Quad RCX250 Mini quad Build thread

kamoex

New Member
Finally able to pass the TX calib by modifying the Devo 7 settings below:

[MODEL] > [TYPE] > AERO
[MODEL] > [INPUT] > FM SW = FMD
[MODEL] > [INPUT] > FMTRM = COMM
[MODEL] > [INPUT] > HLDSW = HOLD
[MODEL] > [OUTPUT] > GEAR = FMD and ACT
[MODEL] > [OUTPUT] > FLAP = MIX and ACT
[MODEL] > [OUTPUT] > AUX2 = AUX2 and ACT

But the problem the quad is going backward (tilting backward) at the initial flight so I did not take the courage to lift it up or throttle a bit higher.

Any idea what's the problem on this? Sorry i'm just new to this stuff.

Thanks in advance.
 

Tony

Staff member
In the setup of the CC3D, did you make sure the quad was completely level before you hit that calibrate button? If not, then you need to do that.
 

Tony

Staff member
You can go into the cc3d program and click on teh icon on the left that looks like a bubble level. On that page, with your cc3d connected, you can level the quad again without having to go completely through the whole setup.
 

kamoex

New Member
You can go into the cc3d program and click on teh icon on the left that looks like a bubble level. On that page, with your cc3d connected, you can level the quad again without having to go completely through the whole setup.

Hi Tony, I was able to level my quad properly but still tilting backward. Do you think I need to adjust something on my TX? Thanks
 

Tony

Staff member
Click on Input in the cc3d program, then click on the Tx setup wizard. I suspect your sticks are not registering as center. Make sure everything is centered whey they instruct to do so. Make sure you are giving full throws when asked as well.
 

kamoex

New Member
Click on Input in the cc3d program, then click on the Tx setup wizard. I suspect your sticks are not registering as center. Make sure everything is centered whey they instruct to do so. Make sure you are giving full throws when asked as well.

I think its somewhat ok now.. just need a lil bit of tuning.

Thank you so much for your effort and time Tony. I really appreciate it. :)
 

Tony

Staff member
It's my pleasure. I'm still new to these boards and learning more and more every day.
 

kamoex

New Member
It's my pleasure. I'm still new to these boards and learning more and more every day.

I dont maybe this hobby is not for me :(

I flew my quad for morning practice and after 1 minute the quad suddenly goes down as one motor stop working but I found out that ESC was acting weird.

At initialization the ECS (affected one) beeps properly but when you throttle the ESC beeps. I tried the steps below but no luck.

- tx on
- Full throt full
- plug batt to esc - wait 5 secs
- Full throt zero
- dis con batt
- tx off

- - - Updated - - -

I dont maybe this hobby is not for me :(

I flew my quad for morning practice and after 1 minute the quad suddenly goes down as one motor stop working but I found out that ESC was acting weird.

At initialization the ECS (affected one) gives extra beep and when you throttle the ESC beeps as well. I tried the steps below but no luck.

- tx on
- Full throt full
- plug batt to esc - wait 5 secs
- Full throt zero
- dis con batt
- tx off

updated!
 
Kam
don't get bummed out you have made it so far.
Everyone experiences subtle little problems and that's what
Forums are made for, to help you get through them.
I got back into the RC hobby just about a year ago.
I honestly had no clue.
But in that year I have learned much more than I when I started.
Quads are a bit harder only because you have 4 of everything to get
Dialed in on.
I sometimes wish I would have started with a low level airplane just something
To get me in the air but I love quads so I dug my heals in and dove head first.
I am by no means an expert but I feel much more comfortable now than I
Did a year ago.
If I run into a brick wall I normally just step back and get out of the situation
And then come back to it with a fresh mind.
Just know at some point something will click and you will be back in the game.
 

Lee

Well-Known Member
I dont maybe this hobby is not for me :(

I flew my quad for morning practice and after 1 minute the quad suddenly goes down as one motor stop working but I found out that ESC was acting weird.

At initialization the ECS (affected one) beeps properly but when you throttle the ESC beeps. I tried the steps below but no luck.

- tx on
- Full throt full
- plug batt to esc - wait 5 secs
- Full throt zero
- dis con batt
- tx off

- - - Updated - - -



updated!

Have you tried checking the motor/esc through the Vehicle set up wizard?
Try recalibrating them, then go to the motor set up page and test the individual motor/esc combos.
If that works, then at least you know they are working.
If not, try moving the affected ESC to another port on the RX, to test if its an RX issue.
Next try moving the ESC to another motor, to see if the issue follows the ESC, or stays with the motor.
Don't give up. We all have issues at one time or another. I'm having issues with two of my aircraft at the moment :(
 

kamoex

New Member
Have you tried checking the motor/esc through the Vehicle set up wizard?
Try recalibrating them, then go to the motor set up page and test the individual motor/esc combos.
If that works, then at least you know they are working.
If not, try moving the affected ESC to another port on the RX, to test if its an RX issue.
Next try moving the ESC to another motor, to see if the issue follows the ESC, or stays with the motor.
Don't give up. We all have issues at one time or another. I'm having issues with two of my aircraft at the moment :(

Hi Guys,

Thank you for your time and effort in helping me.

@Lee - yes, made some calib in GSC but no luck. I also tried replacing the motor with a brand new one but still the same issue.

Here's the link of my problem: https://youtu.be/T0xk49JZRBE
 

Lee

Well-Known Member
First things first.
You cannot have the bare ESC pressed against the carbon arm.
You are probably shorting out the electronics.
I would say its shorting out the esc, then re initialising.
 
Last edited:

kamoex

New Member
First things first.
You cannot have the bare ESC pressed against the carbon arm.
You are probably shorting out the electronics.
I would say its shorting out the esc, then re initialising.

Opsss my bad! But actually I took off the insulator to see if there are burnt components but there was not. And the result is still the same with/out the insulator.

Btw, thanks for the tip Lee. :D
 

Lee

Well-Known Member
I would check all your connections. The sound is the esc initialising.
So when you give it power, it may be that its loosing connection somewhere, then restarting.
 

kamoex

New Member
I would check all your connections. The sound is the esc initialising.
So when you give it power, it may be that its loosing connection somewhere, then restarting.

Let me transfer to another port of the distribution board.
 

Lee

Well-Known Member
Hey Kamoex,
Just had a friend here in Spain with exactly the same issue as you.
Same set up.
He has ordered a new ESC to see if that fixes the problem.
I'll let you know what happens.
 

bluemeane

New Member
I just got my RCX 250 from RC-Mart and I set up CC3D board and all looks good except I have a pretty bad side to side? wobble. Makes it really hard to get it to hove. How do I adjust the board to get this to go away??
 
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