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Other › Servo centering for CCPM setups. heliworkz frame.
11-30-2005 05:25 AM  12 years agoPost 1
rcmarty

rrVeteran

Penticton , B.C. CANADA

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I'm building a HV rex.

I bought the heliworks CF frame and the hs56 servo's it designed for.
Jr 9303 radio.

How are you cetering the servo's without using alot of subtrim ?
Is'nt there alot of interaction associated with the use of subtrim , especially with a CCPm setup ? I have the servo's in the right channels and subtrimmed to level (using pitch curve for 50% readout- linear curve). Ended up with pitch at -60 and aileron at -60. Subtrims ended up being 20 on one 20 on another and 24 on the third. Resolution is set to 4 per step i believe (jr default).

Is there another way to get the horns to be centered without the use of subtrim ? Or wil i need to get a round arm and drill my hole where i want it and then trim to shape ?

There has also been alot of goo digital servo's out on the market these days. Has there been many people using the digitals for the swash ? Are they programmable (like hitec digital unit) for speed and center postion ? Or is servo gear replacement an issue ?

Thanks for the input ,

Martin

What goes up will come down.... one way or another !

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12-02-2005 04:40 AM  12 years agoPost 2
rcmarty

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Penticton , B.C. CANADA

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I hope i'm not the only one with servo horns not where i want them

How are you getting them to be level ? Subtrim ?

Thanks , martin

What goes up will come down.... one way or another !

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12-02-2005 09:22 AM  12 years agoPost 3
stpeteheli

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St. Petersburg, FL

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First try to turn the horn 180 degrees. Next, try all combinations of all horns you have on different servos. You should find a good combo that works on most. I still have one that is off using the HS55's straight horns, not the cross horns.

Good luck,
Niles

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