Advertisement
Quick Links
FlexRC Mini Owl - Extreme FPV Proximity Racing Drone - DIY Build Instructions
This guide will walk you through the detailed build steps using the
FPV Racing Drone DIY Kit
the radio receiver, which is purchased as an add-on to the kit. In our example, we'll be using
the Lemon Rx DSMX Satellite Receiver. The instructions also include the installation of an
optional Pololu voltage regulator.
The Mini Owl can be built as a pusher (motors "upside down") or a standard (motors right side
up) quadcopter. We're building ours as a standard quadcopter. There is very little difference in
the two builds other than motor directions and prop mounting.
The Kit:
●
FlexRC Mini Owl frame with hardware
●
Omnibus Mini F3 Flight Controller with OSD
●
Tiny 10A 4 in 1 – Cicada – BusyBee2 BLHELI_S ESC
●
1pc of XT30 battery connector
●
1104 6500kv motors
●
2pcs of
H QProp 1.9x3x3 Durable 3-Blade Propeller (2CW, 2CCW)
. The kit contains everything you need to build your Mini Owl except
F lexRC Mini Owl Extreme
1
Advertisement
Summary of Contents for FlexRC Mini Owl
- Page 1 Lemon Rx DSMX Satellite Receiver. The instructions also include the installation of an optional Pololu voltage regulator. The Mini Owl can be built as a pusher (motors “upside down”) or a standard (motors right side up) quadcopter. We’re building ours as a standard quadcopter. There is very little difference in the two builds other than motor directions and prop mounting.
- Page 2 ● DIATONE 600TVL Miniature Camera ● Flexible Mini Camera Adjustable Mount ● Tiny FPV Kit ● 5V Mini Buzzer for FPV Micro Racing Drones ● Thin battery strap Step 1: Install the motors and center stack screws Locate the bottom plate and mount each motor using the included motor mount screws. It is best to use all four screws to avoid having a motor pull out in a crash but, for now, it’s fine to just install two screws.
- Page 3 the XT30. Once the XT30 is installed and cool, slide the heat shrink over the copper connections and shrink in place. You can now place the 4-in-1 ESC over the nylon screws. Place it face down so that the plastic servo connector plug is on the bottom.
- Page 4 Step 3: Solder the motors and FC power leads Carefully route the motor wires under the ESC so they wrap around the center screws and around the bottom of the ESC. This routing method will keep the motor wires nice and neat and will help avoid being snagged by a prop..
- Page 5 Step 4: Connect power and ESC leads to the Flight Controller Identify the top and bottom of the Omnibus Mini F3 flight controller. The top is the side with the USB port and the directional arrow which indicates the front. Turn the flight controller over and solder the power leads that you soldered to the battery leads in Step 3 to the B+ and B- pads on the bottom of the flight controller.
- Page 6 Install spacers on each of the four nylon center stack screws. Turn the flight controller over so that the bottom faces the ESC and mount it onto the nylon center stack screws. Ensure the white direction arrow on the flight controller faces the front of the frame. Locate the servo leads coming from the ESC (orange, blue, yellow, green).
- Page 7 Step 5: Install the Pololu voltage regulator (optional) Because there is a chance that the flight controller’s onboard BEC will not always provide P ololu 5v voltage regulator enough power for the video transmitter, we are going to install a parallel with the flight controller’s 5v rail.
- Page 8 Step 6: Install the FPV gear We will be using the T iny FPV kit w hich consists of a and an Diatone 600TVL Camera E achine ATX03 Super Mini 5.8G 72CH 25mW/50mw/200mW Switchable FPV Transmitter . We will be routing the video signal through the Omnibus Mini F3 flight controller to take advantage of its OSD capability.
- Page 9 Examine the Eachine ATX03 video transmitter and identify the red and black pair of wires that terminate in a 2-pin connector and the set of red, black, and yellow wires that terminate in a 3-pin connector. The red and black pair is use to power the vtx and will be directly soldered to the flight controller.
- Page 10 The FPV system is now installed and will utilize the native OSD of the Omnibus Mini F3 flight controller. Step 7: Install the radio receiver and buzzer Because we are using a Lemon Rx DSMX Satellite Receiver, we can simply plug it into the Spektrum port on the flight controller.
- Page 11 Step 8: Final assembly Place the VTX on top of the flight controller stack and place the 3D Printed bracket over the nylon center stack screws. Turn the screws careful to thread them into the 3D printed bracket and tighten over the VTX. This will secure the entire center stack and also facilitate easy removal of the top plate.
- Page 12 Slip the battery strap into whichever slots you prefer to use to secure your battery. Install the top frame plate onto the standoffs. Go back and install all motor screws, using blue Loc-tite for security. The Mini Owl Extreme is now ready for flight controller set up and the maiden flight!