Home Forums Everything about the Mini Tricopter Interested in Father / Son project

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  • #39085
    Kevin_Erik
    Moderator

    Found the problem…

    ESC was faulty.

    Unfortunately, the tail motor just smoke-checked itself. (it’s very hot to the touch) Closed out the video just before the motor died. Had I kept the video rolling 5 more seconds I’d of captured it.

    Video of tail motor pulsing just before failure
    https://www.twitch.tv/videos/166104869

    Please be aware that all motors are spinning at 10-15% of maximum just to verify operation and direction of rotation.

    #39153
    Kevin_Erik
    Moderator

    David,

    We, received both the ESC and the motor today, swapping both out for the faulty ones. Motor test and spin direction performed perfectly.

    Soon we will program the Taranis and then match the Betaflight software to the channels / functions set.

    Cheers

    Kevin

    #39170
    Kevin_Erik
    Moderator

    Everything is programed and ready to go!

    Setting everything up for the test flight / tail-tune tomorrow morning. If all goes well, I should be able to make a video via the mobile display.

    Fingers crossed!

    Kevin

    #39178
    Kevin_Erik
    Moderator

    Made the first flight (video link):
    https://www.twitch.tv/videos/168415300

    However I did notice that the rear motor is delayed spinning up:
    https://www.twitch.tv/videos/168419201

    It’s like the rear motor comes on after the forward motors are already spun up. Which makes it feel as if its about to flip end over end. Not sure why this is happening but the tri did fly fine once i restarted a few times to ensure that the motors had spun up.

    Anyone know what could be causing this?

    Kevin

    #39184
    LitterBug
    Participant

    You probably need to calibrate the ESC endpoints. Make sure you REMOVE YOUR PROPS before calibrating.

    Connect tri via USB cable to your computer and start BetaFlight Configurator.
    Go to the motors tab.
    click the “I understand what I’m doing” switch to allow the motors to spin.
    Raise the “Master” slider to the top.
    Plug in the main battery.
    The motors should do an extended series of beeps longer than the normal ones when you plug the battery in.
    After the beeps stop, Move the “Master” slider all the way down.
    The motors will do another series of beeps.
    After those beeps stop, you can test if the motors start spinning at the same time with the “Master” slider.

    Cheers!
    LitterBug

    #39190
    Kevin_Erik
    Moderator

    The ESC’s, tail-tune and accelerometers were all calibrated just prior to the event.

    #39196
    LitterBug
    Participant

    Can you post a “diff” from CLI? Maybe the motor idle speed needs to be bumped up a bit.

    Cheers!
    LitterBug

    #39215
    Kevin_Erik
    Moderator

    Haven’t modified anything so all values are standard from firmware “triflight_0_5_ALPHA2_servo_release_RCE.hex”.

    Cheers

    Kevin

    #39221
    Kevin_Erik
    Moderator

    CLI

    # diff
    # Triflight 0.7 Beta 2 / RCEXPLORERF3 3.1.7 Jun 4 2017 / 13:39:27 (1698ba5)
    servo 5 1011 1879 1429 40 40 100 -1

    feature SERVO_TILT
    feature CURRENT_METER
    feature VTX
    map TAER1234
    aux 0 0 0 900 1050
    aux 1 28 2 1300 1700
    aux 2 1 2 900 1300
    aux 3 2 2 1700 2100
    aux 4 31 1 900 1050
    set min_check = 1000
    set max_check = 2000
    set rssi_channel = 16
    set min_throttle = 1000
    set 3d_deadband_throttle = 10
    set align_board_pitch = 180
    set deadband = 10
    set yaw_deadband = 10
    set tri_tail_servo_speed = 305
    set baro_hardware = AUTO
    profile 0

    rateprofile 0
    rateprofile 0

    #

    #39260
    Kevin_Erik
    Moderator

    I think this article may resolve my issue of the motors spinning-up at different times.

    Achieving Linear Throttle Response – Motor Top End Calibration

    Kevin

    #39286
    Kevin_Erik
    Moderator

    Received the new camera, landing gear, and noise filtering capacitors (330uf, low esr). Everything installed and tests out 100% on the bench. If all goes well will give it a go within the hour.

    Note: caps were installed on the input power leads to the ESC’s as the noise spike from the motors made the video from the last camera garbage.

    Kevin & Erik

    #39290
    Kevin_Erik
    Moderator

    Unfortunately flight was canceled due to rain.

    Maybe Friday or Saturday.

    #39470
    Kevin_Erik
    Moderator

    Added ducted fans just for fun…
    Tri-copter mini with ducted 5x4x3 props

    #39472
    LitterBug
    Participant

    Slick! Might come in handy for some indoor flying. Did you design and print those yourself?

    Cheers!
    LitterBug

    #39473
    BLeeK
    Participant

    NICE!!!
    More info please- did you find them somewhere or make them yourself?
    If printed, is there any chance of sharing the files please????
    Would make learning to fly SO much less fraught with fears of crashing & damaging! 😀

Viewing 15 posts - 31 through 45 (of 60 total)
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