A beautiful drawing is not a picture!

A drawing is a conditional graphic representation of an object with an exact ratio of its dimensions, obtained by the projection method.

A drawing is a type of design image that is needed in order to accurately depict any product (in our case, this is a roofing node). This is where accuracy and precision are important.

This is not a picture that can be drawn by hand.
It is important to emphasize and highlight all the details. Show hidden contours of the parts to be joined.