TBS GEMINI Mini FPV Hex Manuel utilisateur

TBS GEMINI Mini

FPV Hex

Miniature hexacopter for fast

FPV flight and multirotor racing

Revision 2014-12-02

The TBS GEMINI is the latest generation of

mini racer multirotors. Its revolutionary

design with forward tilting motors and

aerodynamic canopy as well as fully

integrated yet modular electronics turn it into a beast that will dominate any race event.

Optimize your setup for HD filming with a Mobius or as the ultimate racer. Both setups are capable of

operating on 3S and 4S setups, depending on your skill level and speed requirements. It is versatile enough

to become your take-anywhere, fly-anytime multi rotor and at the same time rip through trees and leave the

competition in the dust at races.

The frame is based on a design by award-winning pilot and one of the leading innovators in multi rotor

design, William Thielicke (aka Shrediquette). TBS added its own secret-sauce with a fully-modular, crash

friendly ESC and flight control installation. We get the best of both worlds: a tightly integrated component

layout that optimizes weight efficiency, but also repair-friendliness in case of crashes. And let's face it, these

things are made for crashing.

Assembly takes a few minutes as you add props, choose between the race and film setup and secure the

canopy. A full slew of spare parts are available to repair the hex after a crash.

Key features

•Aerodynamic canopy for stability in forward-flight

•Forward-tilting motors for efficient, high speed flight

•Built-in FPV camera

•Optional Mobius HD camera (film canopy)

•CORE OSD/power supply with integrated current sensor

•Ready for long range FPV

•Stacked modular TBS 4A ESCs

• High-quality T-motors with vibration dampening

• 4-inch propellers

•TauLabs Quanton-based flight control

•Crash-friendly, yet integrated layout

Before we begin

Thank you for buying a TBS product! The TBS GEMINI is a new racing multirotor aircraft from Team

BlackSheep (TBS). It features the best design practices available on the market to date, providing a great

flying experience and incredible FPV characteristics.

Please read this manual carefully before assembling and flying your new TBS GEMINI hexacopter. Keep this

manual for future reference regarding tuning and maintenance.

Disclaimer

Our request to you; the aircraft may not be used to infringe on people's right to privacy. We have designed a

toy with mind blowing capabilities. It is your responsibility to use it reasonably and according to your

experience level. Use common sense. Fly safe. You are on your own. TBS has no liability for use of this

aircraft.

●Locate an appropriate flying location

●Obtain the assistance of an experienced pilot

●Practice safe and responsible operation

●Always be aware of the rotating blades

●Prevent moisture

●Keep away from heat or excessive amounts of sunlight

Specifications

Type:

FPV racer hexacopter

Power:

3S 1700mAh or 4S 1050mAh Lithium-ion Polymer battery, JST-connector

Motors:

6x 1806 class, 2100kV, 96W, 22x22 mm mount, M4 shaft, 10° forward tilt

Propellers:

6x 4x4.5-inch, 2-blade propellers (3xCW, 3xCCW)

Speed controllers:

TBS 4A Bulletproof ESCs, stacked modular configuration

Flight controller:

TBS COLIBRI flight controller, powered by TauLab codebase

RC receiver:

5-channel minimum, PPM, S-BUS, D-BUS or PWM

FPV camera:

32x32mm board camera, 2.8 mm lens, TBS CHIPCHIP V2

FPV transmitter:

TBS 2.4 Ghz or 5.8 GHz A/V transmitter, TBS UNIFY 5G8 200mW

HD camera:

Mobius HD ActionCam (available separately), vibration dampened

Canopy:

Racing (aerodynamic, light) or Film (protects camera, extra battery space)

Flight time:

Approx. 10 minutes

Speed:

Max. speed 80 km/h

Distance:

up to 2km range (and return)

Working temperature:

0 - 40°C

Size:

315 mm / 8.5-inch, diagonally

Battery spec:

25C+, max. 48(W) x 70(L) x 19(H) mm, 110 grams

All-up-weight:

340 to 370 grams, fully loaded

Kit contents:

(base kit)

1x Assembled TBS GEMINI main frame

6x TBS BULLETPROOF 4A ESCs

1x TBS COLIBRI Flight controller

1x TBS CORE PNP25, pre-configured

1x TBS CHIPCHIP V2 camera

1x TBS UNIFY 5G8 200mW video transmitter

1x TBS 3S 1700 mAh LiPo battery

1x Racing camera mount

1x Racing VTX mount

1x VTX extension antenna holder

1x Racing canopy set

1x Film canopy set

1x Bag of light-weight nylon motor screws

6x TBS T-motor 2100kV Brushless motors

8x 4x4.5-inch propellers with adapter rings (4 pairs)

The TBS GEMINI

On the GEMINI hexacopter, the motors are tilted 10° forward in order to decrease the angle of attack of the

body in forward flight. The whole arm is deformed in order to achieve the desired forward tilt. This

decreases the net aerodynamic drag in fast translational flight. In a hover the body will lean backwards but it

will level out as it moves into forward flight. Additionally, the canopies help to reduce the drag coefficient of

the copter. The effects has been measured in a wind tunnel using a two-axes force balance, and the results

show that the drag is reduced by something around 30%.

The handling of the copter is not affected as long as the IMU is aligned parallel to the propellers (you can also

rotate the IMU by software via calibration).

The flight controller is based on the TauLabs Quanton platform and TBS contributes back to the project. The

controller has two modes. In "stabilize" mode (angle control) is auto levels and stabilized itself in flight, while

in "heading hold" (angular velocity control) it will stay in a particular angle until the pilot makes corrections,

very much like “manual” mode. There are a lot of other interesting features.

The TBS GEMINI has a two part canopy with a larger volume. This allows for using large batteries, a broader

range of video transmitters and larger receivers (hence people can install the gear they want). We selected to

include some very nice and light custom T-motors, these are made to precision with high quality bearings.

The ESCs were also developed specially for the GEMINI. They are located centrally on the frame in a stacked

rib formation for cooling and easy access. There are no LEDs on the canopy as of writing, but LEDs can easily

be added to facilitate LOS flight.

Maybe one of the most important factors is the 3S to 4S capability. The ESCs are able to handle both with

ease to cater for long fight time or high speed. When using the custom TBS ESCs on 4S, expect an

exceptionally fast forward flight and a rocket in ascend.

IN PACKAGE

The following is included in the base TBS GEMINI kit. Replacement parts are available online, if needed.

1x Assembled GEMINI frame

1x Set of film canopy - top/bott.

1x Set of racing canopy - top/bott.

8x 4x4.5-in propellers (CW, CCW)

2x Canopy metal strips

1x Set of racing carriage kit

1x VTX cable extension holder

1x PPM header cable for RX pwr

and PPM/S-BUS/D-BUS

1x Bag of light-weight M2 nylon

screws for motor mounts

1x TBS LiPo pack - 3S or 4S

1x SpiroNet Grey RHCP RP-SMA

antenna

1x Cement glue (“gooey”) to lock

parts and electronics for racing

1x GEMINI carrying case

1x Sheet of GEMINI stickers

Quick Start Guide - BNF set

The following steps will get you setup and ready to fly quickly. It is a condensed version intended for

experienced pilots. Each step is elaborated in more detail in this manual if you are new to this.

You will need to install a R/C receiver, configure the COLIBRI flight control, potentially adjust VTX frequency,

insert the battery and install the propellers.

This section requires the following equipment.

●Desktop or laptop computer for configuration (OS X/Win/Linux)

●5-ch R/C Radio transmitter and receiver with PPM/S-BUS/D-BUS

●5G8 FPV receiver system or FPV goggles

●Optional, Mobius HD camera (when using the film canopy)

Let’s go!

1. Connect the supplied PPM cable to the R/C receiver and the other end to the header on the I/O board

marked “PPM/CH1/UART2RX” - configure the receiver to output PPM/S-BUS/D-BUS

2. Depending on the R/C receiver, install it under the I/O board or over the CORE PNP25

3. Install the latest TauLabs GCS configuration software and connect a micro-USB cable to the COLIBRI

flight controller

4. (for S-BUS receivers only!) Open TauLabs GCS, open “Configuration”, go to the “Hardware” view,

change “RcvrPort” to “Disabled” and “UART2” to “S.BUS” - unplug all power to reboot

5. Turn on the radio, create a new model preset, attach the video transmitter antenna, connect a LiPo

battery to the frame, bind the receiver, open the “Input” view (in Taulabs GCS, under the

“Configurations” tab) and run through the “Configuration Wizard” to map the controls and switches,

go to “Arming Settings” and change it to “Yaw Right”, flip the flight mode switch to “Pos. 1 Leveling”

6. Now, cut the metal strips to 10 mm pieces and bend two of the ends to form a half-triangle, key the

location of the magnets on the side of the canopy and glue in place using superglue (see p15 for

details)

7. Cut away a small window on the video transmitter for the configuration switches and set it to one of

the supported frequencies for your video goggles

8. Mount the Mobius HD camera on the bottom of the frame using the velcro pad and rubber bands or

black tape, configure picture orientation to be upside-down

9. Insert the LiPo battery using the preinstalled elastic band, with the connectors facing forward

10. Prepare the propellers with the correct M4 adapter rings and install them with the text facing up,

rotating in the direction shown on the frame arms

11. Put on the canopy and antenna, connect the LiPo battery, start the Mobius recording and go fly!

R/C receiver

Install R/C receiver

A small or micro R/C receiver will fit underneath the I/O board, with the antennae feeding down the rear

arms. If the receiver is too big, mount it in the front section on top of the CORE PNP25 unit or under the

frame. Try to get as much separation between the R/C receiver- and VTX antenna as possible.

A short list of TBS recommended PPM/S-BUS/D-BUS receivers:

●FrSky D4R-II: Enable CPPM by shorting/jumping signal pin ch3 and ch4, now ch1 will output PPM,

ch2 will also output RSSI

●EzUHF 4ch Lite: Use the ImmersionRC Tools to make ch1 output PPM, the unit barely fits under the

I/O board and might require extending the SMA connector 10-15 mm

●DJI Phantom 2, DJI DR16 Rx: To use a DJI receiver, simply connect the supplied cable on the D-BUS

header and configure TauLabs GCS to use S-BUS -

Note that Phantom Vision/FC40 uses 5G8 control

and are thus not compatible with 5G8 video systems. All other DJI systems are on 2G4

For all other receivers, inspect the manufacturers instructions to identify the supported protocols,

dimensions and layout of output header(s). Traditional PWM channels for all controls is possible but requires

some planning, see section later in the manual.

Power is provided by a 5V regulator on the frame. Use the supplied PPM cable to connect power to the R/C

receiver. If you consider using a Spektrum satellite receiver, see the installation section later in the manual.

Receiver under I/O board

Be careful to cover up any exposed metal if there is a chance of short-circuiting anything on the I/O board.

1. Disconnect the red JST battery connector to the I/O board

2. Gently wiggle the front and back of the board to remove it from the sockets, be sure not to bend the

pins

3. Place the receiver between the three header sockets on the GEMINI board with antennae facing the

rear

4. Reposition the I/O board over the headers and press firmly to ensure all the sides are properly

installed. It is important that all the headers fit tightly into the sockets - no bulging/pushing. Connect

the other end of the PPM cable to the I/O board.

5. Strip the antenna to the arms, cut a slot in the top canopy to avoid the cable from being sheared off

Receiver under the frame

If the receiver is long and has a slim profile (<8 mm), it will fit between the battery and the the frame.

1. Connect the PPM cable to the receiver and it it through to the top side

2. Add a piece of adhesive foam tape to the receiver and position it on the rear end of the frame

3. Align the antenna connector to the edge of the frame and connect the PPM cable to the I/O board

4. Add two foam pads and a foam sheet between the battery for protection and cushioning

5. Cut a notch in the bottom canopy for the antenna connector and antenna

An alternative way to install the EzUHF Lite, is to install it under the I/O board and modify the VTX plastic

support to let the PPM cable through. This lets the receiver sit tightly and with a SMA extension adapter will

put the antenna connector out on left-rear side.

Bind radio and receiver

Create a new model for the GEMINI if your radio supports presets. Pair your R/C radio and receiver as

instructed for your particular setup (FrSky, Futaba, Spektrum, DJI, EzUHF).

The following is a quick binding summary of the most popular radio system.

●FrSky Taranis: On radio, open Model Setup, select D8 (D4R-II) or D16 (X4R-SB) and enter Bind mode

- On the receiver hold the R/S button while applying power - rapid flashing indicates bind complete

●Futaba: Turn on the radio, when the RF signal LED is solid, press the “ID SET” button on the receiver

for two seconds - the LED on the receiver should turn solid when done

●Spektrum: Insert the binding plug on the receiver, on the radio hold the bind button on the back

while turning on the radio or use the bind menu - the receiver LED should stop flashing continuously

●DJI: Power the receiver, press the bind button, turn on the transmitter - the receiver LED should turn

off when complete

●EzUHF: Toggle the transmitter power switch to Low, hold the bind button while turning on the

transmitter, turn on the receiver and hold the bind button on the receiver for 5 seconds - the

transmitter should stop beeping

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