SETUP MENU G - Collective and cyclic pitch mixing (CCPM)

At SETUP MENU point G you have to choose the electronic mixing type for the swashplate servos or select “no mixing“ for switching off the mixing in case your helicopter has a mechanical swashplate mixer. For the electronic mixer you can choose one of the presets for 90°, 120° and 135°/140° swashplates that are suitable for most helicopters on the market (which kind of CCPM your helicopter uses can be read in the manual for your helicopter). When you're using a multiblade rotorhead that requires to adjust the swash phasing electronically this can be done with the StudioX/StudioXm. Apart from that you can set nearly any other kind of swash mixing and swash geometry with StudioX if required.

Today most helicopters use a 120° swashplate, i.e. all ALIGN T-Rex helicopters as well as SAB Goblin, Mikado Logo, MSH Protos and many more. Mechanical mixing was very common on Thunder Tiger Raptor helicopters and Vario scale or trainer machines but is getting rare today. The type 135°/140° (1:1) is the most common type of "140° degrees" swashplates. Often it is also considered as 135° swashplate! There is no uniform designation for this type of swash mixing. The main idea with this type of swashplate is to have an equal servo ratio on the elevator axis, which will remove the collective interaction due to unequal servo movement and in consequence will give a extremely precise control of the heli. If this is the case on your helicopter (elevator and aileron servos are moving the same distance when steering elevator) then choose this type, no matter whether it‘s called 135° or 140° swashplate. You can find this type of swashplate for example on Shape, JR and Hirobo helicopters.

Never set any kind of swash mixing in your transmitter even when electronic mixing is required! Deactivate the swashplate mixing in your transmitter or set it to mechanical mixing (which is often called “normal“, “H1“ or ”1 servo“ mixing), so that each stick function only moves one receiver output channel. The swashplate mixing is all done by MICROBEAST PLUS!

Adjustment on the device

The color and state of the Status-LED shows the currently selected mixing type. To select the desired type tap the rudder stick repeatedly in one direction until the Status-LED lights in the correct color:

Status-LED	Swashplate mixer
purple	mechanical
red flashing	90° (3 or 4 servos)
red	120°
blue flashing	140°
blue	135°/140°(1:1)

Setup with StudioX

Choose the swashplate mixing/swash type of your helicopter by clicking the corresponding button in the software.

To change the swash phasing or set a different type of swash mixing click Customize. Then a screen with advanced setup options will open.

Virtual swash rotation

To change swash phasing for multiblade helicopters adjust the Virtual swash rotation (the phasing is set independent from the actual swash mixing type, so make sure the correct swash type was chosen before!). You can turn the swashplate internally by +- 179 degrees. To find out the exact value that is necessary for your helicopter align one rotorblade in parallel to the tail boom/longitudinal axis of the helicopter. Now when you move the elevator the rotorblade mustn't move at all. If it does, increase/decrease the phasing just until the blade is standing still. It must only react to roll or collective inputs similar as this would be the case with a two bladed rotorhead! The direction (sign) of phasing determines the control direction. If you have tuned the phasing into the wrong direction your control will be inverted, i.e. elevator will move the blades into the wrong direction when aligned 90 degrees to the boom.

Custom swash mixing

You can change the Swash geometry just as you like. You will see that the values you see here are preset by the type you've chosen in the SETUP MENU overview. In example what you may do here is, when having a mechanical mixed helicopter, you can change the servo throw ratio of the aileron and elevator servo (outputs CH1 and CH2) in case these are not making similar cyclic pitch deflection (Note: You can not change the servo throw in the transmitter as with the transmitter you do not directly control the servos with the radio!).

Setup with StudioXm

Choose the swashplate mixing/swash type of your helicopter by clicking the corresponding button in the app.

File:SetupGm.png

With the buttons + and - you can adjust the Virtual swash rotation/swashplate phasing if necessary (i.e. when using a scale helicopter with multiblade rotorhead). You can turn the swashplate internally by +- 179 degrees. To find out the exact value that is necessary for your helicopter align one rotorblade in parallel to the tail boom/longitudinal axis of the helicopter. Now when you move the elevator the rotorblade mustn't move at all. If it does, increase/decrease the phasing just until the blade is standing still. It must only react to roll or collective inputs similar as this would be the case with a two bladed rotorhead! The direction (sign) of phasing determines the control direction. If you have tuned the phasing into the wrong direction your control will be inverted, i.e. elevator will move the blades into the wrong direction when aligned 90 degrees to the boom.