3DOF power simulator

[thecure]

the potentiometer labeled adc, serves for ?..tks horrible English

[thecure]

where do you buy the circuit (encoder AS5145) ...there are other components ?? http://www.youtube.com/watch?v=DQdHslX-5Lo

[thecure]

the AS5145 encoder can be good for a spin at 3000 rpm? in practice to us serves not as meter degrees, but in continuous rotation...look the image

Example

[tronicgr]

You cannot use these magnetic encoders for quadrature encoding without reprogramming them (via SPI commands). They come ready for analog/PWM output signal only.

Also you cannot use quadrature encoders on AMC1.6 board yet as I haven't had the time for such upgrade yet. You could use a 10 turns potentiometer or a 25 turns to place it like on your schematic.

Also for the YAW rotation you could leave a potentiometer connected in middle position and let the motor rotate freely around accelerating to each direction. You will need a 0-ring sliding power adapter for that though.

Thanos

[thecure]

You cannot use these magnetic encoders for quadrature encoding without reprogramming them (via SPI commands). They come ready for analog/PWM output signal only.

Also you cannot use quadrature encoders on AMC1.6 board yet as I haven't had the time for such upgrade yet. You could use a 10 turns potentiometer or a 25 turns to place it like on your schematic.

Also for the YAW rotation you could leave a potentiometer connected in middle position and let the motor rotate freely around accelerating to each direction. You will need a 0-ring sliding power adapter for that though.

Thanos

..in yellow...i don't understand ,you can explain it to me with a design ? tks another question look the image,where there are arrows, I can put the two wires to an electric brake,or a magnetic brake

[tronicgr]

No, these are the controls that provide the direction signals for the motor (AC drive or H-bridge, doesn't matter) and the PWM signal provides the speed of the motor.

What I meant was that you can still connect a potentiometer and set it in middle position (value 127) BUT NOT connect it on the axle of the motor. This way you can still get correct direction and speed output but NO Position reference. This way the motor will keep rotating to one direction or the other simulating rotation (YAW) accelerations. Neat trick, huh??

Now, in order to pass power signals or data signals for a free rotation system like that you need a slip ring flange like this one http://www.adafruit.com/products/736. You can find another like that, for lot more current (Ampere) if you look around.

Thanos

[speedy]

What I meant was that you can still connect a potentiometer and set it in middle position (value 127) BUT NOT connect it on the axle of the motor. This way you can still get correct direction and speed output but NO Position reference. This way the motor will keep rotating to one direction or the other simulating rotation (YAW) accelerations. Neat trick, huh??

I guess that he still needs a position reference by connecting the pot axle to the fixed base and the pot body to the rotating frame [ regardless how the motor rotates the frame ]that would give the feedback required ...So if the player slightly pass a small road curve or tumbling from lift to right passing cars on a straight road the frame will copy his movements from the game with all it's slow and fast rates ... it's even recommended to add a slow flush command to center back the moving frame to the fixed base front direction, do that in the math section of x-sim ,so the frame will turn fast or slow left or right but will center back slowly after there is no change in YAW value to the front center waiting to the next player turn .
Benefits:
-maximizing the g-force produced to the player by moving back the frame also to flush the curve from his memory to keep him awake not dizzy rotating around himself ...
-keeping the frame almost in front direction will keep the audience with camera's updated with the player driving so there will be cheering and challenging ....
-shy girls with short skirts would love this option . .keeping every one looking to screens only .

[basthard]

Hello guys after a long work week,
we were able to prepare a scheme / project
for our all electrical actuators.
This is a draft of the measures to begin to understand the dimensions
and the force required to displacement ...
We found some interesting values ​​from the old site in a post ...
has been very useful to begin with ...
We have come to go-no-go!!
Now we would like to know what you think and if you have suggestions,
because we are ready to start welding and spend a lot of money ehehehe

[tronicgr]

That's a good design, but why not connecting the belt of the motor on the ball-bearing actuator rod? It will make your actuator more compact in size and in exchange you can make the actuator rod bigger!

Like in the first example you gave above!!



Thanos

[basthard]

because both the size of the actuator
 would not change much.
both in our project will not be possible to have an excursion
greater than 400-500 mm, after all, is a simulator
race car ...