This forum uses cookies

shep · (This post was last modified: 29-Nov-2017, 03:33 PM by shep.)

I have just finished my build of a 110mm 2" micro. I have, to my knowledge, completed all normal steps of configuration and flashing in both BLHeli and BetaFlight. However when I attempt to fly it, it will only lift off a few inches off the ground.

I've exhausted my research in relation to my knowledge in the hobby to solve this one and need the help of more experienced quad builders.

I've made sure that I eliminated most things that tend to be the cause (propellers on upside down or on the wrong motors, motors spinning the wrong direction, throttle max setting).

Below are my specs and my BetaFlight dump.

Any help or clues for what to further research are greatly appreciated!

Total listed weight: 95.49g

Code:
Specs:
 Gens ace 7.4V 450mAh 2S LiPo Battery Pack 25C 28g 
 Frsky XM Plus Mini RX 1.6g
 Makerfire 1935 2" props 2.72g
 FuriousFPV 70mm 5G8 U.FL Linear Antenna .6g
 RunCam Swift Micro 2 5.6g
 Makerfire D1106 3800KV Brushless Motor 1-3S Racing Edition 26g
 GEP HX2 Hummingbird 3inch Frame 110mm 17g
 FuriBee Flytower Plus Mini F4 Flight Controller 9g
 Eachine VTX03 Super Mini 5.8G 72CH 0/25mW/50mw/200mW Switchable FPV Transmitter 2.97g
 Matek Systems 90dB 5V Loud Buzzer Lost Model Beeper 2g
 
 BetaFlight Dump:
 # version
 # Betaflight / OMNIBUSF4 3.1.7 Apr  3 2017 / 22:14:59 (e1c4b5c)
 
 # name
 name -
 
 # resources
 resource BEEPER 1 B04
 resource MOTOR 1 B00
 resource MOTOR 2 B01
 resource MOTOR 3 A03
 resource MOTOR 4 A02
 resource MOTOR 5 A01
 resource MOTOR 6 A08
 resource MOTOR 7 NONE
 resource MOTOR 8 NONE
 resource MOTOR 9 NONE
 resource MOTOR 10 NONE
 resource MOTOR 11 NONE
 resource MOTOR 12 NONE
 resource SERVO 1 NONE
 resource SERVO 2 NONE
 resource SERVO 3 NONE
 resource SERVO 4 NONE
 resource SERVO 5 NONE
 resource SERVO 6 NONE
 resource SERVO 7 NONE
 resource SERVO 8 NONE
 resource PPM 1 B14
 resource PWM 1 B14
 resource PWM 2 B15
 resource PWM 3 C06
 resource PWM 4 C07
 resource PWM 5 C08
 resource PWM 6 C09
 resource PWM 7 NONE
 resource PWM 8 NONE
 resource LED_STRIP 1 A01
 resource SERIAL_TX 1 A09
 resource SERIAL_TX 2 NONE
 resource SERIAL_TX 3 B10
 resource SERIAL_TX 4 NONE
 resource SERIAL_TX 5 NONE
 resource SERIAL_TX 6 C06
 resource SERIAL_TX 7 NONE
 resource SERIAL_TX 8 NONE
 resource SERIAL_TX 9 NONE
 resource SERIAL_TX 10 NONE
 resource SERIAL_TX 11 NONE
 resource SERIAL_TX 12 NONE
 resource SERIAL_RX 1 A10
 resource SERIAL_RX 2 NONE
 resource SERIAL_RX 3 B11
 resource SERIAL_RX 4 NONE
 resource SERIAL_RX 5 NONE
 resource SERIAL_RX 6 C07
 resource SERIAL_RX 7 NONE
 resource SERIAL_RX 8 NONE
 resource SERIAL_RX 9 NONE
 resource SERIAL_RX 10 NONE
 resource SERIAL_RX 11 NONE
 resource SERIAL_RX 12 NONE
 
 # mixer
 mixer QUADX
 
 mmix reset
 
 
 # servo
 servo 0 1000 2000 1500 90 90 100 -1
 servo 1 1000 2000 1500 90 90 100 -1
 servo 2 1000 2000 1500 90 90 100 -1
 servo 3 1000 2000 1500 90 90 100 -1
 servo 4 1000 2000 1500 90 90 100 -1
 servo 5 1000 2000 1500 90 90 100 -1
 servo 6 1000 2000 1500 90 90 100 -1
 servo 7 1000 2000 1500 90 90 100 -1
 
 # servo mix
 smix reset
 
 
 
 # feature
 feature -RX_PPM
 feature -VBAT
 feature -INFLIGHT_ACC_CAL
 feature -RX_SERIAL
 feature -MOTOR_STOP
 feature -SERVO_TILT
 feature -SOFTSERIAL
 feature -GPS
 feature -FAILSAFE
 feature -SONAR
 feature -TELEMETRY
 feature -CURRENT_METER
 feature -3D
 feature -RX_PARALLEL_PWM
 feature -RX_MSP
 feature -RSSI_ADC
 feature -LED_STRIP
 feature -DISPLAY
 feature -OSD
 feature -BLACKBOX
 feature -CHANNEL_FORWARDING
 feature -TRANSPONDER
 feature -AIRMODE
 feature -SDCARD
 feature -VTX
 feature -RX_SPI
 feature -SOFTSPI
 feature -ESC_SENSOR
 feature -FEATURE_ANTI_GRAVITY
 feature VBAT
 feature RX_SERIAL
 feature FAILSAFE
 feature OSD
 
 # beeper
 beeper GYRO_CALIBRATED
 beeper RX_LOST
 beeper RX_LOST_LANDING
 beeper DISARMING
 beeper ARMING
 beeper ARMING_GPS_FIX
 beeper BAT_CRIT_LOW
 beeper BAT_LOW
 beeper GPS_STATUS
 beeper RX_SET
 beeper ACC_CALIBRATION
 beeper ACC_CALIBRATION_FAIL
 beeper READY_BEEP
 beeper MULTI_BEEPS
 beeper DISARM_REPEAT
 beeper ARMED
 beeper SYSTEM_INIT
 beeper ON_USB
 
 # map
 map AETR1234
 
 # serial
 serial 20 1 115200 57600 0 115200
 serial 0 64 115200 57600 0 115200
 serial 2 0 115200 57600 0 115200
 serial 5 0 115200 57600 0 115200
 
 # led
 led 0 0,0::C:0
 led 1 0,0::C:0
 led 2 0,0::C:0
 led 3 0,0::C:0
 led 4 0,0::C:0
 led 5 0,0::C:0
 led 6 0,0::C:0
 led 7 0,0::C:0
 led 8 0,0::C:0
 led 9 0,0::C:0
 led 10 0,0::C:0
 led 11 0,0::C:0
 led 12 0,0::C:0
 led 13 0,0::C:0
 led 14 0,0::C:0
 led 15 0,0::C:0
 led 16 0,0::C:0
 led 17 0,0::C:0
 led 18 0,0::C:0
 led 19 0,0::C:0
 led 20 0,0::C:0
 led 21 0,0::C:0
 led 22 0,0::C:0
 led 23 0,0::C:0
 led 24 0,0::C:0
 led 25 0,0::C:0
 led 26 0,0::C:0
 led 27 0,0::C:0
 led 28 0,0::C:0
 led 29 0,0::C:0
 led 30 0,0::C:0
 led 31 0,0::C:0
 
 # color
 color 0 0,0,0
 color 1 0,255,255
 color 2 0,0,255
 color 3 30,0,255
 color 4 60,0,255
 color 5 90,0,255
 color 6 120,0,255
 color 7 150,0,255
 color 8 180,0,255
 color 9 210,0,255
 color 10 240,0,255
 color 11 270,0,255
 color 12 300,0,255
 color 13 330,0,255
 color 14 0,0,0
 color 15 0,0,0
 
 # mode_color
 mode_color 0 0 1
 mode_color 0 1 11
 mode_color 0 2 2
 mode_color 0 3 13
 mode_color 0 4 10
 mode_color 0 5 3
 mode_color 1 0 5
 mode_color 1 1 11
 mode_color 1 2 3
 mode_color 1 3 13
 mode_color 1 4 10
 mode_color 1 5 3
 mode_color 2 0 10
 mode_color 2 1 11
 mode_color 2 2 4
 mode_color 2 3 13
 mode_color 2 4 10
 mode_color 2 5 3
 mode_color 3 0 8
 mode_color 3 1 11
 mode_color 3 2 4
 mode_color 3 3 13
 mode_color 3 4 10
 mode_color 3 5 3
 mode_color 4 0 7
 mode_color 4 1 11
 mode_color 4 2 3
 mode_color 4 3 13
 mode_color 4 4 10
 mode_color 4 5 3
 mode_color 5 0 9
 mode_color 5 1 11
 mode_color 5 2 2
 mode_color 5 3 13
 mode_color 5 4 10
 mode_color 5 5 3
 mode_color 6 0 6
 mode_color 6 1 10
 mode_color 6 2 1
 mode_color 6 3 0
 mode_color 6 4 0
 mode_color 6 5 2
 mode_color 6 6 3
 mode_color 6 7 6
 mode_color 6 8 0
 mode_color 6 9 0
 mode_color 6 10 0
 mode_color 7 0 3
 
 # aux
 aux 0 0 0 1700 2100
 aux 1 28 2 1700 2100
 aux 2 1 2 900 1300
 aux 3 2 2 1300 1700
 aux 4 13 1 1700 2100
 aux 5 0 0 900 900
 aux 6 0 0 900 900
 aux 7 0 0 900 900
 aux 8 0 0 900 900
 aux 9 0 0 900 900
 aux 10 0 0 900 900
 aux 11 0 0 900 900
 aux 12 0 0 900 900
 aux 13 0 0 900 900
 aux 14 0 0 900 900
 aux 15 0 0 900 900
 aux 16 0 0 900 900
 aux 17 0 0 900 900
 aux 18 0 0 900 900
 aux 19 0 0 900 900
 
 # adjrange
 adjrange 0 0 0 900 900 0 0
 adjrange 1 0 0 900 900 0 0
 adjrange 2 0 0 900 900 0 0
 adjrange 3 0 0 900 900 0 0
 adjrange 4 0 0 900 900 0 0
 adjrange 5 0 0 900 900 0 0
 adjrange 6 0 0 900 900 0 0
 adjrange 7 0 0 900 900 0 0
 adjrange 8 0 0 900 900 0 0
 adjrange 9 0 0 900 900 0 0
 adjrange 10 0 0 900 900 0 0
 adjrange 11 0 0 900 900 0 0
 adjrange 12 0 0 900 900 0 0
 adjrange 13 0 0 900 900 0 0
 adjrange 14 0 0 900 900 0 0
 
 # rxrange
 rxrange 0 1000 2000
 rxrange 1 1000 2000
 rxrange 2 1000 2000
 rxrange 3 1000 2000
 
 # rxfail
 rxfail 0 a
 rxfail 1 a
 rxfail 2 a
 rxfail 3 a
 rxfail 4 h
 rxfail 5 h
 rxfail 6 h
 rxfail 7 h
 rxfail 8 h
 rxfail 9 h
 rxfail 10 h
 rxfail 11 h
 rxfail 12 h
 rxfail 13 h
 rxfail 14 h
 rxfail 15 h
 rxfail 16 h
 rxfail 17 h
 
 # master
 set task_statistics = ON
 set mid_rc = 1500
 set min_check = 1100
 set max_check = 1900
 set rssi_channel = 0
 set rssi_scale = 30
 set rc_interp = AUTO
 set rc_interp_ch = RP
 set rc_interp_int = 19
 set rssi_invert = OFF
 set input_filtering_mode = OFF
 set fpv_mix_degrees = 0
 set max_aux_channels = 14
 set debug_mode = NONE
 set min_throttle = 1070
 set max_throttle = 2000
 set min_command = 1000
 set digital_idle_percent =  9.000
 set 3d_deadband_low = 1406
 set 3d_deadband_high = 1514
 set 3d_neutral = 1460
 set 3d_deadband_throttle = 50
 set use_unsynced_pwm = OFF
 set motor_pwm_protocol = DSHOT600
 set motor_pwm_rate = 480
 set disarm_kill_switch = ON
 set gyro_cal_on_first_arm = OFF
 set auto_disarm_delay = 5
 set small_angle = 25
 set fixedwing_althold_dir = 1
 set reboot_character = 82
 set serial_update_rate_hz = 100
 set gps_provider = NMEA
 set gps_sbas_mode = AUTO
 set gps_auto_config = ON
 set gps_auto_baud = OFF
 set gps_wp_radius = 200
 set nav_controls_heading = ON
 set nav_speed_min = 100
 set nav_speed_max = 300
 set nav_slew_rate = 30
 set beeper_inversion = ON
 set beeper_od = OFF
 set serialrx_provider = SBUS
 set serialrx_halfduplex = OFF
 set sbus_inversion = ON
 set spektrum_sat_bind = 0
 set spektrum_sat_bind_autorst = 1
 set tlm_switch = OFF
 set tlm_inversion = ON
 set sport_halfduplex = ON
 set frsky_default_lat =  0.000
 set frsky_default_long =  0.000
 set frsky_gps_format = 0
 set frsky_unit = IMPERIAL
 set frsky_vfas_precision = 0
 set frsky_vfas_cell_voltage = OFF
 set hott_alarm_int = 5
 set pid_in_tlm = OFF
 set ibus_report_cell_voltage = OFF
 set bat_capacity = 0
 set vbat_scale = 110
 set vbat_max_cell_voltage = 43
 set vbat_min_cell_voltage = 33
 set vbat_warning_cell_voltage = 35
 set vbat_hysteresis = 1
 set ibat_scale = 400
 set ibat_offset = 0
 set mwii_ibat_output = OFF
 set current_meter_type = ADC
 set battery_meter_type = ADC
 set bat_detect_thresh = 55
 set use_vbat_alerts = ON
 set use_cbat_alerts = OFF
 set cbat_alert_percent = 10
 set align_gyro = DEFAULT
 set align_acc = DEFAULT
 set align_mag = DEFAULT
 set align_board_roll = 0
 set align_board_pitch = 0
 set align_board_yaw = 0
 set gyro_lpf = OFF
 set gyro_sync_denom = 8
 set gyro_isr_update = OFF
 set gyro_use_32khz = OFF
 set gyro_lowpass_type = PT1
 set gyro_lowpass = 90
 set gyro_notch1_hz = 400
 set gyro_notch1_cut = 300
 set gyro_notch2_hz = 200
 set gyro_notch2_cut = 100
 set moron_threshold = 48
 set imu_dcm_kp = 2500
 set imu_dcm_ki = 0
 set alt_hold_deadband = 40
 set alt_hold_fast_change = ON
 set deadband = 0
 set yaw_deadband = 0
 set thr_corr_value = 0
 set thr_corr_angle = 800
 set yaw_control_direction = 1
 set yaw_motor_direction = 1
 set servo_center_pulse = 1500
 set tri_unarmed_servo = ON
 set servo_lowpass_hz = 400
 set servo_lowpass = OFF
 set servo_pwm_rate = 50
 set gimbal_mode = NORMAL
 set channel_forwarding_start = 4
 set airmode_start_throttle = 1350
 set failsafe_delay = 10
 set failsafe_off_delay = 10
 set failsafe_throttle = 1000
 set failsafe_kill_switch = OFF
 set failsafe_throttle_low_delay = 100
 set failsafe_procedure = DROP
 set rx_min_usec = 885
 set rx_max_usec = 2115
 set acc_hardware = AUTO
 set acc_lpf_hz = 10
 set accxy_deadband = 40
 set accz_deadband = 40
 set acc_unarmedcal = ON
 set acc_trim_pitch = 0
 set acc_trim_roll = 0
 set baro_tab_size = 21
 set baro_noise_lpf =  0.600
 set baro_cf_vel =  0.985
 set baro_cf_alt =  0.965
 set baro_hardware = NONE
 set mag_hardware = NONE
 set mag_declination = 0
 set pid_process_denom = 4
 set blackbox_rate_num = 1
 set blackbox_rate_denom = 1
 set blackbox_device = SPIFLASH
 set blackbox_on_motor_test = OFF
 set magzero_x = 0
 set magzero_y = 0
 set magzero_z = 0
 set ledstrip_visual_beeper = OFF
 set osd_units = IMPERIAL
 set osd_rssi_alarm = 20
 set osd_cap_alarm = 2200
 set osd_time_alarm = 10
 set osd_alt_alarm = 100
 set osd_vbat_pos = 2060
 set osd_rssi_pos = 2070
 set osd_flytimer_pos = 2454
 set osd_ontimer_pos = 2422
 set osd_flymode_pos = 2412
 set osd_throttle_pos = 129
 set osd_vtx_channel_pos = 200
 set osd_crosshairs = 0
 set osd_horizon_pos = 200
 set osd_current_pos = 97
 set osd_mah_drawn_pos = 111
 set osd_craft_name_pos = 396
 set osd_gps_speed_pos = 66
 set osd_gps_sats_pos = 386
 set osd_altitude_pos = 161
 set osd_pid_roll_pos = 322
 set osd_pid_pitch_pos = 354
 set osd_pid_yaw_pos = 386
 set osd_power_pos = 47
 set osd_pidrate_profile_pos = 418
 set osd_battery_warning_pos = 200
 set vcd_video_system = 0
 set vcd_h_offset = 0
 set vcd_v_offset = 0
 set displayport_msp_col_adjust = 0
 set displayport_msp_row_adjust = 0
 set displayport_max7456_col_adjust = 0
 set displayport_max7456_row_adjust = 0
 
 # profile
 profile 0
 
 set gps_pos_p = 15
 set gps_pos_i = 0
 set gps_pos_d = 0
 set gps_posr_p = 34
 set gps_posr_i = 14
 set gps_posr_d = 53
 set gps_nav_p = 25
 set gps_nav_i = 33
 set gps_nav_d = 83
 set pidsum_limit =  0.500
 set pidsum_limit_yaw =  0.500
 set d_lowpass_type = BIQUAD
 set d_lowpass = 100
 set d_notch_hz = 260
 set d_notch_cut = 160
 set vbat_pid_gain = OFF
 set pid_at_min_throttle = ON
 set anti_gravity_thresh = 350
 set anti_gravity_gain =  3.000
 set setpoint_relax_ratio = 100
 set d_setpoint_weight = 60
 set yaw_accel_limit =  10.000
 set accel_limit =  0.000
 set iterm_windup = 50
 set yaw_lowpass = 0
 set p_pitch = 58
 set i_pitch = 50
 set d_pitch = 35
 set p_roll = 44
 set i_roll = 40
 set d_roll = 30
 set p_yaw = 70
 set i_yaw = 45
 set d_yaw = 20
 set p_alt = 50
 set i_alt = 0
 set d_alt = 0
 set p_level = 50
 set i_level = 50
 set d_level = 100
 set p_vel = 55
 set i_vel = 55
 set d_vel = 75
 set level_sensitivity = 55
 set level_limit = 55
 rateprofile 0
 
 # rateprofile
 rateprofile 0
 
 set rc_rate = 100
 set rc_rate_yaw = 100
 set rc_expo = 0
 set rc_yaw_expo = 0
 set thr_mid = 50
 set thr_expo = 0
 set roll_srate = 70
 set pitch_srate = 70
 set yaw_srate = 70
 set tpa_rate = 10
 set tpa_breakpoint = 1650

E.L.K. · 26-Nov-2017, 07:16 AM

If it is able to lift few inches, that looks like it have not enough power to lift further. I had same symptoms on brushed quad when bad batteries used.

flightmode0 · (This post was last modified: 26-Nov-2017, 08:09 AM by flightmode0.)

Small prop with low kv motor and only 2s?

unseen · 26-Nov-2017, 12:48 PM

Two things:

Please use [ code ] [ /code ] tags (without the spaces) around a CLI dump. It stops your message being many pages long.

3800kv with 2S and 1935 propellers will not generate enough lift for your quad to fly. If it's a 110mm quad, can't you fit larger propellers?

kaitylynn · 26-Nov-2017, 04:13 PM

The motors are likely not adequate, everything else seems robust enough. Your setup is lighter than my Lizzy 95 that has no issue with lifting and or flying with 1935 props. The motors on it are Eachine 1104/6000Kv and about the lowest Kv motors that are common. 3800Kv just seems so low.

shep · 26-Nov-2017, 05:05 PM

(26-Nov-2017, 12:48 PM)unseen Wrote: Two things:

Please use [ code ] [ /code ] tags (without the spaces) around a CLI dump. It stops your message being many pages long.

3800kv with 2S and 1935 propellers will not generate enough lift for your quad to fly. If it's a 110mm quad, can't you fit larger propellers?

Thanks for the tip on the CLI dump. I can't run anything larger. There is right around 1/4" clearance between the front blades and front of the quad.

shep · 26-Nov-2017, 05:10 PM

Thanks everyone! I'm going to pickup a 3S just to see how it does. After that, I'll switch out the motors.

flightmode0 · (This post was last modified: 26-Nov-2017, 05:16 PM by flightmode0.)

Also, I would switch the props. If they are the same props I tried on my first build using 1104 6500kv motors, they were very lacking in thrust even on 3s with the higher kv.

Good luck and don't forget to post a picture of your build. Wink

kaitylynn · 26-Nov-2017, 05:16 PM

You should be able to run 2" props on that setup. It is about the same shape and size as KT-110 and I run GenFan 2045 props with enough clearance. That also runs a 28 amp ESC with 7500Kv motors. Originally started out with 6000Kv motors and it definitely has never has an issue jumping aloft. It really seems you do not have enough motor to rise above the ground effect.

shep · 26-Nov-2017, 06:09 PM

Here's what I have so far. Still need to secure my RX antennas, but I'm still working on it.

Thanks again everyone!

kaitylynn · 26-Nov-2017, 07:32 PM

(26-Nov-2017, 06:09 PM)shep Wrote: Here's what I have so far. Still need to secure my RX antennas, but I'm still working on it.

Thanks again everyone!

I use soda straws as antenna guides. Some use coffee stirring straws. Still others use zip ties and heat shrink tube. There are a bunch of ways. looking forward to seeing how you secure them! Smile

shep · 26-Nov-2017, 09:44 PM

(26-Nov-2017, 07:32 PM)kaitylynn Wrote: I use soda straws as antenna guides. Some use coffee stirring straws. Still others use zip ties and heat shrink tube. There are a bunch of ways. looking forward to seeing how you secure them!

I typically go the zip tie/heat shrink route, but haven't decided yet for this build. The vtx antenna is done with hot glue along the antenna then heat shrink. That method allows you to shape the antenna and even re-heat it to reshape.it.

Oscar · (This post was last modified: 27-Nov-2017, 12:39 AM by Oscar.)

(26-Nov-2017, 09:44 PM)shep Wrote: I typically go the zip tie/heat shrink route, but haven't decided yet for this build. The vtx antenna is done with hot glue along the antenna then heat shrink. That method allows you to shape the antenna and even re-heat it to reshape.it.

[youtube.com/watch?v=wfYZmh5Gsyo&t=332s]youtube.com/watch?v=wfYZmh5Gsyo&t=332s

Glad i see that video, should work great on the Runcam TX200 too!

voodoo614 · 27-Nov-2017, 03:24 AM

(26-Nov-2017, 05:16 PM)kaitylynn Wrote: You should be able to run 2" props on that setup. It is about the same shape and size as KT-110 and I run GenFan 2045 props with enough clearance. That also runs a 28 amp ESC with 7500Kv motors. Originally started out with 6000Kv motors and it definitely has never has an issue jumping aloft. It really seems you do not have enough motor to rise above the ground effect.

His is 3800kv and not 6000kv.

kaitylynn · (This post was last modified: 27-Nov-2017, 03:29 AM by kaitylynn.)

(27-Nov-2017, 03:24 AM)voodoo614 Wrote: His is 3800kv and not 6000kv.

Yes, as pointed out in my original response, #5. Not enough motor with only 3800kv. Was trying to illustrate that those props will definitely fly that model with 6000kv motors.

Login
Email:
Password:	Lost Password?
	Remember me

Possibly Related Threads...
Thread		Author	Replies	Views	Last Post
	Solved SPI V3 ELRS won't bind	nicetomeetyou	5	353	23-Feb-2024, 05:22 PM Last Post: nicetomeetyou
	TBS CROSSFIRE Micro TX	Eyes.fpv	7	222	09-Dec-2023, 12:04 PM Last Post: Eyes.fpv
	Crossfire micro tx v2 problem when updating	Keven741	4	1,589	02-Oct-2023, 11:15 AM Last Post: SnowLeopardFPV
	yaw rotation at lift off	der_huddel	2	216	04-Aug-2023, 06:03 PM Last Post: der_huddel
	Nazgul won't take off.	Helltothena4093	3	227	12-Apr-2023, 06:03 PM Last Post: Helltothena4093