Modelhead is right to suggest moving out and narrowing the angle of vision. You can also use a view camera and use the swings and tilts to modify the perspective. However perfect orthographic projection would require an infinite distance from the object which is just not practical. However you can also jimmy the perspective in photoshop.
In the attached render I photographed one screw head and one each of two types of holes and then used photoshop to twist the perspective for each screw and hole on the mechanism. If I had set my SU drawing to an othographic perspective I would only have had to do that once instead of hundreds of times, but in this case I wanted some perspective.
When I think adirondack chair and components I think individual flat boards or collections of boards on a plane. I would just shoot the the chair square on for each flat surface, give the surfaces some thickness in SU and then assemble. It seems very straight forward to me. But then everything does until I get into trouble.





