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Chopper Time - DIY Helicopter Collective

Discussion in 'DIY peripherals' started by Spit40, Nov 29, 2018.

  1. Archie

    Archie Eternal tinkerer

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    Last edited: Feb 8, 2019
  2. Spit40

    Spit40 VR Rift Flyer

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    Hi Archie. Funny you mention that. I do have such a project underway, but i'm working on a new system. There are a ton of good things on thingiverse but they fall down in one area. They fail the 'not invented here' test. Actually i've got an idea for something quite modular that can be moved around to adapt to different aircraft.
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  3. Spit40

    Spit40 VR Rift Flyer

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    @Archie - on this subject I'm working on a throttle quadrant at the moment. Its going to be well engineered using good sealed bearings. I can handle the rotation and the hall sensor stuff fine. The problem I have is how to introduce some friction. I did a flight stick and there's no problem there - bit of bungee for self centring, but everything else I want to build needs some friction.

    There's a bearing and a magnet/sensor in the middle of this, so I can't put a tightening bolt in the middle. Maybe a brake shoe type thing with a spring, but there isn't much space below and its getting fiddly. If I do go with the brake shoe idea, any thoughts on a material for it?

    upload_2019-2-8_9-58-25.png
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  4. Spit40

    Spit40 VR Rift Flyer

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    Is it possible to buy sealed bearings with built in high viscosity? I can't find anything online
  5. Spit40

    Spit40 VR Rift Flyer

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  6. Craig Mansfield

    Craig Mansfield New Member

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    Looks great!
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  7. Archie

    Archie Eternal tinkerer

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  8. Spit40

    Spit40 VR Rift Flyer

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  9. Christoph

    Christoph New Member

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    Hi there,
    just signed up to annoy you with some questions:
    1. What's your experience with the diy collective so far? Working properly on Sims (like DCS, Xplane...)? Is it really Plug&Play with the Bodnar-Board?
    2. Aren't the nuts/screws of the mating point loosening after a while?
    3. Is it sensitive enough to use a pot instead of hall sensor?
    By the way, thanks for the great inspiration !
  10. Spit40

    Spit40 VR Rift Flyer

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    Hi @Christoph

    1. Working properly? Absolutely but I've only tested on FS2. I have x-plane but haven't tested it yet
    2. nyloc nuts. No problem
    3. Very happy with sensitivity, but if I was doing it again I'm now a hall sensor convert and would go that way

    Phil
  11. Christoph

    Christoph New Member

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    Thanks for your quick answer. Thought about doing the same with hall sensors myself. But how to fix the magnet to the smaller gear wheel. Would some hot glue just do the job? And would I need plastic gear wheels instead of the metal stuff you used or is that no problem with the magnetic field?
  12. Spit40

    Spit40 VR Rift Flyer

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    I'm all about 3d printing now. No need for gear wheels. 45 degrees of rotation of a 5mm3 magnet with sensor held 1mm over it gives plenty of detail with a leo bodnar. Design a 5mm slot for the magnet and print "external perimeters first" and its a snug fit.

    Don't have a 3d printer? Get an Ender 3 for $150. It will change your life. Its changed mine !!
  13. Christoph

    Christoph New Member

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    Wow, so you're not using gear at all? Just the magnet fixed to the pivot point and that's it? I'm still not sure about all the metal parts so close to the magnetic field. Don't have any experience with hall sensors. But I'll give it a try. Thanks.
    Just googled the Ender3. Looks like a great birthday gift I'll suggest to my wife...;)
  14. Spit40

    Spit40 VR Rift Flyer

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    I got mine for Christmas. My wife likes it. Instead of spending hours in the man cave I spend more time with her on my laptop designing stuff in Fusion 360. Then you set it printing overnight and rush to see the result in the morning like its Christmas. e.g. Spitfire throttle and mixture handles - see where the magnet is.

    I haven't redesigned the collective with halls. It ain't broke...

    IMG_0527.JPG
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