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Post by tronicgr on Dec 1, 2014 21:57:36 GMT
On another note... I had a case this morning where on a flight with moderate turbulence (actuator Lever going crazy), that the Lever started to "wrap around" the output shaft of the gearbox. This seemed strange to me, and I thought it might be something with the AMC1280 controller. However, it turned out to be a loose nut holding the Position Sensor in place. I tightened it down and things were back to normal. I started thinking how this would impact mechanically (potential mechanical interference) the full 6dof motion platform if one or more of these Position Sensors came lose, as there might be potential for some serious mechanical damage to the motion platform and its systems. The solution to this is ensure that these Position Sensors are mechanically secure, with not oly lock washers, but also LocTite. Hi Mike, In the case that this happens and the arm starts rotating while the other actuators are not moving, it won't break anything. The platform may get strange positioning and that's it. Just make sure to include that in the design to allow freely rotation of the actuator arm in case of such failure. In worst case it will continue rotate a few times before you manually press the kill switch for the VFDs. We talked about it before the AMC1280USB relays on the position sensors to know where the motor is. What I can do is to add an adjustable timer watchdog for each motor, to detect if there is no change in the position sensor while there active motion command. Then perhaps kill the controller signals with a nice message displayed on the LCD to check the sensors... I'll add this to the list of features for the next firmware update. Thanks Thanos |
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Post by stevant on Dec 2, 2014 11:35:07 GMT
Hi Thanos,
I made the changes to my Min Motor speed and my MD_Delay in my BFF.config hoping it would make a difference. It definitely quieted down my motors but as for the flight simulation it was like going through a Hurricane. It was extremely jitterery the entire time, sometimes small violent moves. Not sure why. Racing was great as always but as for flying, not so good. I'm going to bring my P value down to see if that accomplishes anything for flying since a P value of 18 is perfect for racing, but as of now not good for flying. Not sure what else to do to stop these unwanted cues assuming they are unwanted. The other point is that I'm not sure what I did to make it feel worse. I'm going to take a video of the platform during a flight so you can see how it is reacting at the current settings.
Thanks for your help as always!
Steven
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murph
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Post by murph on Dec 2, 2014 13:13:30 GMT
Hi Stevant I'm have no clue about the settings on the platform but i fly gyro-planes could it be turbulence in the flight sim causing this as even on a clam day you can get bounced around a bit. Not sure if that helps but it is all i can talk about  |
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Post by stevant on Dec 2, 2014 14:41:07 GMT
Hey Murph,
I fly model planes and understand completely but some of this jolts are like getting hit with a brick. I'm going to try some changes as I think the software and the hardware need to be tweaked. I can't have the same settings for racing and flying as I'm sure you'll understand that.
I thnk I kind of know what will work. I'll try it tonight. Once I get the jolts worked out, it's an awesome feeling. Especially landing.
I'll keep all posted.......
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murph
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Post by murph on Dec 2, 2014 16:21:16 GMT
Hi Stevant It will be interesting to see what it was and how you fixed it. On another note i explained what plans i have for the garage at the end of our garden the upstairs would be a chill-out room and the bottom floor would be split in two 2/3 would be workout area and the other third would where i put my 6dOF platform i then got her to watch your video it was touch and go but i explained what it was about learning a new skill not just a new toy i think what may have sold it was how much it would cost to buy a pre-built one. So my journey has truly started! now i just need to save some money  |
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Post by stevant on Dec 2, 2014 18:54:19 GMT
Good job........It's a lot of fun. Have her go for a drive and she'll be hooked!!!
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Post by stevant on Dec 2, 2014 22:04:18 GMT
I'm thinking by raising the Min. Speed the motors are not going to operate until the Min. Speed setting is attained and since it is raised it will kick in harder as it will not allow lower smaller movements due to the higher setting. When it finally does operate its already at a higher speed causing harder shakes and jitters. I hope I am explaining that correctly. If I bring down the Min Speed it will allow the slower movements, even though more than I might want but they will be smoother.
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Post by stevant on Dec 3, 2014 11:28:18 GMT
Hi all, I made some changes again last night. I'm going to shoot a video of me flying again to show all interested. Here is what I dd. I brought my Oversample back to 4 from 8. I brought my Min Speed down to 1 from 10. I also brought my P value down to 10 from 18. 18 is perfect for racing. (not flying). Let me just say, what a difference. The violent jerky jitters are now gone. The flight is much smoother from take off to landing. I'm still experiencing some of the small jitters but they are not as bad as the first time. I'm sure the lower P value and Min Speed settings are helping out there. I'm going to focus my attention on the BFF software. Might need some tweaking in the flight settings to hopefully remove some of the unwanted jitters/ turbulence. Overall a much better flying experience. My knuckles were not white this time after my landing, that's a good sign!!. At one point I brought my P value down to 5 when flying a lumbering 747 and the platform was still in perfect sync with the software cues. I'll show that in the video. Until tonight!! Thanks, Steven |
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murph
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Post by murph on Dec 3, 2014 11:31:20 GMT
Now you say it like that i am beginning to understand i was under the impression that the motors just operated from the start at lowest speed and ramped up i did not realize that you could set the start speed can you also set the Max speed?
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Post by stevant on Dec 3, 2014 16:09:44 GMT
Yes you can. My max speed on my motors is 50%. That speed is more than enough to work my platform.
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murph
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Post by murph on Dec 3, 2014 17:50:12 GMT
You ninja'd me on the last post m8 ;P so would the max setting be like a torque setting or speed reaction setting and sorry 1 more what is a p value i seen you all talk about it and would like to understand . I look forward to your flight video. |
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Post by stevant on Dec 7, 2014 5:04:36 GMT
Hi all,
Here is a video of me on x-sim driving Dirt3. The movements need to be greater. I could not find the proper plugin for it. First time using x-sim as I was using BFF for my other games. Great feeling when you come up over a hill and you hit a small jump.....gets you in the belly!!!
Steven
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Post by riton39 on Dec 7, 2014 11:46:19 GMT
there are strange movements in yaw , no ? you must use the plugin Live for Speed for Dirt. there seems to be no effect for bumps I do not know if it can be useful for you, but for optimum adjustment effects, I advise you to put the ramp settings to the lowest. set the min motot speed to 0 on AMC For example, on my video I'm +/- 4 000000 for force vertical . I made several video on my YouTube channel, with the ramp has different settings to show the differences. the more you are fast, the best is the result. www.youtube.com/channel/UCyGsvEW6uOyxJdvJIOVIsMg |
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Post by stevant on Dec 7, 2014 13:35:20 GMT
Hi Riton,
I could not seem to find the correct plugin for Dirt3 for 6DOF AC actuators. I agree, the yaw is not right but it does it all the time at those points in the track. I tried to load up other profiles but the Math Setup does not seem to load with it. I've had to add my own Math inputs instead which I agree do not seem correct.
I have the Steam version of Dirt3 so I am hoping the plugin for Live for Speed works. It says it is for Full Version Only. Mine is full but through Steam. I can't get my Assetto Corso to work through Stream. Maybe that is my problem.
Im also not very good at X-sim as I have been using BFF for my racing and flying. I want to understand it more. You refer to ramp settings which I assume is in X-sim but I don't know how or where to adjust. My Min Motor speed is at 1 at the moment on my AMC.
Any ideas??
Thanks,
Steve
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Post by riton39 on Dec 7, 2014 15:05:08 GMT
I try to participate, but my English is not very good ...
I speak of the ramp in the drive. acceleration and deceleration.
you can have strange move if the simulator is too slow.
to an acceleration ramp will bring the delay.
if you delay you will ratter positions and the simulator can have this strangely.
I do not know if that's it, but I think you must reduce the acceleration ramp of your simulator.
Before this can you tell me how much is your set deceleration ramp settings?
0.1 /0.2/0.3/0.5 ??
to see more clearly, with XSIM, I advise you to adjust effect effect.
eg "Indeed 26" for bumps "heave."
testing an adjustment of +/- 4 million
it is better to put the motor speed minimum at 0.
if you need I make you some videos with a single axis.
it is easier to analyze the behavior
you can see the behavior with a single setting, and one effect.
it is well to say one thing:
the goal is to follow a target.
this target is moving continuously.
it is the position in the games.
if the simulator is slow, misses the target and will move it to the one that is closer.
it is not always very good compared to what happens in games ...
it is better to adjust the simulator and rapid effect of increasing the range to reduce violence simulator.
reduce the reaction time simulator with the ramp is harmful to the operation of the simulator is what I highlighted in my tests.
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