This is a new uniquely designed quadcopter frame that incorporates large aluminium structure supports. It does have good features like an antenna holder, lots of internal space, and lots of frame strength to protect your electronics. It has some points that need resolved. 8 of the screws are really too short. The arms don't touch each other to help provide extra support. The open space between the main plates is not enough to run a battery strap between them. The frame could probably use more than just the single screw and nut through each arm to gain a little more strength.
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You can get your own here:
Realacc D215 Frame:
Realacc D215 Kit:
10mm 3M screws:
DQuad Obsession .stl files: /