DIATONE OFFICIAL - DIATONE GTR 249/249+/349 HD V2 MK2 Bottom Plate /Damping Accessories Package
It's diatone GT-R 349 frame in DXF if someone want to modify it of place a 25.5mm stack or make it from 3.5 or 4mm carbon - https://drive.google.com/folderview?id=103eIN17pC3_57K2n5T_kCc5ieQ4vmWhs : r/Multicopter