RX transplant

[wilo76]

As well as the storm 3d and razor cx i also have two indoor helis , the first a double horse 9074 and the second a syma s006. ok.... the double horse has excellent tx and trims very well but has a faulty motor i think so wont lift properly. The syma has tons of power but trimming these heli,s is like waiting for a miracle to happen. so my question is ....can i transplant the rx out of the 9074 into the syma s006 and control the syma using the 9074 tx?

[wilo76]

anyone? , i just need to know if its poss before i start tearing heli,s apart . Tried a net search for the last 2 hours and cant find any info .they are both 3 chanel contra rota heli,s but the 9074 has a gyro and s006 does not, syma s006 spec list is....
Technical Specifications:

• Model: Syma S006 Alloy Shark R/C Helicopter
• Main Rotor Diameter: 340mm
• Length: 375mm
• Width: 72mm
• Height: 190mm
• Tail Rotor: 70mm
• Radio Controller: 3 Channels
• Main Motor: Type 130
• Flight Time: Approximately 15 minutes
• Charge time: Approximately 1 hour
• Requires 4 x AA batteries (not included)

What's included?

• SYMA 600 Shark Alloy R/C Helicopter
• 3-CH Radio Transmitter with adjustable trim control
• 3.7V Li-polymer 185mAH Rechargeable Battery Pack (For Helicopter)
• Instruction Manual
• Suitable for Ages 14+
• Requires 4x AA Batteries for transmitter (not included .................................................. .................................................. ...........the spec list for the 9074 is Double Horse 9074 Metal Helicopter with Gyro
  
  The Double Horse 9074 is a superb-looking metal, 3.5-channel R/C helicopter with built-in Gyro. You can control it in 3 directions, up/down, left/right, forward/reverse, and the gyro gives great stability and very precise rotational movement for really accurate steering. The helicopter has excellent handling, very stable in flight, very controllable and easy to land on target.
  This medium sized indoor helicopter measures 295mm in length with a rotor diameter of 285mm. It has a robust design and is based on a metal frame, making it pretty tough and crash resistant. Controlled by a high quality radio control transmitter, and powered by a Li-Poly battery, the 9074 comes with a wall charger, and will fly for around 8 minutes off a 90 minute charging time. The transmitter requires 8 x AA batteries, not supplied. This exceptional helicopter has the added stability and manoeuvrability provided by the gyro, which is the very latest innovation in remote control helicopters, and is ideal for indoor flight.
  
  Helicopter Specification
  
  Weight: 34g
  Size: 295mm x 52mm x 150mm, rotor diameter 285mm
  Helicopter battery: 3.7v 800mAh rechargeable lithium polymer battery
  Charging Time: 90 minutes
  Flight Duration: 8 minutes
  Control Specification: forward / backward / up / down / left / right precision control
  Range: Up to 30m
  Transmitter / Charger Requires 8 x AA Batteries
  
  .....

[cjcj1949]

Doesn't sound like a good idea. There may be a fault with the rx causing the heli not to lift. The easiest thing to do is to get the sort of helis other people use like the mcx or the msr. I can help you faultfind your existing equipment if you want. I started off with the Twister Storm. Mine used to fly very well inbetween crashes.

You've just posted more info. Sorry, the 3 channel stuff is very different from the stuff I know about.

Chris

[wilo76]

thx Chris , i would like to try fix or addapt these 2 instead of buying another heli . The next heli i only want to buy is the ELYQ50e once im confident with the storm . the main problem with the syma is that it is near impossible to trim these things (you either get a good one or a total piece of cr4p). The 9074 is (was) the most stable thing iv ever flown and great fun ...but for some reason it just wont lift anymore than 2 feet off the ground (from full charge) and if i apply any rudder what so ever it drops like a stone as if the powers been drained . the 9074 was perfect last time i flew her and never been crashed , the syma has always flown like cr4p from day one with the trims just not accurate enough .

[cjcj1949]

I'd start by testing the motor you think is faulty. Unsolder one of the leads and connect it to a battery the same volts,about, as its own battery.
Do you have a mumltimeter and understand volts, amps and resistance?

Chris

[wilo76]

I'd start by testing the motor you think is faulty. Unsolder one of the leads and connect it to a battery the same volts,about, as its own battery.
Do you have a mumltimeter and understand volts, amps and resistance?

Chris

yes i understand volt , amps etc but lent my tester out and never got it back . i am thinking of just desoldering the lipo and motor conections from each heli,s PCB then swapping the PCB,s over and hopefully i will have a syma s006 with a gyro and better RX .there is a very slight difference between the two heli,s voltage and motor size , but i am just hoping the PCB from the less powerfull 9074 can addapt to the syma and hope the difference in power dosnt fry the 9074,s PCB .

[cjcj1949]

The gyro is a feedback device so it should work with different inertia systems up to a point. You might find that a bigger lipo will keep the gyro from drifting as a lot of systems drift as the volts drop.

Good luck. Mumtesters are very cheap.

Chris

[wilo76]

Well i swaped the PCBs over and the 9074 tx now controls the syma heli , but the heli just spins fast with no lift at all . tried swaping the motor conectors arround (rear/front/left/right) but symtoms are the same and if i try full trottle ....the heli goes mental and tries to chop its self in half .