Finally, the numbers in the swash mix menu do NOTHING to center the swashplate in its travel range for that zero degree setting.
You do not want to use up all of your VR(A) setting just to get to zero pitch.
Endpoints no longer adjust the travel of the FUNCTION, they only adjust the travel of an individual servo.
Fix THAT using the reverse function for ONE Page 2627 of the TWO servos.
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IF all three move UP (or down), you reverse the elevator channel.
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The flybar is now over and parallel to the tail boom, and sticking out in front, the MR blades are perpendicular to the sides of the heli.
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The new scale will divide that 15 degrees across the total stick movement, spreading it out evenly.
If you are real close, then you can use the VR(A) dial to tweak it in, but only if it is real close.
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If the swash plate level was perfect throughout the travel, then all three SWASH AFR settings should be the same percentage.
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For instance, for aileron control, two servos need to move in opposite directions, one up, one down.
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When you have accomplished THAT, you then adjust the pitch links up on the Page 2728 head generally to get all mixing arms level, and ZERO degrees pitch in BOTH blades.
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So with that experiment, you can now see that the Swashplate AFR settings control the mixing controller for all the collective pitch servos, not just one.
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As stated before, the TREX clones are capable of setting a pitch level to over 14 degrees.
Let the Loctite dry for a minimum of two hours before firing up the motor.
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Setting the Blade Pitch In the next step we are going to set the initial blade pitch.
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Fig 13 Test for zero pitch at multiple locations as you rotate the blade a full 360 degrees.
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Now that the reference blade is at zero pitch, you can move the left stick all the way to the top.
End Points in a moment, but lets consider what the AFR settings do.
Elevator requires that two servos move up (or down) in unison, while the third moves opposite (generally the elevator servo).
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Go full LEFT (or right) and measure the amount of pitch from ZERO degrees that the blade moves.
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When the mixing arm mounting screw and the long link screw line up with the flybar control rod (both mixing arms) then we can move on to the blade grip link adjustments.
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Generally, if you get the elevator and aileron channels moving correctly with respect to each other, the collective takes care of itself.
The individual control adjustments take on new meaning, as you have to deal with the electronic mixing that is occurring in the radio.
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Yes it will fly, but you will notice the helicopter will bank better in one direction than the other, or go backwards faster than forward, or bank to one side as you ask for forward movement.
Cut switch to On, and then you may safely connect power to the helicopter.
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If you find a screw that is just too tight, don't force it.
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This is accomplished by making sure your servo arms are where they are supposed to be AT NEUTRAL (generally horizontal, parallel to the ground unless your pushrods have some weird geometry).
Basically, it tells the controller that instead of 30 degrees of motion for the servo at full stick, it should only move the servo motor 15 degrees at full stick.
Turn the head 90 degrees, keeping the collective at the ZERO degrees pitch setting.
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If not, then adjust the long links equal turns until the mixing arms are level.
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The channel reversing feature in your TX ONLY allows you to get the three servos moving correctly, with respect to each other, and has nothing to do with them moving correctly with respect to the function they are controlling.
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If not, this is an area you can compensate a little by allowing slightly more travel percentage for the lowest servo during the leveling exercise.
First, the channel reversing function in your TX ONLY affects one of the three servos, not the action of all three.
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But if your servo reversing switches are in the wrong position, those two servos may both move up, or both move down.
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SIZE of the pitch number, and how much aileron and elevator CYCLIC pitch you get by adjusting the SIZE of the AILE and ELEV numbers in the swash mix menu.
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Another way is to attach the blade normally and use a pitch gauge to adjust the link to get zero pitch on both blades.
This is the one we are going to get to zero pitch with the servo horns at 90 degrees.
Always turn on the radio first and wait for at least 5 seconds.
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But, since you have a heli whose swashplate is setup for 120 degree CCPM control, it requires that three servos work in unison to move the swashplate correctly.
The electronic mixing requires a few things to work differently in your transmitter.
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If you needed to REVERSE the servo movement for one or all three of these channels, you would do the reversing in the REVERSE menu of your TX, for the channel that needed to be switched.
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The lower fly bar control level link is used for fine adjustments.
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We will use the SWASH AFR setting to limit the upper and lower pitch.
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Fig 12 Fig 12a If they are not lined up, then you need to adjust the top blade grip to fly bar control lever link until you reach to zero pitch or as close as possible.
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Watch the graph, and notice that it not only effects channel 1 but also channel 6 by.
Page 2526 rod is parallel to the main shaft, or you can place a blade sideways in the grip (thick end) and adjust the link until the blade is level.
Now that you're head is setup, you should go back through the head, and use Loctite on all metal to metal screws.
If you keep a constant zero degrees throughout the full rotation, you can be certain that the swashplate is indeed level.
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You can set the rest of the pushrods to level the various mixing arms, and to set ZERO degrees pitch in both blades.
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This time, move the ELEVATOR stick to its full extreme, measuring the amount of pitch the MR blades get as you do.
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ZERO degree setting, you can measure CYCLIC PITCH values for the AILERON function.
In doing so, as long as the collective stick is anywhere between points 2 and 4, the servos will be centered (neutral) and you can make your pushrods to level the swash, and center it in its overall travel range.
One end of the mixing arm dips down and is used for the Blade Grip links.
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When checking level, use the center screw, and the long link screw.
You will hear pilots tell you to adjust the End points to limit the amount of pitch.
On punch outs, you will see the helicopter do something other than go straight up.
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It is preferred to keep the VAR(A) dial close to 9 o'clock or mid way in its potential travel.
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Channel 1effects collective right aileron, Channel 2 effects collective Elevator, and Channel 6 effects left aileron (also called pitch).
It is typically used to limit the amount of travel the swashplate moves, and therefore control the maximum amount of pitch.
You do not want the pitch to be more than 12 degrees unless you are a serious 3D pilot in which case you have a better radio and are not wasting your time with this set of instructions.
Be aware, that if you do that, you are also changing the scale for each servo with no collective intelligence to correct for rates between the servos.