CINESTAR,  Droidworks, Hoverfly, Microcopter, DJI S800, DJI S1000, DJI S900 3 Axis Brushless GIMBAL system & Steadicam for RED EPIC Pro Users.
This Gimbal will fit Cinestar, droidworks, hoverfly with no modification  & work with any large multi rotor that will lift 25lb an  more.


1. Custom gimbal with large motor 4 x Tiger RC GB85, GB90, ipower Gimbal Brushless Motor GBM8017-120T , GBM8108-90T , GBM8028-90T .
1BG004. 3 x ipower Gimbal Brushless Motor GBM8017-120T , GBM8108-90T , GBM8028-90T, Tiger RC GB85, GB90 for red epic camera gimbal.
1BG003. 2 x iPower ipower Gimbal Brushless Motor GBM5108-120T & 2 x ipower Gimbal Brushless Motor GBM8017-120T , GBM8108-90T , GBM8028-90T, Tiger RC GB85, GB90 Gimbal motor.
2. Bearings on all 3 Axes Pitch, Yaw & Roll
3. Gimbal 55 degree on Roll axis left right (can be modified)
4. Gimbal 360 degree on Pitch axis left  up down
5.  Gimbal 360  degree on Yaw axis around
6. Landing gear  with motor cage in the Center hub including barins fit 5208/5206 motor
7. Compatible with all 2 Axis, 3 Axis, 8Bit & 32Bit  Brushless controllers

Load Weight (Reference Value): 3.5-4kgs
Max Controlled Angle:
Pan axis: +-270°
Tilt axis: +-360°(adjustable)
Roll axis: +-55°
Net Weight without electronics: 1.98kgs Inner size: width 200mmheight 200mmlength 100-175mm(adjustable) 
Carbon fiber Matt, 25mm 3k Carbon  Fiber tube Matt, height , width, length, color black

Motors Specification BG004 TILT, ROLL, YAW  & BG003 ROLL, YAW model:
Model NO.:
iPower Gimbal Brushless Motor GBM8017-120T (suit for Red Epic,Black magic )
iPower Gimbal Brushless Motor GBM8108-120T (suit for Red Epic,Black magic )
iPower Gimbal Brushless Motor GBM8028-120T (suit for Red Epic,Black magic )
Tiger Motor Gimbal Brushless Motor RC Tiger GB85  (suit for Red Epic,Black magic )
Tiger Motor Gimbal Brushless Motor RC Tiger GB90  (suit for Red Epic,Black magic)

Model NO.:GBM8017-120T
Copper wire thickness: 0.29mm
Configuration: 24N22P
Pre-wound turns : 120 turns
DC resistance (ohms): 14.7
Motor dimension: 90*13mm
Mounting hole (Top/ bottom ) : 52,33mm
Camera range: Red Epic,Black magic or similar size camera!

Motors Specification TILT BG003:
Model NO.:GBM5108-120T
Motor Dimensions:60x24mm
Stator Dimensions:51x8mm
Copper wire(OD):0.18mm
Resistance:12.6 ohms
Wind type and termination method:Star style
Pre-wounded with 120 turns,5.0mm shaft
Flexible Mounting Holes: Bottom mounting holes: (3 holes) 32mm center to center,(4 holes)25mm center to center
Top mounting holes: (2 holes)12mm center to center,(3 holes)17mm center to center
Camera range: 800-2000g

Begin To Use Your New Brushless Gimbal:
1. Assembly 
Put parts together do not tighten the clamp bolts are facing upwards press  nuts downwards except for center cage of the landing gear. 

2. Fitting should be loose You will tighten after adjusting the parts to  level "using a level" in X and Y axis. After you find the level point hold it  and tighten the 25mm clamps till joint no longer moves. All Joints must be level  on there own plane.


Set up for use:
1. Find the center of gravity
Move the camera tray assembly to the center of the frame , attach  camera. 
Move rear tray assembly left to right until is balanced (not tilted toward  the ground left or right on the Roll Axis) not touching the ground on either end  of the camera tray. when you're happy tighten the clamps on rear Roll  assembly.

2. Balancing the camera Roll
Move the camera forward or backward in its tray until it is balanced with  the tilt Axis at 90 degrees or as much as possible. when  you're happy tighten the clamps on Tilt Axis assembly  & camera tray.

3. Balancing the camera Tilt
Your Camera should be balanced, it should not tilt  left or right  up or down when you position the camera in it's  tray. With no power to the controller the camera should remain level when moving the gimbal around.

Connecting the controllers:
32Bit Alexmos Plug and play except power .
8Bit Alexmos 
Alexmos setup

IMU placement:
Tilt Bar use longer M3 bolt.
Roll Motor cage use longer M3 bolt
The controller bolts to the back of the roll cage not directly on RedEpic Gimbal ! on BG004, BG003 to a CF plate then the CF plate bolts to the back of the roll cage. your cage should look a little different but it is the same design you will have 4 holes that fit exactly to the stand offs & controller.


Software Additional resources for Alexmos:

32 BIT Alexmos controller:

32 BIT software Download:

Documentation Please Read :


GUI (Windows, OS X, Linux): (5Mb 16.08.2014)
User Manual (English): SimpleBGC_32bit_manual_2_42_eng.pdf (764Kb 16.08.2014)

  • 4xPWM servo output with adjustable rate to output virtual channels decoded from RC input, or driven by Serial API
  • PID auto-tuning
  • Adaptive PID gains
  • Digital filters to remove resonances: 3 x Notch filters, 2nd-order low-pass filter
  • Bug fixed: upside-down settings lost after switching to different profile
  • "Frame upside-down" command now inverts RC control for YAW, together with inverting YAW motor and rotating second IMU
  • Bug fixed: should  ignore CMD channel during system init
  • MOTORS_ON command resets system to home position
  • New option for second (frame) IMU: "Below YAW + PID source". It means, if Frame IMU is mounted below YAW motor, it can be used as data source for PID controller, and in some cases can give better result, than main IMU.
  • (GUI) UI elements re-arranged to adopt new settings and make groupping more consistent
  • (GUI) Separate LPF setting for RC and Follow Mode
  • (GUI) New setting "RC Inverse" (you can use it or switch Min. and Max. angles, as before)
  • Last used profile is saved as default when switched by service button, RC CMD command of from GUI.
  • Bug fixed: s-bus fast mode was not decoded correctly

8 BIT Alexmos controller Board ver. 1.0 to 3.0 :

Documentation Please Read :


Firmware: SimpleBGC_2_40b7.enc.hex (85Kb 7.03.2014)
GUI (Windows, OS X, Linux): (5Mb 7.03.2014)

  • Bugfixes:
    •  Serial API, CMD_CONTROL.SPEED_MODE did not worked
    •  Sum-PPM input (FrSky and may be others 8-channel) was conflicted with PWM inputs from flight controller
    •  Sometimes YAW axis may go wrong when pitching camera up or down in the Follow mode.
    •  "Swap RC ROLL<->YAW" menu command did not saved new assignment into EEPROM
    • (GUI): When saving Profile 2, 3 to file, actually Profile 1 was saved
  • Allow to set RC ANGLE mode (i.e. proportional control) in Follow mode, and for YAW axis.
  • Follow SPEED range reduced 2x times to get finer control near low values.
  • If motors were turned OFF before ACC and GYRO calibration, they keep their state after calibration finished (otherwise it was problem to make fast 6-axis calibration)
  • After executing 'Motors ON' command, reset gimbal to home position
  • More stable work with low serial speeds when airlink connection is used (3DR modems, etc). In this case, its recommended to reduce frame rate in the Realtime Data tab to not freese the program.

Additional resources :

Analog Joystick DYS:

Analog Joystick: PMW1 and PMW2 can be connected with any port from A0~A4. User just needs to set the corresponding interface from firmware.

Connect pin define: (main board connected with extension board)

1. After main board connected with extension board, please connect power again.
2. After connected with extension board, 3-way switch is not applicable to control selection. Control gimbal through serial port only. (User needs to set BUAT rate 9600 through firmware).
3. PMW1 and PMW2 are both  output same signal. Select signal through up-down port of extension  board. Default time 1.5ms high level, adjustable from 1ms~2ms. No output under normal circumstances unless pressing joystick of main board.

BGC firmware upgrade to 2.3
Upgrade firmware of BGC 2-axis from 2.2 to 2.3. Do nothing with the 3rd axis.

1. Activate SimpleBGC_2_3b5.enc.hex
2. Select FLASH to start installing
3. Successful installing balloon, connect controller board and set  parameter according to your motor. (The parameter is varied according to different motors)
4. Connect to remote control, done!

Before connecting to controller, turn the 3-way switch to middle. Upgrade  firmware only after connecting to power and blue LED stop flashing.

Recommended operation:
After adjusting parameter, disconnect power. Connect to controller, and  connect power. After sensor initialization, green LED would stop  flashing and light up, and upgrade.

-1?The source  code:
-2?Debug software  and firmware download:
-3?USB computer  driver download:
-4?The motor  information:
-5?Detailed  information, please understand the website: