The practical aspects of self-manufacturing and operating quadcopters are described in detail. All stages are considered: from the selection of structural materials and selection of components with minimization of financial costs to software configuration and repair after an accident. Attention is paid to the mistakes that novice aircraft modelers often make. The theoretical foundations of the flight of multi-rotor systems and the basic concepts of working with the Arduino IDE are given in an accessible form. A brief description of the design and operating principle of the GPS and Glonass systems, as well as modern pulsed on-board power supplies and lithium-polymer batteries is given. The operating principle and process of setting up systems, OSD, telemetry, Bluetooth wireless channel and popular Ublox GPS navigation modules are described in detail. The design and principles of operation of integrated sensors and a flight controller are described. Recommendations are given for selecting entry-level FPV equipment, and an overview of daily programs for computers and smartphones used when setting up quadcopter equipment is given. For readers interested in electronics, robotics, and aircraft modeling