MEGR 2156
Maggie Wyatt
Sophomore Mechanical Engineering Student
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Problem Statement
In ENGR 2156, Sophomore Design, I would like to design a lipstick container. I want to change the design of a lipstick container to make it more user friendly. However I want the design to be compatible with the current size of lipstick. I want to change the design, because currently lipstick tubes are still similar shaped to the original design. The only thing different is the dimensions, or look of the container. However they are still operated the same way, by twisting from the base and pushing the product to the top. My design will start from the current design of lipstick tube and modify it. Once you use the lipstick, there is still a small amount left that you cannot use without attempting to take it out of the container. This causes product waste, because you can not use all of the product in the container. This problem also happens in chapstick tubes. If the design was changed to have no waste, or less waste, then the consumer would be able to get more for their money. Lipstick containers only purpose now is to incase the lipstick, and they are made aesthetically pleasing. However, I want to change it so the container itself improves the use of the product itself. The container should allow for ease of use, less product wasted, and protecting the product itself. Restraints I have in the design would be the cost of manufacturing. As the cost would need to be cheaper or equal to the current manufacturing process. Also, the design has to be able to be easily held in the hand and applied. Another restraint is the amount of time I have to come up with a design. I want the size of my design to be compatible with the current design, therefore the dimensions must be similar, and able to hold the average lipstick bullet.
Assumptions
One assumption is that the user has to be able to work the product themselves by hand without any power from an electrical source. Another assumption is that a lipstick bullet is .5 in diameter, cylindrical shape, and 2 inches long. Also that the lipstick bullet is just the product itself, that my design will be the entire packaging. Another assumption is that the lipstick tube will not be undergoing extreme temperature changes. Finally, that the container will also not be undergoing extreme pressure changes, or have large compressive forces applied to it.
Gantt Chart
Decision Matrix
In the design matrix I compared my three modules to break them down to the component level. The three modules were the cap and body, the inside casing, and the lever assembly. Using the decision matrix I choose to break the first module, the body and cap, down to the component level. In my decision matrix the thing I weighed the most heavily were aesthetics, cost, and ability to make adjustments. Aesthetics was the most heavily weight, as the product needs to function but to sale it must be visually pleasing to look at. Cost was highly weighted as it needs to be cost effective so I company can make a profit off the sale of it. Ability to make adjustments to dimensions was also a large factor, and the design need to be able to be tweaked easily so a company can adjust the design.
Component 1: Cap
Component one is the cap of the product. It will be able to be screwed on and off of the body.
Component 2: Outside Casing Body
Component 2 is the body of the outside casing. It will go over the inside casing and have a rectangular cut out of one side for the lever to be pushed up.
Component 3: Threads
Component 3 is the threads that will be used to connect the cap to the body. The cap will have internal threads while the body will have extermal threads.
Creo Assembly
Hand Drawing
Links to Creo Files
Creo is a form a parametric modeling. It is used to create 3D parts. Your parts must be fully constained dimension wise, and when creating an assembly they must be fully constrained.
Assembly Cap Body
Lessons Learned
Assignment 5 focused on choosing 1 module, then breaking it down into three components from that module's frdparrc table. In this assignment I focused on the material I want to use in my design, dimensions, and manufacturing.
I learned about different types of plastics that are used in cosmetic packaging. I also learned about thread sizes and how to use tap and die sizes in your design.
Date and times
-Made Decision Matrix: April 7th, 2018. 10-11am
-Came up with components: April 7th, 2018. 11-11:30am
-Finished frdparrc tables: April 7th, 2018. 11:30am-2:30pm
-Updated problem statements and assumptions: April 7th, 2018. 6-7pm
-Updated Webpage: April 8th, 2018. 7-8pm
-Comment to Advisees and Added Lessons Learned: April 9th, 2018. 6:30-7 pm
-Finished Webpage: April 9th, 2018. 7-7:30 pm
Comments to Advisee
Lindsay Ward
Comments
-Maybe put a link back to your previosu assignment or include a breif description of what each of your sub componetns were.
-Are your sub-components your modules? The break down is slightly confusing.
-How did you determine how much each of the sub-componetns would cost, relative to each other?
-you could discuss the exact dimensions of your components.
-You could add hand drawings with your creo drawings. This will allow the viewer to see dimensions and see your design in more detail.
Marc Duemmler
Comments
-Maybe add a link back to your original assignments page
-You could add a header to your assumptions section to separate it from your problem statement
-You are missing your frdparrc tables for your components
-Don't forget to add your comments to your advisees!
-this might be in your frdparrc tables, but you can discuss your dimensions and why you chose them.