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| Setting for 3 servo Robbe rocking mixer - 4 blade head https://www.spirit-system.com/phpBB3/viewtopic.php?f=20&t=5636 |
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| Author: | AdrianR [ Sat 15. Apr 2023 14:31:56 ] |
| Post subject: | Setting for 3 servo Robbe rocking mixer - 4 blade head |
Hi, Could someone please point me in the right direction for the setup of a Robbe / Schluter rocking servo setup? One servo is for the collective, one for the roll, and one for the elevator. The mix is done mechanically. The model was set up with a Futaba CGY750 but the OLED display has failed so I can not read the settings. I will be using a GTR with a Jeti TX. I have tried all the different swashplate types but none seems to suit this type of setup. ------------------------------- So after changing the swash plate to 90deg CCPM and setting the phasing to -45 deg (CCW rotation) the head all seems to move in the correct direction (90deg out of phase for a 4-blade head). Now to continue the setup Please chime in if you have any further information on these setups. Thanks |
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| Author: | igloo [ Sun 11. Aug 2024 19:02:44 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
This question has been raised by a relative of mine. Did you succeed in your settings ? For the SPIRIT support team, any suggestion for such a case will be much appreciated. |
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| Author: | igloo [ Thu 29. Aug 2024 13:24:08 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
Nobody seems to know, even ZeXx86  Maybe there is no solution or the question is rather difficult but it is the first time since 9 years I own Spirits (with a great satisfaction) that I see a technical question direct related to the product unanswered. Thanks anyway 
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| Author: | ZeXx86 [ Fri 30. Aug 2024 14:59:44 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
Hello, answer is in the original post. |
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| Author: | AndrewJohnHawes [ Sun 01. Sep 2024 22:23:41 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
I created a solution with a Bavarian Demon unit some years ago with a 1 servo 1 function set-up. I will see whether I still have the file, but was a long time ago! The pilot was a tool maker and subsequently changed the control to a direct control with good effect. However, did work fine in the original form. I will see if I can find the original tonight. Although the mechanical set-up looks very different, the ultimate behaviour is no different from any other current direct control arrangement. You still have to achieve the standard cyclic and collective actions! Just look at what input achieves those actions and go from there. |
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| Author: | igloo [ Sat 07. Sep 2024 13:21:24 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
Many thanks to all of you. I will report these precious advices. |
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| Author: | AndrewJohnHawes [ Tue 17. Sep 2024 1:15:37 ] |
| Post subject: | Re: Setting for 3 servo Robbe rocking mixer - 4 blade head |
I have tried to find that file and can't currently see it. As I remember, I took no particular different view of the servo functions, just review what each servo in this format actually tries to achieve - aileron, elevator, collective. Then just apply the normal programming logic. This did work fine, although, watch out for slop, etc. Andy |
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