All about metal legs

To attach the legs to the seat, an additional component was needed. This piece will hold the legs together at the top and be fastened to the seat's timber frame with some screws.

The timber frame looked like this from the bottom >>>

The timber frame looked like this from the bottom. The piece would need to fit within this frame and be hidden from view. 

The initial design looked like this. However, there were concerns that there might be too much excess weight. So I redesigned it. To do so, I CADed up the timber frame and printed it out one-to one to use as a template. 

I then positioned scrap metal bars such that they fit within the frame, and at the same time will intersect with the points of contact with the steel rods. 

And I ended up with the above configuration. This is sheer function without form. It was not designed to look pretty (since it's going to be hidden anyway). But by coincidence, I happen to quite like how it sort of mimicks the polygonal shapes of the legs. 

Now we just had to weld them all together. Had some help from Andrew this time. 

I then cleaned up the blobs from the weld with an angle grinder. And to finish it off, some sanding with the file. 

And done!