aircraft mountings Reply with quote

The hex nut sounds like a good idea. Add some friction and keep the ball from migrating to the edge of the magnet. Have to find some of suitable size
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BattlerBritain
E5


Joined: 29 Apr 2005
Posts: 618
Location: Somerset, UK

PostPosted: Mon Jul 15, 2019 1:54 pm    Post subject: Reply with quote

I don't use the hole of the hexnut with a ball but just the flat sides of the nut.

Stand the nut on it's flat side on the flight stand with a magnet on top of the stand.
Add another magnet on the opposite face of the nut and attach plane there.
Or add other magnet to face next to opposite to give bank and/or pitch. Rotate nut accordingly to give a bit of both pitch and roll.

It gives 60 degs bank and/or pitch, which is all you need really for a game.

Trying to use a ball means you need really really strong magnets and is a bit of an over complication.

But try it and see.

Some have gotten a ball and socket to work but hexnuts are cheap, simple and works for me.

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