Week Nine

Today in lab, we split up the work we have left to do.
Gabe and Walter are working on the poster.
Elvira and Jordan are working on the powerpoint.

By dividing up the work this way and switching between both for the other group to check, by the end of today's lab we will have finished most if not all of the poster and powerpoint. Then, all we will have left is the final report, which we can work on after lab.

Week Eight Outside Lab

This week we were notified that our group was selected to represent Section 63 at the Freshman Poster Competition. We have to create a poster to prove that we are the best candidates to participate in a bigger poster competition. So now we are working on completing our poster, finishing our powerpoint, and updating our final report.

Within our final report, we need to

• update the list of materials to reflect more precise prices and measurements
• format figures and tables properly and remove unnecessary information

We already have a basic outline for the powerpoint, all that is left is to insert a few lines and pictures per slide.

We also completed the details on the 3D model including window drawings and building names.

Week Eight

This week we discussed what we need to accomplish in the weeks to follow:

1. Color the 3-D printed model
2. Revise our final report
3. Create a powerpoint presentation 

Jordan worked on a little bit of the presentation, Walter completed some finishing touches on the design of the bridge in Inventor software (Figure 1), and Elvira and Gabe worked on the 3-D model (Figure 2).

Figure 1: Updated Inventor Software Model with Rooftop Features

 Figure 2: 3D Model with Color

It seems that we are right on track and will definitely be able to complete everything with time to spare.

Week Seven Outside Lab

After many weeks of trying to secure a slot to 3D print in the studio, I was finally able to begin printing. The model itself was hollow on the inside and had a extrusion of 0.3 millimeters (Figure 1). We chose the white filament so that it would be easier to paint and add details. We also decided to print not just the model of the pedestrian bridge, but also the surrounding buildings in one run.

Figure 1: 3D Model of the Skyway over Chestnut Street

The printer ran into trouble when creating the tops of the buildings because it could not get the filament to stay in place and stay firm on the edges of the buildings' walls, so many of the buildings have holes in the roofs. We decided that we would add some white cardstock or construction paper to the roofs to cover the holes. Then we plan to add more details in terms of color and bridge finishing touches.

Because the bridge is truly quite small, we are in the process of building a section of the skyway that showcases the rooftop garden, the overhead lights, and the material of the walkway. We also contacted the head of the 3D printers too see if we can use the largest 3D printer to create a bigger scale model of the bridge while also utilizing the dissolvable filament supports. Hopefully we will hear from him soon. 

Week 8 will consist of more 3D printing (if we are granted access to the larger printer), working on and adding detail to the existing 3D model, finishing up the larger section of the skyway, and revising the final report.

Week Seven

Today we decided exactly what deliverables we will have at the end of the project. Because we were able to get our hands on a 3-D printer today, we printed a very small model of the bridge and surrounding buildings (Figure 1). It should be ready for pick up by Wednesday morning. In addition to the 3-D model, we are building a section of the bridge out of wood and other materials so that smaller details on the bridge are more easily seen. These details include working light fixtures, clear "glass" paneling as a railing, and plants on the roof of the skyway, to name a few.

Figure 1: Model without bridge

Week Six Outside Lab

This week outside of lab, a basic Bill of Materials was created to reflect the price of all the materials and design additions, excluding the services, permits, and labor (Figure 1). Additionally, a list of permits required was compiled into an easy-to-read visual (Figure 2).

Figure 1: Bill of Materials (excluding labor, services, permits)

Figure 2: Permits required for bridge completion

Also, Jordan and Walter began working on a 1'=(1/2)" scale model of an 36' section of the bridge. Our deliverables continue to be a physical model of the bridge and surrounding buildings, however, we may now build a scale bridge ourselves out of wood instead of 3-D printing because of the lack of available printers in the studio.

Week Six Lab

To start 3-D printing, we needed to break up our original model into pieces to print because we wanted to have a bigger model. We started with the buildings surrounding the bridge on Chesnut Street:

Figure 1: Shake Shack entrance and every

             building East until 32nd Street

Figure 2: Papadakis Integrated Sciences Building

Figure 3: Stratton Hall and Disque Hall

The three figures above, plus one figure of the Handschumacher Dining Hall, MacAlister Hall and bookstore, are to be printed separately as large as possible. We started to print today, but a few of them had already been taken and the rest were not working or cooperating. We plan to visit the Innovation Studio as often as possible outside of lab to see when the printers are available and functioning. Each group member has access to the model files.

Week Five Outside Lab

This week is 3-D printing week! The model of Chestnut Street and surrounding buildings is completed in AutoCAD (figure 2) , so during lab time Elvira and Jordan are going to transfer files from AutoCAD to the 3-D software. The official measurements of the 3-D model deliverable will be posted tomorrow. As for the bridge itself, Gabe and Walter are working together to put the finishing touches, such as rooftop gardens and specific light fixtures, in AutoCAD. Then, either this week out of lab or next week during lab, they will begin 3-D printing the bridge base.

When the models are completed, we plan to add some color, texture, and real shrubbery and plants to make the final product look professional and realistic. We as a team believe that this bridge has the potential to actually be built and we want to see it through completely.

Figure 1: Korman Quad and Chestnut Square (North Iso CAD Model)

Figure 2: 33nd to 32nd St. Block (South East Iso Cad Model)

Week Five Lab

Today's class was very productive. Each group member was actively working on some aspect of the project. Gabe completed a street view of surrounding buildings around Chestnut Street in AutoCAD. Walter finalized measurements of the bridge and cross referenced them once again with ADA codes and state and city regulations. Elvira worked on our first neat sketch drawn to scale (Figure 1). Jordan researched building materials for prices as we made lists of what materials we plan to use.

Figure 1: Bridge Sketch to Scale

The bridge, shown above, currently has two different scales: 1 block = 1 foot for the height (y-axis) and 1 block = 5 feet for the length (x-axis). This was to fit the bridge in its entirety (it spans approximately 250 feet) onto one page. Because of this, the bridge seems a little disproportionate, with very large slopes. However, a same scale model and a 3-D model will show a less augmented view.

Now that our sketch is completed and all measurements are confirmed, we can begin sketching more views and the 3-D model can be completed.

Week Four Outside Lab

This week we plan on starting to 3-D print our model. The specifications such as exact measurements and details are almost completed and we believe we can start printing in sections starting by the end of week five.

Design and measurements to be completed are for:

• base
• roof
• columns
• supports
• ramps
• stairs
• length
• height
• width of walkway
• designs
• lights
• plants
• railings
• glass
• ramp material to reduce slip
• drains for rainwater