|Feb 07, 2010, 11:06 AM|
Turnigy Servo Speed & Direction Regulator Information & Diagram
Hobby City now has a small servo speed and direction regulator circuit for about $7.50USD. This is the perfect device to add realism to flap and landing gear operation of RC aircraft. At this price, the addition of realistic flap and landing gear operations for RC aircraft is a real "no-brainer"!
The device takes 1 channel from your receiver as input (usually flaps or gear), and provides 3 identical slow-speed outputs for servos, CH1, CH2 and CH3. The servo speed for all 3 outputs is adjustable for each direction of servo movement. So it is possible to have flaps retract faster than they deploy, for example. The CH3 servo output direction is reversible.
Input: Single channel from receiver, usually Flaps or Landing Gear.
Outputs: 3 slow speed servo outputs, CH1, CH2 and CH3.
CH3 servo direction is reversible.
Independent servo speed adjustment for each direction of servo travel.
(SW1 sets Direction A speed adjust, SW2 sets Direction B speed adjust).
SW1: Sets servo direction A speed for all 3 servo outputs, CH1, CH2 and CH3.
SW2: Sets servo direction B speed for all 3 servo outputs, CH1, CH2 and CH3.
SW3: Sets Normal or Reverses direction for CH3 output ONLY.
Note that the device does not provide for servo end-point adjustments. So if you wish to use your transmitter to adjust individual endpoints for 2 flap servos, for example, you need to use two regulator devices, one for each servo.
The input connections for the regulator consist of three pins, similar to the connection for each channel of a typical receiver (see diagram below). So, to connect the Turnigy regulator to the receiver, you can plug one end of a servo extension wire of the required length into the receiver. The other end of the servo extension cable will need to be soldered to the regulator board input pins, or a 3-pin Female servo connector can to be added to the regulator input end of the extension cable. Personally, I find it easiest and fastest to simply cut one connector off the end of a servo extension cable, prepare the end for soldering, and solder the 3 wires to the regulator input pins.
That all there is to it! Like me, you may wish to keep a couple of the Turnigy devices handy for the next build!
The diagram below provides:
1. Block diagram
2. Readable size for front and back labels.
3. Illustrates SW1, SW2 and SW3 settings
4. Receiver and Servo connections example for slowing down flaps.
|Mar 17, 2010, 05:02 PM|
Thanks for this, I'm about to set up landing gear speed on a new scale model I'm working on. The instructions were very sparse, a quick search revealed your blog post, thanks so much!
|Sep 15, 2010, 12:25 AM|
Connect 2nd servo to channel 3, and set channel 3 to the reverse direction.
Channel 3 is the only output channel that can be set to either normal or reverse direction.
|Sep 26, 2010, 10:33 AM|
I have not noticed additional drag from the open cockpit, but I do have a bit of extra top-end available on the throttle, since I upgraded the stock motor to a Turnigy 3536C 1100kv brushless motor. I may be compensating for a bit of extra drag without taking notice of it. The motor upgrade also gives a much needed boost to the vertical climb capability, which I found very lacking with the stock version. A vertical corkscrew maneuver sure looks good now!
The canopy does not blow off. This canopy has a snug fit which helps, but the rare-earth magnet does a good job of holding the rear of the canopy down. If this became an issue, I would likely just put in a larger rare-earth magnet.
|Dec 27, 2010, 12:57 AM|
I read in a post somewhere that this is not reccomended for a dx6i. Does anyone know why? I have a DX7 and a Parkzone Stinson Reliant SR-10 I want to use it on to make the flaps more realistic.
|Jun 01, 2011, 05:37 PM|
United States, CA, Pomona
Joined Mar 2008
If i'm not mistaken, the DX7 has speed regulation built in, doesn't it? This means you do not have to use the servo regulator.
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