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Old May 07, 2012, 05:02 AM
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Joined May 2012
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Graupner mx20 pitchcurve problem

Hello everyone,

Since a few weeks I own an graupner mx20 radio with GR-12. I want it to setup for a protos 500 with beastx, but I can't get the servo's to work properly. They don't move when I power everything up.

I just created a new model, some phases and throttle curves. The pitch curve is just liniar and swash type is 1 servo 90*. What do I do wrong?

When I first power up the heli and after that my Tx the servo's do move, but pitch still doesn't which is kinda strange.

I can't find anything for this transmitter, and graupner doesn't answers any of my questions. Can someone advise me on this one?

Regards,
Thijmen
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Old May 07, 2012, 04:17 PM
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Pitch is output on Channel 1, do you see channel 1 moving on the servo display screen?
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Old May 09, 2012, 02:18 PM
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That was it. Speedcontroller cable and pitch needed to be switched.

I still get the problem that phoenix is acting strange when the graupner is connected. Pitch stick stays at full throttle, swashplate servo's are moving properly. Anyone?
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Old May 09, 2012, 02:29 PM
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Make sure that you have 1-servo swash type selected. Also, on the flight sim, make sure that for the controller you have throttle on channel 6 and collective on channel 1.
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Old May 10, 2012, 01:26 PM
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That was allmost about it. I needed to assign both throttle and pitch to channel 1. Thanks for your input!!
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