v977 model - small gap throttle down

Hi, I don't know how to explain so better watch the video.



I have the Devo8s with the very latest firmware loaded (deviation-devo8-v4.0.1-65084ff) and I am using the model attached just if someone wants to have a look.
You can see that at the very bottom of the throttle stick there is a small gap without response, no movement of the blades. If I go up giving positive pitch, there is response all the way.

Does anyone know how to get rid of it? I notice that I have more positive degrees than negative due to this issue.
Thanks.

Fernando wrote: Hi, I don't know how to explain so better watch the video.

I have the Devo8s with the very latest firmware loaded (deviation-devo8-v4.0.1-65084ff) and I am using the model attached just if someone wants to have a look.
You can see that at the very bottom of the throttle stick there is a small gap without response, no movement of the blades. If I go up giving positive pitch, there is response all the way.

Does anyone know how to get rid of it? I notice that I have more positive degrees than negative due to this issue.
Thanks.

Did you calibrate your DEVO8S after upgrading FW?

I had the same issue with another WLToys, I think they just don't have the resolution our devo's do...

The fix is very simple, go to the throttle channel (or whatever channel it is that controls the pitch, I know the V977 is a strange one) and adjust the bottom point up, for me it started moving at -88 so I set it there, just try moving up one or two points at a time and test. After that you'll probably want to adjust the rest of the points so it remains as straight of a line as possible. Do this in the advanced mixer but I have no idea where to tell you on the color devo's.

Edit: Does it go full positive? I never considered this but maybe we're loosing a bit off the top end cause of this? Can you move the top point of the curve to be >100? Do you have a WLToys transmitter?

I noticed this as well after awhile of flying, there's also a dead zone at the top of the throttle stick but not as much as throttle down.

To compensate for this, i'm using 1-to-1 graph for the throttle, and I changed the scale to 85 then added offset 20. This will shift the whole pitch curve 20 points upwards and will give output signal from -65 to 105.

Just configured it earlier, will test out tomorrow. Attached is my model.ini

Nightstalker1993 wrote: I noticed this as well after awhile of flying, there's also a dead zone at the top of the throttle stick but not as much as throttle down.

To compensate for this, i'm using 1-to-1 graph for the throttle, and I changed the scale to 85 then added offset 20. This will shift the whole pitch curve 20 points upwards and will give output signal from -65 to 105.

Just configured it earlier, will test out tomorrow. Attached is my model.ini

Did it work?

Yes it did. no more dead zone at the bottom

Great! I am going to test it today. Thanks!

No problem, do report back if it worked for you. My V977 had been grounded for the past 3 weeks, broke a blade grip off and waiting for parts

Worked! but I get a perfect travel adjustment with a value of 80 in scale, same offset. I will try to test it outside today but now the question is whether setting this to 80 or 85 will affect to the throttle itself or not,...I don't think so....

Yes, helicopter are lucky because usually they spend more time resting than working . good luck!

EDIT: Now, each time I turn on my Devo I get a "safety warning". That's why my throttle stick is not on -100%. I don't know how to get rid of it in the menu so I follow this instructions and now the warning has gone, but you don't have any warning when you turn on the transmitter with the throttle stick on any position. Well, is not a big problem but I expected to get a warning when the stick were on other position but the lower one.