====== Cityflitzer DIY Manual ======

In this manual, we will guide you through the complete build process of the Cityflitzer drone.

Safety Notice
This is not a toy. Fly responsibly and always follow proper safety procedures.
When working on the bench:

Never install propellers

Always use a smoke stopper

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===== Step 1 – Battery Pads & Top Plate Preparation =====
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• Mount the TPU battery pads using M2 washers and M2x8mm screws

• Ensure the threaded inserts on the top plate are facing downwards

===== Step 2 – Arm Installation =====
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• Flip the top plate over

• Install the arms in the orientation shown above

===== Step 3 – Middle Plate & TPU Mounts =====
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• Install the middle plate

• Mount the TPU RX antenna mount using M2x8mm screws

• Mount the TPU VTX antenna mount using M2x8mm screws

• Push M2x20mm standoffs into the designated horizontal mounting holes

===== Step 4 – Motor Installation & Wire Routing =====
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• Install the motors using thread locker

• Secure the motor wires firmly to the arms using tape

===== Step 5 – Capacitor Preparation =====
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• Cut the capacitor legs down to approximately 2mm

• Solder wires to the capacitor legs

• Apply liquid rubber to all exposed solder joints

===== Step 6 – Flight Controller Coating & Soldering =====
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• Pre-assemble the side plates and TPU bottom cover

• Use M2x20mm standoffs and M2x4mm screws

• Use this assembly to measure correct wire lengths, do not fully mount yet

• Apply conformal coating to the bottom side of the FC

• Allow the coating to fully dry

• Mount the FC to the frame using M2x12mm screws

• Solder the motor wires to the FC

• Solder the main power wires to the FC

• Solder the capacitor to the FC

Important:

• Leave enough slack in the motor wires

• Ensure capacitor wires are the correct length

• The capacitor must fit into the TPU bottom cover with slight wire slack

Tip:
Conformal coating is clearly visible under UV light.


===== Step 8 – Receiver (RX) Preparation =====
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• Solder RX wires with approximately 4cm wire length

• Bend the antenna slightly so the bind button remains accessible

• Heat-shrink the entire receiver assembly

===== Step 9 – VTX Installation =====
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• Mount the DJI O4/O3 Air Unit to the TPU VTX mount using M2x4mm screws

• Install the VTX on top of the FC

===== Step 10 – VTX Antenna Routing =====
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• Open the VTX housing carefully

• Disconnect the UFL connectors

• Route the antennas through the TPU VTX antenna mount

• Reconnect the antennas

• Close the VTX housing

===== Step 11 – VTX & RX Connections =====
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• Connect the VTX to the FC

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• Connect the receiver to the FC

• Install the RX antenna into the TPU RX antenna mount

===== Step 12 – Pod & Electronics Installation =====
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• Install the pod onto the frame using M2x4mm screws

• Install the capacitor into its TPU mount

• Install the receiver into its TPU mount

===== Step 13 – Camera Installation =====
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• Install the VTX camera using M2x4mm screws
• Close the Bottom TPU cover with a M2x8mm screw through the latch in the front.
===== Step 14 – TPU Battery Mount =====
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• Install the matching TPU battery mount onto the top plate

• Use M2 washers and M2x10mm screws

===== Step 15 – XT30 Connector Preparation =====
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• Solder the XT30 PCB board to the male XT30 connector

===== Step 16 – XT30 Wiring & Final Assembly =====
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• Insert the XT30 connector into the TPU battery mount

• Cut the power wires to length

• Ensure wires are not under tension

• Strip and pre-tin the wire ends

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• Solder the wires to the XT30 connector

• Secure the mount using M2x8mm screws

• Apply liquid rubber to all exposed solder joints

===== Final Step – Ready for Setup =====
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Congratulations!
Your Cityflitzer build is almost complete.

All that’s left:

• Betaflight configuration

• Minor ESC settings

• Install propellers

And you are ready to rip!