Eachine Racer 250 get crazy - RC Groups
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Nov 06, 2017, 01:04 PM
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Discussion

Eachine Racer 250 get crazy


Hi to all,
I have a big problem with my Eachine Racer 250 Pro, after some minutes of flight it gets crazy, one motor rise at 100% and soon the quad go crash.
The quad is new, after bought it I changed the flight controller with F3 Racing Deluxe 10D customized for Eachine.
After 2 flight (without crash) it begins to get crazy and I'm becoming crazy too becouse don't understand the problem.
I don't thing the problem could be ESC (BlHeli original) or motor becouse sometimes motor n 2 rise to 100% sometimes motor n 3. I show You blackbox image.
Receiver is Flysky 2.4G 6CH FS-iA6.
The only thing I changed is the flight controller.
Sometimes 1 motor don't start when I arm the quad (n 2 or n 3 off), when it happens I turn off all and turn on another time so it can fly.

Please help me to understand which is the problem.

Thank You in advance
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Nov 06, 2017, 04:23 PM
Registered User
Maybe issue solved, it's the second F3 Spracing 10DOF that give me this problem.
I replaced the Flight Controller with the original 6DOF and quad goes perfectly, I tested with 3 different batteries (about 25 minutes of flight in total)
I'll stop to buy F3 Spracing 10DOF and will try F7 Omnibus Pro.
Nov 08, 2017, 03:05 PM
Registered User
Not solved, today after 20 seconds of flight same problem, motor n3 has gone to100% and quad crashed, after I tried to start again but motor n3 didn't start, so I calibrated ESC by BF and motor N3 started but didn't started n2, I connected quad by BlHeli configurator (Chrome) and ESC n 2 didn't connect...So I think the problem could be ESC's, but I don't understand how is possible becouse the quad is new, I feel very frustrated, someone can help me to understand what happened!
Flight Controller now is F3 6D0F, but before by 10D0F and same problem.
Motors are original 2205-2300KV, ESC BlHelis 20A DSHOT600
Firmware Betaflight 3.2.2. but tried Cleanflight 2.1.0 too, Battery 3S 1500 Mah but tried 3S 1800 and 4S 1350 too.
Receiver Eachine I6 2.4G 6 CH PWM
VTX and camera original

Thank You in advance...
Last edited by Xklaus; Nov 08, 2017 at 03:27 PM.
Nov 09, 2017, 10:22 PM
Registered User
Try dshot300 and see if that helps?
Nov 10, 2017, 03:50 AM
Registered User
Quote:
Originally Posted by OLderDan
Try dshot300 and see if that helps?

Maybe I have understood the problem, in Eachine Racer 250 and 250 PRO the connections between FC and ESC are by a customized wiring, I think by vibration this connection isn't so strong and sometimes the signal from FC and ESC could be lost.
Yesterday I made many tests, and when motor 2 or 3 didn't arm I touched the plug and soon motor get start and it flies perfectly for some minutes, suddenly get crash for the same problem (1 motor rise 100%), I touched again the plug and it flies good again.

I show You photo about this plug, I put red arrows to make You understanding it better.
Tomorrow I'll replace connection by normal wiring (I'll solder directly signal cables from ESC to FC) and so I could be sure about the issue.

An advice for all: don't trust Eachine customized connections, I become crazy to understand which was the problem I never could think that customized wiring can create so big problem
Also connection from antenna and VTX is very bad, at first crash will get break.
Nov 21, 2017, 10:41 AM
Registered User
Quote:
Originally Posted by Xklaus
Maybe I have understood the problem, in Eachine Racer 250 and 250 PRO the connections between FC and ESC are by a customized wiring, I think by vibration this connection isn't so strong and sometimes the signal from FC and ESC could be lost.
Yesterday I made many tests, and when motor 2 or 3 didn't arm I touched the plug and soon motor get start and it flies perfectly for some minutes, suddenly get crash for the same problem (1 motor rise 100%), I touched again the plug and it flies good again.

I show You photo about this plug, I put red arrows to make You understanding it better.
Tomorrow I'll replace connection by normal wiring (I'll solder directly signal cables from ESC to FC) and so I could be sure about the issue.

An advice for all: don't trust Eachine customized connections, I become crazy to understand which was the problem I never could think that customized wiring can create so big problem
Also connection from antenna and VTX is very bad, at first crash will get break.
Now I'm sure, I used external cables to connect FC to ESC signals and after 1 week of flight all ok


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