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=======Simchair MKIV collective single throttle lever body for integrated heads=======

This manual describes the process of building a single throttle lever body for compact integrated heads. These heads are not interchangeable with others, but they are lighter, more compact, and allow for better portability. Such levers do not require counterweights and thus they can also be (theoretically) used with motion platforms.

Please note, that some of the pictures show MKIII collective base, you can ignore that.

====Components====

  * 1 x 200x10x10mm aluminum square pipe
  * 2 x M3x30mm screws and nuts
  * 1 x M4x80 bolt


==== Repository path ====

simchair4_models\printable components\peripherals\helicopter\collective lever\b_lever bodies\single throttle collective for integrated heads

==== Assembly highlights ====

none

==== Assembly Guide ====

1. Assemble the collective base MKIV using a 200mm piece of 10x10mm aluminum piping.

{{http://hc625ma.org/wp-content/uploads/2019/07/IMG_20190705_112425.jpg?300}}

2. Install the decorative cover onto the 10mm tubing.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541397255194625171969524346276.jpg?300}}

3. Press-fit an M4 nut into the socket in the throttle frame part 1.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541398787665677670460669330765.jpg?300}}

4. Insert a potentiometer into throttle frame p1.

5. Put the throttle frame part 1 onto the 10mm tubing. Drill holes in the 10mm tubing, through the holes of the frame part 1.

6. Press-fit nuts into their sockets, insert 2 M3x30mm screws.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541427865304986091988611256535.jpg?300}}

7. Route 4-wire I2C cable (if needed for the head you're planning to build) and a 3-wire pot cable through the lever. This step may require some patience depending on the wires being used.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541431486518527466353623168875.jpg?300}}
{{http://hc625ma.org/wp-content/uploads/2019/04/15541431906525001069622652028848.jpg?300}}

8. Solder the pot wires, and route the I2C cable through the cable channel, in the throttle frame: Part 1.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541453256243437207042185727892.jpg?300}}

9. Turn the pot fully to the left, then just a notch to the right. 
Put the throttle grip on (if required, make the hole a bit wider, or squeeze the pot knob a bit, with pliers) in a way, that it will be in “Fully Open” position (See the picture below). Please make sure that the pot is able to rotate freely.

{{http://hc625ma.org/wp-content/uploads/2019/04/15541463688991825727795946775650.jpg?300}}

10. Solder the cables to your Arduino Pro Mini board, as follows:

    THROTTLE POT AND I2C HEAD CABLE +5V  -> Pro Mini VCC
    THROTTLE POT and I2C HEAD CABLE GND) -> Pro Mini GND
    THROTTLE POT SIGNAL                  -> A1
    I2C HEAD CABLE SCL                   -> PRO MINI PIN A5
    I2C HEAD CABLE SDA                   -> PRO MINI PIN A4
    

11. Follow your chosen head's assembling manual.
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