Creating a complex figure


I was sent a graphic draft of a chair made with MAYA.

I would like to reconstruct the components for the industrialization process, but my knowledge of SHAPR3D is evidently still limited.
I understand that I should proceed with the “project” function, but creating the body is difficult and is causing me a lot of frustration.

Can anyone offer a suggestion on how to proceed?
Thank you all,
Roberto from Italy

I would use the sweep tool to make these.

Start by sketching the profile of the tubing in the front plane, then switch to the side and sketch the path that the tube profile should follow.

You can start here and here.