The frame is weak and heavy. Steel truss design is better. Square or round steel tubes are much better. But the strongest and lightest design is something like a shell around legs - it has a much better load distribution.
The frame is too complicated and expensive for the mass production. You actually don't need a cnc milling machine to create a good frame with few bars and joints.
Steel - is the best material for the frame. Not aluminum.
The frame is weak and heavy. Steel truss design is better. Square or round steel tubes are much better.
But the strongest and lightest design is something like a shell around legs - it has a much better load distribution.
The frame is too complicated and expensive for the mass production. You actually don't need a cnc milling machine to create a good frame with few bars and joints.