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e-Mikado Logo 400 500 600 > CCPM Question.

nedyah
Senior Heliman
Location: South Australia

Hi,

When using CCPM 120 degree mixing, do all three mixings need to be equal percentages or can I have more pitch like 85% and 60% for Aileron and Elevator?

Will this cause problems or binding on the Logo 10?

Cheers, Hayden.

02-04-2004 Over year old.

SteveH
rrProfessor
Location: Texas

They can be different, just start out with all endpoint adjustments on those channels at 100%, but you can adjust the AFRs to get the response you want and the pitch range the way you want.

SteveH
Magnum Fuel
AMA76186

02-04-2004 Over year old.

JKos
Elite Veteran
Location: City of California in the state of Maryland

Hayden,
Yes, the numbers can be different. However, the aileron and elevator numbers will typically be the same or very close in order to keep those to two reponses equal. The pitch/collective number can be quite different if need be. The defualt numbers of the radio are probably a good place to start.

For example, on the MS Composit Hornet CP and Hornet II, it takes very little up and down motion of the swash for full range collective so the collective number on the swash mix is typcially pretty low while the aileron and cyclic are more normal or even higher.

For the Logo 10, if it mechanically setup correct, then the mix percentages for aileron and elevator should be the same. Again, the collective mix percentage can be tweaked to help get the collective range you want.

Hope that helps,
John

02-04-2004 Over year old.

nedyah
Senior Heliman
Location: South Australia

Thanks Guys.

That puts my mind as ease. I suspected that would be the case, as that is pretty much how I have it setup now and it seem to be working OK. But I just wanted to make sure I wasn't putting unnecessary pressure on the servo's or swashplate etc. As it looked like at full down collective and then when you give aileron the controls may have been fighting each other. The default radio setting of 70% was no where near enough to get the pitch range I needed and 70% on the cyclic was too sensitive and I think causing the swashplate to bind (over driving it).

Cheers, Hayden.

02-05-2004 Over year old.

Saint728
Elite Veteran
Location: Sydney Australia Sponsored by: Quick UK

Hello Hayden, my CCPM settings are as follows. I copied these setting from a tip from LOGOmania aka. logoheli Here is the link http://www.logoheli.com/

AILE -53%
ELEV 55%
PIT. 81%
This is the settings to get the most pitch range with a JR 8103/3810, PCM9X, 10X, etc.

Quote

The solution to getting more pitch (collective) without increasing elevator/aileron (cyclic) input to the mechanics was easy, once I understood what the CCPM mixing percentage settings were for. I thought they should remain more or less equal for some silly reason. Increasing the pitch % from 60% (as the aile & elev are also set) to 80% gave me lots more pitch range without increasing the aileron and elevator response and causing binding of the mechanics. As you can see from the photo of the swash mix menu screen, I have also reduced the percentages for aileron and elevator to keep the swashplate from binding on the mainshaft.

Take Care,
Cheers, Patrick

MA Fury Extreme,YS 91,MPII,V-Blades,601
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02-05-2004 Over year old.

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nedyah
Senior Heliman
Location: South Australia

Thanks Patrick,

I changed the CCPM mixing to this:

Aileron: - 55%
Elevator: + 55%
Pitch: + 95%

I now have about -11 to +11 degree's pitch range on the Logo 10. I will give it a try on the Weekend and see how it feels. I may need to change the Cyclic again.

Cheers, Hayden.

02-05-2004 Over year old.

JKos
Elite Veteran
Location: City of California in the state of Maryland

Hayden,
Just guessing, but based on how high you had to put the collective mix percentage, you must have short arms on your servos. How many mm out are your ball links?

- John

02-05-2004 Over year old.

nedyah
Senior Heliman
Location: South Australia

They are 20mm.

Cheers, Hayden.

02-06-2004 Over year old.

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e-Mikado Logo 400 500 600 > CCPM Question.

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