Folding drone 300mm

This is my 300mm dron. I modeled him for the following parts:

https://www.banggood.com/BGC-3_1-2-Axis-Brushless-Gimbal-MOS-Controller-with-Mini-GY6050-Sensor-p-957358.html?rmmds=myorder

https://www.banggood.com/100pcs-M34mm-H62-Brass-Knurl-Nuts-DIY-Accessories-p-971077.html?rmmds=myorder

https://www.banggood.com/FlySky-RC-FS-R9B-8Ch-2_4Ghz-Receiver-for-TH9X-Transmiter-p-941157.html?rmmds=myorder

https://eu.banggood.com/Wholesale-Warehouse-CC3D-NAZE32-F3-Power-Distribution-Board-PDB-W