Table of Contents
Erin's Communion Cup
Goals
To create a communion cup that is easier to hold than the standard size and has good stackability.
Design Drivers
Users Elderly person, look at how to make the cup larger to provide better stability in the hand Quick production, look at making a cup that is cheap to make and very simple Aesthetic appeal, look at creating a cup that focuses more on the aesthetic side but also keeping some functionality
Logic Diagram
CAD Model
Parameters Defined
- Height
- Ratio of points to height
- Bottom Width
- Top Width
- Tolerance of center opening
- Thickness of bottom
- Equation of side profile
- Length of points to center axis
Screen shots
Elderly Cup
Quick Cup
Aesthetic Cup
Point Parameters for Designs
- Elderly Cup
- 1 in
- 1.36 in
- .223 in
- .275 in
- .356 in
- .5 in
- Quick Cup
- 1 in
- .163 in
- .142 in
- .245 in
- .356 in
- .5 in
- Aesthetic Cup
- 1 in
- .437 in
- .133 in
- .105 in
- .856 in
- 1 in
Lessons Learned
- The importance of understanding the logic behind the model
- Realize some of my goals were not met. Stackability was not really addressed as it should have been, but I really do think this is important.
- Most things can be defined or parameterized in multiple ways
- There can be as many or as few constraints placed on a model, it mostly depends on your ability and understanding of the program
- It is not enough to just push and pull an object. You need to be able to create driving forces behind the object.
- There must exist relationships between the three different designs. This is where the benefit of creating a parametric model helps, being able to quickly change something that is connected by relationships.
Discussion
I like your designs. They look like they meet each of your design drivers well. I especially like the form of the “Elderly Cup” - the shape seems appropriate for an older person because it is easy to hold with the smaller stem and large and wide cup on top (so that they can have their hand rest under to hold the cup). Nice job!
The aesthetic and functionality design in your project is well used in your project. Your mix with engineering thinking, in parametric dimensions, and the design approach is well presented with the real example in the project. Well done!
I really like the curves of your designs. Interestingly enough, I think the top design, if the basin is deepened could be stackable if stacked opening down. I can't tell if its part of the design or just the way the surface renderings show up but it looks like some really interesting things are happening with the volume of your cup. I didn't play much with hollowness as part of my design but think it would be cool to see cross-sections of your designs and see how the inside changes between the different containers.