Our product was well-received at the Critical Function Science Fair. When first tested in front of Professor Spenko, the cap tested leaked, but this was due to an excess of water being added to the bottle. Reducing the amount and testing it again proved that our primary critical function was met. We also showed a couple of other prototypes as well as our preliminary lid designs, the other critical function. Proper sealing ensures that ketchup does not dry out at the exit or inside our filtering cone. The other part of this critical function are the threads, which are able to fit and screw onto Heinz bottles.
Moving forward, Prof. Spenko stated that given our relatively simple project, we're expected to each devise alpha prototypes that 1) fulfill our critical functions, 2) look like the final product, and 3) have a good fit and finish, and 4) if possible, include a living hinge for the lid. With the main CAD file for the cap at our disposal (designed by Chris), we each set out to make our own unique designs, and spent the next lab working on those in Inventor. By Week 13, we're expected to have engineering drawings with proper dimensioning and tolerancing of each part, an assembly, exploded view, and bill of materials.
Later in the lab, our design notebooks were reviewed, and every group member was told that more of the design process needed to be included. Prof. Spenko wanted to see how our ketchup cap evolved over the last few weeks, as well as details of why changes were made and why ideas worked or didn't work. We gathered up old photos of our prototypes and took new ones as necessary to put together a document that discussed each design's features and the required details.
Later in the lab, our design notebooks were reviewed, and every group member was told that more of the design process needed to be included. Prof. Spenko wanted to see how our ketchup cap evolved over the last few weeks, as well as details of why changes were made and why ideas worked or didn't work. We gathered up old photos of our prototypes and took new ones as necessary to put together a document that discussed each design's features and the required details.