Fig. 1: The front view of our Tinkercad bridge design.
Before we physically built our bridge, we wanted to model it in Tinkercad and ModelSmart. While our ModelSmart design was more catered to our actual design, our Tinkercad design was helpful for scaling our design and for determining how everything would fit together in the best possible way. Figures 1 and 2 depict the Tinkercad design. As you can see, there are solid planks for the superstructure and legs of the bridge. We decided to make all of these trusses in our actual design. This would make our bridge less prone to breakage. Additionally, we wanted to make sure that our under supports would still pass the one foot minimum distance between the table and the legs of our bridge. We demonstrated this in Tinkercad. We also decided to add trusses to the triangles at the end of the superstructure to have a more uniform superstructure and give the bridge more support. Finally, we realized from this design that our base wasn't super strong. So, from this design, we were able to create a stronger and more secure base.
Fig. 2: The side view of our Tinkercad bridge design.
Fig. 4: The side view of our 3D printed Tinkercad design.
It was very interesting to recieve our 3D printed models after testing our bridge. We tested this model bridge with force downwards from our hands and found the most pressure points in the legs of the bridge. This is exactly how our bridge broke in real life, and it's interesting how that was reflected in our Tinkercad model.Â
Fig. 5: The front view of our 3D printed design.