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AutoQuad Forum • View topic - ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Info and Discussion about the ESC32 hardware and software

ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Mon Sep 14, 2015 8:30 pm

Hi,

I have just finish the ESC32 V3 calibration procedure for the combination below:
- RC TIMER 5010-260 KV :
- RC TIMER 17x5.5 propeller :
- 6s multistat 5200 Ma Lipo :
- Turnigy Thrust Stand :

- default configuration off ESC

RPM calibration :
ESC32_v3.3.1_cal_R2V_20_RCtimer5010-260kv-17x5_5.JPG


Trusth curve :

thrust-RCtimer5010-260kv-17x5_5.JPG
thrust-RCtimer5010-260kv-17x5_5.JPG (72.13 KiB) Viewed 11726 times



fred
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby JussiH » Tue Sep 15, 2015 8:55 am

Thanks for posting!

I am not sure I like your thrust curve - the peaks and bumps points to problems with the measurement accuracy or other disturbances. I would expect to see a more even distribution of the data points.

Why are the RPM intervals in "odd" numbers. Are you using a servo tester to run the motor? Is the test motor set to closed loop RPM and the FF terms properly loaded?

You should use the RPM command to control the motor to an exact RPM and measure the thrust produced.

I would recommend doing the measurements in 300 or 500 RPM intervals....so its like 300-600-900-1200 etc.
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Tue Sep 15, 2015 9:41 am

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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Tue Sep 15, 2015 6:59 pm

new thrust graph

thrust-RCtimer5010-260kv-17x5_5-v2.JPG
thrust-RCtimer5010-260kv-17x5_5-v2.JPG (69.99 KiB) Viewed 11686 times
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby chschmid » Thu Sep 17, 2015 6:11 am

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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby afernan » Thu Sep 17, 2015 9:12 am

At 4000rpm, it gives 1.3Kg thrust with 17", while Christof shows 900g with 15" at same rpm. Seems good value.
It can´t get more rpm because kv=360 I guess (I don´t know RCTIMER 5010 kv=260)

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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Thu Sep 17, 2015 11:38 am

yes the RCTIMER 5010-260 is not so bad for the price motor 20 € and propeller 9 € and suitable for recreational use.

I think we have more RPM in the air.

I test later with 18x5.5 propeller ..
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Mon Sep 21, 2015 1:03 pm

After reading some post ans test my last esc32v3 configuration file

ACTIVE_FREEWHEEL 1
ADVANCE 20
AUDIO_VOLUME 2
BAD_DETECTS_DISARM 32
BAUD_RATE 230400
DIRECTION -1
ESC_ID 1
FF1TERM 5.45419e-07
FF2TERM 0.00359981
GOOD_DETECTS_START 48
ITERM 0.005
MAX_CURRENT 9
MAX_PERIOD 12000
MIN_PERIOD 50
MOTOR_POLES 14
PTERM 0.5
PWM_HI_VALUE 1950
PWM_LO_VALUE 1000
PWM_MAX_PERIOD 20000
PWM_MAX_VALUE 2250
PWM_MIN_PERIOD 2200
PWM_MIN_START 1100
PWM_MIN_VALUE 750
PWM_RPM_SCALE 4000
RPM_MEAS_LP 0.75
SERVO_D 0
SERVO_DUTY 5
SERVO_MAX_RATE 1000
SERVO_P 0.05
SERVO_SCALE 360
STARTUP_MODE 0
START_CURRENT 0.75
START_VOLTAGE 2.5
SWITCH_FREQ 20
THR1TERM 0
THR2TERM 1
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby fred_fr » Sat Sep 26, 2015 5:18 pm

Some test today

with this configuration the motor 4 stops occasionally ad restart after.

I thinks is a problem of advanced timing , I"m right ? , I need to increase advance timing i?
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Re: ESC32V3 + RCTIMER 5010 260Kv + RCTIMER 17x5.5

Postby LPR » Sat Sep 26, 2015 7:02 pm

Fred

Having just one motor stop will flying is not a good thing. You might want to check the temperature of the ESC32 V3. If they are over 80 c that might be the problem. I would doubt that temperature is your problem but if you have them inclosed with no heat sink that might be your problem.
You can read the temperature with QGC ESC Telemetry.

Your motors with just 12 poles should not need to have a high timing advance but you could try it.

Larry
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