Cheapest drone frame

Here is cheapest drone frame solution. Think out of the box or think ABOUT the box :) https://youtu.be/EwrLNpA1ggE Advantages: 1.box bottom is wing area 2.box is lightweight and strong frame 3.box is reusable 4.the electronics can be placed in the box, and it is protected 5.angular positioning of the box will save battery energy unfortunately I was not able to download STL files from Generate webpage So I have inventor optimized files in 3d model but original should be in Generate fast and awesome webpage. https://generate-de.frustum.com/?source=grabcad#/workspace/1197/scenario/3387 https://generate-de.frustum.com/?source=grabcad#/workspace/1196/scenario/3385