Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

First of all I would like to know if you have used metal nuts on the MMs?

If there is no possibility of a short circuit try to switch the MMS. You said that you tried an other MM but not the MM which is obviously doing the job.

I have used m3 nuts at the back and on the front?

Already I know where you are going..

Feeling a bit stupid right now

BUT there are nuts at all 4 MM's
And by inspecting a MM at the back the ground terminal id pretty close. but looks like it is isolated by a coat on the PCB?

But yeah Pit.
Have already tried switching MM's.
Didnt get it wrote in my precious post.

But everytime I have tried anything I have always mounted it with the nuts..
SO It is definately worth a try..

Willing to try everything.

I really hate when things isn't working probably..

mate I have KILLED two MMs because of a creeping short circuit of pretty smaller metal screws - in comparison with your nuts notabene ......

Your rig looks phantastic, but do not expect that all is working from the beginning. So take patience...

If you touch one of these two small metal lines you can be sure that is not the best thing you can do for your MMs
One more hint: You have to measure both channel outputs separately if the power output is equal or similar to the other channel. If this is confirmed you can "double your MM burger", if not you will get on one channel higher voltage and this is resulting in creeping current from the MMs.

Even if you said you checked all, I am sure there is more space for checking out more things. IMHO I say this from my own experience

Yeah.
If you have a problem there is always a fix for it.
In my case I got stuck.
But got 2 things to try out now thanks to you..
Exactly the marked spot you did is the one the nut have touched.
Will give it a try later and tell how it went..


Thank you so much for the assistance so far @Pit

Another thing to look at... assuming it does it with SMC3Utils, have a look at the yellow line on the chart. If it is jumping up and down significantly more than the other motors at idle it is because the motor is being driven more harder to keep it in position. This could be that there is a noisy POT causing the system to hunt for a stable position.

EDIT: Also if the problem follows the motor (as I read it) maybe that motor is faulty and doesn't turn as smoothly and needs more current to drive it?

What sort of POTs are you using? They can range in quality greatly. Good quality POTs are important.

Sorry, having trouble understanding what the problem is with the google translation.
It looks like it is working in the video?
The POT signal looks noisy - the green line on the chart is the POT feedback and seems to be jerking up and down at times.
It looks like you run a single wire from the center of POT back to the arduino and the +5V and GND go somewhere else? All three POT wires should be twisted together and run back and connect at the arduino to minimise noise.

Yes, and twist the wires together.
Or use shielded wire with the shield connected to ground.
Also keep the POT wires away from motor power wires if possible.

Well.. First of all I tried moving the MMs away from the m3 nuts.
- Still the same..

Tried to use only one of the MM's.
-Still the same
Tried the other and still the same..

My best guess is some noise causing those problems.
When looking in the smc3 utility the yellow line in the chart is going more up and down than the "good one which is motor 2".
Have tried with a new cermet pot.
Still the same.
I have ferrit corres mounted on the pots near the arduino. Plus I have ferrit corres mounted at the motors.

Next up I will try wiring outside the controller box so the wires isn't placed near each other to 100% eliminate that noise could be a factor.

The motor runs as good as the other and works when I switch them around.
So that aint that either..

hola te queria preguntar como uno hace exactamente para que el juego mande la se~ales al game engine . yo tengo la configuracion de 2 motores uno para el pitch y otro para el roll mi problema es que puedo hacer funcionar los motores con SMC3 utils lo mas normal pero a la hora que ago el plugin y corro el juego para tuning center el juego no me envia ninguna se~al.

ok I will do that. thank you

here is my thread: https://www.xsimulator.net/community/threads/game-not-sending-data.9296/

a deadzone in excess of 2 would tell me that there is signal interference at the pots. this can be caused by poor connection, poor quality or worn pots or a bad ground somewhere in the system. I can not state this enough GET GOOD POTS. use the hall/magna pots they are a little more expensive but they are worth it.
http://www.mouser.com/Search/Produc...rtualkey57700000virtualkey858-6127V1A180L.5FS

Hi Guys,

Now here is my moving stuff, finally it is working charmy.
Thanx 4 all for the advices. Finally I have made it as mode1.
Made it with 2x BMW wiper motors, MM Shield and
Arduino R3. Runs with the current smc3 code.

Cheers,
George

hi, i just connected my system using 2x 43A so i set the .ino to mode 2 and i'm connected to the arduino from the SMC3 app

now and i see what i need to do, on 'Out Mode' , lower left side, i select manual mode then i can drag the blue slider on the right of the graph up and down and the selected motor should move to follow the blue target line. NOTE, my setting are Fpid/p/i/d/s = 1,200,0,0,1 min/max/rev = 50,205,0 max/clip/dz = 215, 255, 1

my question, on the motor on/off button on the top left, click turns it on, but for me, clicking again doesn't turn it off. is this a known bug, or something i'm doing wrong? how do i turn a motor off once i've turned it on?


thanks