CCPM - Swash mix settings on TX

[dazzla777]

Hi Guys,

This might be more aplicable to those dx7 users with the 200 - as this is what i have trying to do this set up corectly, but just wanted to ask!!!

What swash mix settings are you guys using for your Aileron, Elevator and Pitch. I think I have the head set properly (swash 7mm at mid stick on 0 pitch and all servos at 90).

I saw the Finless video(s) for CCPM set up and noticed he mentioned about having the settings for the above at around 50%-60%. When I set my 200 up this way I noticed 100% stick inputs for pitch in either direction to achieve +- 12 degree pitch wasn't happening - i was getting more like 8+- degrees.

I changed the setting for pitch mix to 75% and it now gives much more pitch range (and swash moves up and down its full range), Am I doing this right have you guys got similar settings to achieve full pitch range ?

I noted on the finless video however, that he mentions its important not to give to much range as some extra is needed for cyclic inputs on top of pitch for situations when your at full pitch (positive or negative), and need to throw in some cyclic movements on top which as a consequence would mean the blades need a bit more pitch in one way or another (e.g. at full pitch +12 dgrees then some elevator cyclic would result in blades at certain positions haveing around 15-16 degrees pitch - hope that makes sense?

Thanks

Darren

[mjr_larkin]

AIL: 33%
ELE: 33%
PIT: 50%

Pretty sure he means don't over do the pitch cause if the swash is flush against the base at full negative, it will bind when you try to apply any cyclic. I don't think i've seen any setups where all arms are 90 degrees at zero pitch. Did you have to shorten one of the link rods to get that?

[dazzla777]

Hi,

Yeah I had to shorten the pitch servo rod - actually I found that the link rod that came on the heli out of the box was to long (even when fully shortened i couldnt get 90), I ordered some spares and one of the rods in the pack had a shorter linkage rod (I got this from another thread on here somewhere so i think others have had similar problems)!!.

I was able to achieve 90 on the servi arm using the shorter rod at zero pitch with the swash 7mm from the frame.

if I set my pitch any less than 70% in the swash mix I dont get any more than aprox 9+- degrees in either direction, not sure whats wrong here, as soon as I put it back up to 70% I get a better range movement for pitch (around 11 +- degrees). tested applying cyclic on full negative/positive I cant see it binding anywhere so far, is it posisble i have the head set up mechanically incorrect (by the way im using hitec hs 45's on 100% ATV in both directions)!

When you have full positive does your swash go up just below the 2 rods that come down fromthe main rotor yoke thing, and when on full negative pitch does your swash sit just above the frame ?

Thanks

Darren