Burgerman wrote:I am going to send you an OVERLAY file.
First save your settings file somewhere safe on your desktop or wherever. In case you want to go back to it Trust me you will not.
This file will ONLY change your drive profiles. And a couple of other parameters. Look inside the R-Net software. And after you install it you will only need this one single profile. The one that says all speeds. Unless you are have the joystick in wrong position and are doing what the previous poster says is OK. Its not! This requires proper joystick technique.
Now this will not change motor compensation, seating, or anything else other than a few drive settings to make it respond properly. Dont be tempted to change anything. Its extremely limited, and will seem like a strange sort of file. Open it in the R-Net program, any version, and then tell it to send to your chair.
It removes all the mushy, deleyed action impossible to control "accelerations" in the turning etc.
Its a balanced linear set of changes that just result in a chair that works set to:
- speed 1 safe for carers and others to move about or you indooes very slowly. But with accurate linear response.
- speed 2 is good indoors, and probably what you will use.
- as above.
- with speed 4 you will probably skip this, as outdoors speed 5 is better.
Test speed 1 and 2 indoors.
Test speeds above this outdoors.
Then please advise.
If its not accurate and easy to cotrol then motor compensation may be wrong. Highly unlikely if its stock factory settings.
Q. What motors doEs it have, 2 or 4 pole. 4 or 6 or 8 mph? And what is motor load compensation actually set to?
Should be...
4 pole, 6mph 45mOhms.
4 pole, 8mph 30 to 35 mOhms. I have seen both from sunrise.
2 pole are generally set to 65 ot 70.
Set too hih its very jumpy. Set too low its gutless, inadequate torque.
NOTE!!! this only works if you DISABLE the GYRO which is the cause of much of the woes. These settings do not work with the gyro. Make sure it says DISABLED!
Burgerman wrote:I am looking at it. Its got 40mOhm compensation. Thats OK. It may be better at 35. Either way thats not the problem.
No gyro enabled.
So that just leaves the HOPELESS stock settings.
In about 40 mins after my carer leaves I will modify your profile and re-upload it.
Meanwhile, did you manage to open that first file yet???
That SHOULD fix all your problems.
If not then all I can say is that your hand technique, and joystick position does not allow proper control.
Burgerman wrote:I am going to send you an OVERLAY file.
First save your settings file somewhere safe on your desktop or wherever. In case you want to go back to it Trust me you will not.
This file will ONLY change your drive profiles. And a couple of other parameters. Look inside the R-Net software. And after you install it you will only need this one single profile. The one that says all speeds. Unless you are have the joystick in wrong position and are doing what the previous poster says is OK. Its not! This requires proper joystick technique.
Now this will not change motor compensation, seating, or anything else other than a few drive settings to make it respond properly. Dont be tempted to change anything. Its extremely limited, and will seem like a strange sort of file. Open it in the R-Net program, any version, and then tell it to send to your chair.
It removes all the mushy, deleyed action impossible to control "accelerations" in the turning etc.
Its a balanced linear set of changes that just result in a chair that works set to:
- speed 1 safe for carers and others to move about or you indooes very slowly. But with accurate linear response.
- speed 2 is good indoors, and probably what you will use.
- as above.
- with speed 4 you will probably skip this, as outdoors speed 5 is better.
Test speed 1 and 2 indoors.
Test speeds above this outdoors.
Then please advise.
If its not accurate and easy to cotrol then motor compensation may be wrong. Highly unlikely if its stock factory settings.
Q. What motors doEs it have, 2 or 4 pole. 4 or 6 or 8 mph? And what is motor load compensation actually set to?
Should be...
4 pole, 6mph 45mOhms.
4 pole, 8mph 30 to 35 mOhms. I have seen both from sunrise.
2 pole are generally set to 65 ot 70.
Set too hih its very jumpy. Set too low its gutless, inadequate torque.
NOTE!!! this only works if you DISABLE the GYRO which is the cause of much of the woes. These settings do not work with the gyro. Make sure it says DISABLED!
q700m wrote:I have infantile cerebral palsy, so I don't have a steady hand.
the joystick and wheelchair must be as little sensitive as possible otherwise the wheelchair jerks and goes left and right
can anything be done?
I am attaching my file
Burgerman wrote:What does snappy mean?
Your settings file is undrivable.
Set all the forward and reverse accelerations to a low figure. So that you still have some sensible forward or reverse speeds but acceleration is low.
Set all the TURNING acceleration the opposite. Set these to maximum, 100. That means it will be fully proportional, but too fast to turn for you. So then set all the turn speeds to a low amount that you can cope with.
And reduce motor load compensation by 5 and not more from 40 to 35mOhm.
And then after all this has been tested until you can control it, then add tremor damping in stages of 10 until you can feel its being smoother (but slower to react.
After this then theres nothing else you can do. Thats as controllable as it gets. You MUST have the joystick positioned properly. And yu MUST have your hand sat on the base of the joystick to have a reference position or you are just fighting a losing battle. And will never have proper control. And maybe a longer joystick will help. Also you should have ordered 4 or 6 mh as these have better torque and control and are easier to drive with limited hand capability.
Burgerman wrote:Yes but you still have not done as I suggested. That will not work.
And the other things, inc motor compensation, and the physical changes to joystick position, and to your hand position are all a part. Do only part of this, or dont change the settings as I suggested, and it will not work.
Set turn acceleration to 100
set turn deceleration to 100
set minimum turn acceleration to 100
set minimum turn deceleration to 100.
Now set the minimum and maximum turn speed to whatever you can manage. Super slow to start with.
But NON of this will work if you dont change the motor compensation to 35mOhm, and set tremor damping to say 100 to start with. REDUCE this if it causes too much delay. It averages your hand shakes over time to smooth the input.
And MOVE the joystick to a batter higher more inboard position so you can cup the joystick with your have. That matters or you cannot control anything. Because the chair moves, or accelerates, and josles your hand and so joystick moves. And the joystick moving moves the chair! Its a feedback loop. You must break that loop.
You must do ALL of these things together. Or you are wasting your time. On every profile.
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