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Old 05-30-2017, 04:15 PM   #11
molevitch
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Originally Posted by [FSF]Ian View Post
Those might be double-pole switches. Either for redundancy (so it still works if one connection breaks) or it might switch both a higher voltage signal to do the work and a lower voltage signal to notify some flight computer about the switch state.

Either way, you can take a multimeter, find two wires that are disconnected when the switch is off and become connected when the switch is on, and ignore the other wires

Disclaimer: I have no knowledge at all about real-world avionics. I am just a computer scientist who tinkers with electronics in his free time.
Thanks [FSF]Ian,

I figured there may be some redundancy involved, and you may well be right about some info being passed to flight computers too. I will simply have to test and see which ones do anything. I also realise that I have far too much length of cable and need to shorten it anyway, so will be cutting off the connectors any way. I will save them for posterity....
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Oculus Rift CV1, custom Mi-24 cyclic and collective.

Mi-24 Cyclic and Collective with Magnetic Brakes and Force Feedback
Mag Brake in operation
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Old 05-31-2017, 04:54 PM   #12
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Beautiful work there @molevitch. When I assisted a good flying budy of mine implementing this collective, we chopped of the MIL spec connector simply because it was too much hazzle to find the female part. Then we too the collective head apart and basically just pulled gently in one wire at a time to map out the connections. As Ian mentioned there may very well be redundant connections which you may just want to get rid of.

I look forward for seeing more photos of your project.

Cheers
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Old 05-31-2017, 10:21 PM   #13
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Well, my project may have just taken a turn, as I have just acquired a Mi24/Mi8 cyclic and collective off eBay.... At what I think is a fair price.

So I may be looking to sell my Lynx cyclic. Anybody interested?
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Mi-24 Cyclic and Collective with Magnetic Brakes and Force Feedback
Mag Brake in operation
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Old 06-01-2017, 03:02 AM   #14
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I too need to build pedals, so looking forward to that part as well.
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Old 06-06-2017, 09:05 PM   #15
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Tomorrow I take delivery of Mi-24/Mi-8 cyclic and collective sticks.... To which end I have been searching for images of the mounting mechanisms for the collective.https://forums.eagle.ru/attachment.p...1&d=1496782661

Found a fascinating and useful blog about Mi-8s: http://szextant.blogspot.co.uk/2014/...116420eef6f9f9

Some of you might enjoy and find useful too.
https://forums.eagle.ru/attachment.p...1&d=1496782661
https://forums.eagle.ru/attachment.p...1&d=1496782661

Trip, I was thinking of doing similar pedals to UH-1 type, ie typical western chopper see-saw pedals but now I'm not so sure. Might build something more like the Russian designs. Or buy these.... sometime.
https://forums.eagle.ru/attachment.p...1&d=1496783046
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Mi-24 Cyclic and Collective with Magnetic Brakes and Force Feedback
Mag Brake in operation
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Old 06-07-2017, 02:18 AM   #16
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Nice! Gratz on the real parts for the mi-8/mi-24! Super nice in that picture! Those pedals look like they would feel similar to the MFG Crosswinds actually, aside from the centering force.
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Old 06-19-2017, 05:21 AM   #17
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Quote:
Originally Posted by molevitch View Post
Well, my project may have just taken a turn, as I have just acquired a Mi24/Mi8 cyclic and collective off eBay.... At what I think is a fair price.

So I may be looking to sell my Lynx cyclic. Anybody interested?
HI Molevitch,

I might be interested in your cyclic. Are you in the UK?

Send me a private message?
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Old 06-19-2017, 09:35 PM   #18
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Default Russian cyclic update.

So, I have been busy with accommodating my new components.

The gimbal I had made for the Lynx cyclic did not fit the Russian stick. So I ordered a new piece of aluminium box section, this time 120mm x 60mm x 4mm. I also redesigned the pivot points to the top of the box, as the cyclic has its extension to join onto control connectors. I want to use this to connect to my own force feedback gradients for the pitch axis.

The electro-magnetic force gradients will now be mounted under my seat, and parallel, with the roll axis offset through 90 deg via an ingenious right angled triangular pivot.

The gimbal is mounted almost under the front of the seat, due to the shape of the stick.

Pictures in the morning to follow. Too late tonight! Too hot here in London, and heading for bed....
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Oculus Rift CV1, custom Mi-24 cyclic and collective.

Mi-24 Cyclic and Collective with Magnetic Brakes and Force Feedback
Mag Brake in operation
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Old 06-20-2017, 05:55 PM   #19
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Quote:
Originally Posted by molevitch View Post
So, I have been busy with accommodating my new components.

The gimbal I had made for the Lynx cyclic did not fit the Russian stick. So I ordered a new piece of aluminium box section, this time 120mm x 60mm x 4mm. I also redesigned the pivot points to the top of the box, as the cyclic has its extension to join onto control connectors. I want to use this to connect to my own force feedback gradients for the pitch axis.

The electro-magnetic force gradients will now be mounted under my seat, and parallel, with the roll axis offset through 90 deg via an ingenious right angled triangular pivot.

The gimbal is mounted almost under the front of the seat, due to the shape of the stick.

Pictures in the morning to follow. Too late tonight! Too hot here in London, and heading for bed....
So here are some pics. The gimbal with stick in place, and side attachment for link to force gradient.





Here also first stage of development of the collective from a co-pilot to main pilot. The throttle will have a damper which will attach to the base of the connector rod. The base of the connector rod will in turn attach to its own damper. All will become clear once done. The bracket is made in MDF, but will be beefed up to be more authentic with structural reinforcement, and paint. I will be adding engine controls as well.




And the grip has been stripped down for wiring identification. I acquired a 4-way hat switch from an old Westland collective which is a perfect 25mm barrel fit! From which I have taken a mould for the hat switch top, to cast a replacement for the missing one on the collective.




Now awaiting bolts and such to assemble the cyclic to the magnetic brakes. That will keep me busy for a day or two....

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Mi-24 Cyclic and Collective with Magnetic Brakes and Force Feedback
Mag Brake in operation
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Old 06-21-2017, 07:19 AM   #20
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All looking great!
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