I recently made some improvements to my previously designed super cheap racing drone. Previous version was converted to a pusher configuration to maximize the cheap electronics performance.
Having the motors in a pusher configuration helps reduce drag caused by a hefty frame. To further improve the design I modeled a new more compact 3D printed canapie which also contributes to improved flight performance. To make the THICC frame even more indestrucable I also 3D printed bumpers mounted at the end of each arm.
I designed a complete enclosure to house my previously designed tpa3116 2x50w amplifier board.
The design includes a 10A fuse to protect the amplifier board in case of a short-circiut or a reverse polarity of the power supply. I also fitted the amplifier ic with a heat sink which help the amplifier to achive the desired 2x50W of output power.
The enclosure is equipped whits several 5mm banana plugs for power transfer and 2 pairs of audio signal jacks.