Before constructing our physical bridge, our group constructed a 1:1 replica online on a software called Model Smart 3D. Utilizing this software, we created a bridge using numerous balsa wood members and joints in a prat truss layout. In order to properly place and measure distances between these parts, we used the blue XY and XZ axes as seen in the first image. Additionally, we were able to use the Model Smart 3D software in order to simulate stress and strain being applied to the bridge, and where the points of most stress were. Furthermore, the software allowed us to calculate the strength of all the joints and gave as invaluable information as to where we needed to add more trusses and create a stronger frame.

After creating our bridge on the Model Smart 3D software and ensuring that it passed all of the simulated stress applied to it, we still had some concerns about the strength of the bridge. Therefore, we discussed with Ms. Kimlin about our the design of our bridge, and we decided to include trusses on both the bottom and top of the bridge.