Building a Prototype

The first thing we built was a mini model of our design so we could get an idea of how it might work on a smaller scale. We winged it on the size of the smaller version and just made it big enough to fit one bottle. We used single layers of corrgurated plastic to build this. We then cut holes for the cooling module as well as a little vent for air to escape. After this we put the insulation on the box so we could get an idea as to how the insulation spray behaved. 

Originally we were going to 3D print the whole build, but after some discussion we decided that we were going to use corrugated plastic instead. We decided to proceed with this, because we didn't have the time to wait for the 3D prints to be done as we needed to start testing. Because we were using this plastic instead of PLA, there were some changes that needed to be made. When we were building we realized that our material might not be strong enough to support the weight of all of our components. We decided to double up and layer each of the walls to provide more stability. We began by using the CAD model to get dimensions for our model and used a box cutter to cut the plastic into the right sizes. 

To make our design we used our CAD model to get the correct dimensions that we needed. After this we used rulers and markers to mark out where we needed to cut on the plastic. We then took box cutters and cut up the plastic into the right sizes. We hot glued these plastic pieces together to create the double layer. We then glued the walls together so we could get an idea of what it would look like. Then, we made cuts in the walls to accommodate the cooling module and the two fans we intended on using. The hardest part was making sure the inner box and outer box lined up correctly. Once we did that and lined everything up correctly we were able to put the insulation in between the two layers. The hardest part about this was making sure the insulation didn't go anywhere we didn't want it to go.