Forum Discussion

🚨 This forum is archived and read-only. To submit a forum post, please visit our new Developer Forum. 🚨
Tgaud's avatar
Tgaud
Honored Guest
12 years ago

Resistance movment feedback new Idea

Hello,

I was wondering how it would be possible to achieve a feedback on a movement in the air, without being in a static structure, so we can be free to move our arms in every direction, to move our body in every direction.
and still having a feedback and resistance without really touching anything.

So i was wondering what in physic could achieve that.

The answer came from the powerbal technology.
for those who doesn't know, its a ball with a giroscope inside, turning very fast.
so when you grab the bal, if you try to move it, in a way that make the inside rotation to change its axis, you feel a "resistance" ,the ball refuse to move. Its a little "magic" feeling,


The more something is turning fast the more its difficult to change its rotation axis.
Like a wheel of a bike, thats why when we move on a bicycle, we dont fall.

So what if we could achieve something like a glove, where there is some rotational stuff inside preventing us to move it
The force of the resistance could be managed by making some inside part of the glove rotate faster.
the only challenge would be to make every movement resulting in a changement of one of the little gyroscop

I think it should be a lot of study, to understand where to place the little gyroscops, on the glove, how many of them, and how to use them. but thats its technically possible to achieve this.

8 Replies

  • I was thinking that 3 motorized gyroscopes on the back of a glove would be nice for yaw pitch and roll forces however minimizing the weight while still achieving enough force would be hard :/. If you can find a way of achieving it that would be great :).
  • Tgaud's avatar
    Tgaud
    Honored Guest
    Well. it still can be achievable by increasing the rotation speed, or the weight of the gyroscope.
  • One possibility you may want to consider is trying to see what forces you could get out of a quad copter. It is a similar concept but would be primarily thrust based instead. You could achieve stronger forces at a lighter weight. You will need to make sure to have enough shielding on the fan blades though so nothing and no one ends up in the blades.
  • I had an idea that could make this work a while ago:

    Use a 3-axis gimbal with three motorized gyroscopes spinning freely. This should result in a zero rotational resistance since the gimbal allows the gyros to rotate independent of your hand.

    However, once you want to apply a resistance, brake/lock one of the axes on the gimbal. This way you can get instantaneous resistance without having to wait for the gyro to spin up or down. And just as quickly as it locked, it can unlock as well.

    If you're doing an action that involves rotation during translation (like swinging a sword) then this method will FEEL like translational resistance (in free space) because translation and rotation are tied together.
  • Tgaud's avatar
    Tgaud
    Honored Guest
    I dont get how you get resistance from gyroscope, in a translation ?
  • In a sword swing, your arm and the sword are rotating while moving. There are very few movements that you can make where the wrist is rotation locked in absolute space.

    Now, if you were to gyro lock the controller, and all of the arm joints are locked, then rotation locking would also neutralize translation since they are inextricably linked.
  • https://www.youtube.com/watch?v=UZlW1a63KZs&feature=youtube_gdata_player
    For those of you who may not have had fun physics teachers here is how it works. Best example is half way through with bicycle tyre. Keep in mind you would need at least two and maybe even three of these at high rpm on your hand to achieve some of the desired forces. Also it is limited to rotational force so if you want your hand knocked clear back like if you were grabbing a hanging bar in a game mid leap you would need thrust to keep the system wireless. That is why I recommend someone with rc helicopter making experience make a solution. Would be lighter stronger solution.
  • Tgaud's avatar
    Tgaud
    Honored Guest
    Well,
    the best things would be

    A mettalic structure around us, and a changing Direction electromagnet inside the glove, for translation resistance.
    And gyroscopic for rotational resistance.