Is it possible to implement my own flight controller into a URDF which extracted from solidworks?

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A few notes:

• The URDF simply specifies how to visualize the robot - it does not include any control code or logic.
• For gazebo you can convert your URDF into an SDF file, which tells gazebo how to visualize the robot.
• In addition to your URDF/SDF file you'll actually need to write some code to tell Gazebo how to control the robot. I'd suggest you start by looking at the Gazebo tutorials on building a robot