WKM gimbal pitch servo limited travel question

[pilotfuller]

Ladies and Gentlemen,

I have tried and scratched my head on this but can't figure it out. I basically need to see if there is anything I can do to increase the travel of my pitch servo on the gimbal. When driven directly from the receiver it goes about 90 degrees with my TX settings to 150%. This fits my needs. However, when routed through the WKM, it only seems to get around 70 degrees or so. I noticed when I move the slider on my TX it stops responding when I go past about 110% on the monitor. I would understand the lack of user control if the WKM was going to use this extra travel for it's leveling but it doesn't. And of course I have the limits at 1000.

Thanks for any clarification!

Michael

 

[quadcopters]

Increasing the servo travel as been mentioned to DJI by myself as I think it needs to be increased , for example the AV130 on a MK will travel much more than the same gimble on a WKM, This has only been a issue on tilt axis the roll as had sufficient travel .

Geoff

 

[Droider]

Eh Up piulotfuller.. welcome to MRF. I have the same issue and its the only thing that is an irritation for me with the WMK.. Fingers crosses for the new firmware release.

Dave

 

[dolby]

I was going to ask about this. Noticed the pitch travel on my AV130 stopped a little short than normal. I'd love to be able to pitch straight down with my WKM, the gimbal has the travel to do so.

 

[pilotfuller]

Thank you so much for the replies. At least I know it isn't just me not doing something right. The good news is that it should be something as simple as a firmware update and nothing physical. And now we wait!

 

[Vojec]

Hi folks,
Need some advice here for 3-axis cam mount. I use WKM PMU to handle power for all Quad components. I'm not sure if I could use also for manual Pitch servo?
Some guy said:
I have also mounted a separate BEC for powering my servos. I have 3 servos, two for the gimbal and one for the shutter on my camera. Some people is meaning that the built-in BEC on the MC is not powerful enough for powering extra servos, so it's better to be safe then sorry.

How you solve this?

 

[charlie soppelsa]

There is any easy solution if you can do a bit of basic electronics. With either a analogue or digital servo, access the internal pot, usually a 5K value and add a 1k fixed resistor to each of the outer pot connections ( not the slider ). I did this with a Hitec 5925MG ( hitec pots are easy to get to ) and the movement increases to about 140 deg.

 

[DennyR]

What the DJI does with a direct drive servo is to increase the rez. by decreasing the m/s width to give you less travel volume the only way to increase that is to have a remote Pot.

I think Gentles has something that may expand the pulse width!