Table of Contents

Clayton and Charity's Bus Stop Seat

Description of Goals

Logic Diagram

CAD Model

final_final.catpart

Power Point

clayton_and_charitybus_stop_seat.ppt

Master Seat Geometry Explained

Occupancy Level—> Overall Length of bench. For each additional person, bench got 18inch longer to accommodate the new person.

Temperature—> The six slits in the back rest of chair fluctuated in width depending on the temperature

Person Height—> Person height dealt with the dimensions of parts A,B,G,H,E in drawing above.

Person Weight—> Person weight dealt with thickness of parts I,D,C,F as well as the thickness of the seat post which is unlabeled.

Person age—> Person age changed the slope of G measured by theta theta3 with respect to the vertical axis.

Waiting time—> To make the chair more comfy, theta1, theta2, and the length of A all morph depending on waiting time. Also, the angle between G the seating surface and the seat back also changes.

Possible Configurations

Design "Challenges" and What We Learned

=== Slope is an Issue ===

Because the slope can be sloped, people might slide down the bench into one and other. A possible solution would be to have the design step down with flat section to account for the slope, or the addition of individual armrests to keep people in place.

=== Hard to Sit Down ===

As wait time increases the foot rest part extends and and the angle becomes greater making it more like a recliner. This makes it very hard to actually sit down on the seat unless you are approaching from the very edge of the seat.

=== Designed for profile ===

Our initial geometry was designed as a profile and when extended into a massive bench looses much of its aesthetic appeal. One thing that would help somewhat, would be to get rid of the continuous seat post, and instead have a post that instantiates itself every couple feel. This would help the bench feel lighter and less bulky.

===Site Problems ===

Due to the way the site file was created, we had trouble getting our bench positioned on the site itself and while it will still adjust for a change in curvature or slope, it has no relationship to the curb or the site width. In a future model we would like to resolve these problems.

Why Chose Our Design?