Twinkle Shah Week 8 Assignment 2 Pendant

Keyshot Main View of Pendant

3D Printed Pendant with Attached Chain

Concept:
At first, I tried playing  around in Rhino to see what I could come up with because I didn't have anything in mind. I didn't make anything that was worth printing in my opinion, so I tried to step away from Rhino for a bit and think about what I like. I own a lot of jewelry and really like wearing it, so I thought it would be a good idea to make something I could actually wear--perhaps a pendant that I could put on a necklace. I'm fond of astronomy, and an emblem that I feel attracted to is of the sun with the moon wrapped around it. I decided then that I'd make a pendant of this emblem.

Ghosted Image Painted Black Rhino

Process:
I started with a small sketch on paper, then I created a single curved line within a circle, to make the moon inside a circle. I turned both into pipes and I trimmed the excess part of the curve with the circle. I then joined the two. To create the sun's rays, I created a small, slender cone, oriented it onto the torus, and used ArrayPolar to duplicate it 3 times for some rays coming out of half the circle--making that part look like the sun. To add more interest to the moon's side, I created some small stars with the star tool, extruding them, and ArrayPolar. Then I used Boolean Difference to cut star shapes into the torus. 

All Views of Pendant in Rhino

Materials:
In Keyshot, the materials I used were Anodized Titanium Champagne Brushed 90%. I liked the delicate look it gave and I think it suited the celestial objects. The pendant was 3D printed in PLA Black at a bit under 2 in x 2 in x .13 in. I liked the black color for it as well, although I think it gave a very different vibe to the piece. Unfortunately, the engraved stars I had made with the Boolean Difference didn't turn out so well because they were so small. According to the man at MakerTree, this was because it was printed in PLA. He recommended that I choose FDM for more detail-oriented prints in the future. 

Keyshot Material Assignments

Keyshot Perspective View

Victoria Mayfield: "Division" Prosthetic Accessory

Concept: When I first began the process of designing my prosthetic accessory, I really had no idea where to begin. I knew I wanted to do a modern design, but didn't know what would work as an addition or in place of a prosthetic leg. I began working up sketches of possible ideas, but didn't like anything that I came up with. I was sketching while I was at work and came up with this design. I thought it would translate well to a mesh shell, that I could then simply clips onto the main rod of the prosthetic leg.

Modeling: I used many different modeling techniques in order to achieve my final version of Division. I used the curve tool, the loft tool, and the ellipse tool in order to create the main shape of the accessory. I was then able to use the arch tool to trace the pattern of my design. I then extruded the curves and used boolean difference on a plane to give me the cutout of my design, 

I extruded that and then used the flow along surface tool to wrap it around my original calf shape, which gave me the shell. I did this three different times to achieve the mesh look I had in my design. I would then just scale down each shape and put it inside the other. From there I used cylinders and rounded arches to create the support struts on the inside. Finally I used the fillet edge tool on the outer cast circles. I chose to leave the inside edges unfilleted to give it a more modern look, which is what I was going for. 

Materials: For the materials of my design I decided I wanted to stick with the modern theme I started with. I used a vivid, shiny white plastic material. I wanted the material to be plastic to ensure that it would be malleable enough for the wearer to pull open from the back and snap onto the pipe of the prosthetic. I used a basic matte black for the leg, in order to contrast with the bright white of my accessory. The support struts inside are what hold the layers of plastic together, and snap the accessory the main prosthetic, so ideally they would need to be made of a strong material like metal. So for this inner support system, I decided to use a shiny, silver chrome metal material. I wanted the material to be highly reflective, in order to give the illusion that Division is simply floating around the leg post. Overall, I am pleased with the final product. 

Will McKiernan Prosthetic Accessory

After hearing Professor Scott say that we should look at armor for examples and inspiration, I turned to one of my favorite movie trilogies that has a ton of armor in it, Lord of the Rings. I was inspired by the Elven Armor, namely the shoulder piece oddly enough, and reflected that in my original sketches. However, once I began modeling I realized that the sharper design I had wanted was not very practical at all, and therefore smoothed out my design. I also had sketched out a different type of foot to place on the accessory, but after listening to the people from the prosthesis lab I decided to just model one of the feet the displayed for us. It no longer looks like a piece of Elven armor, but it does look like a cool, modern accessory to wear while running or just going out.

I began my process by scanning and uploading my sketches and then trimming and scaling them correctly for my rhino file. I then placed them in my file with PictureFrame, and began draawing curves based on the sketches. Instead of doing a NetworkSrf like in class, I called a Sweep2 command to construct the outer surface of my prosthesis. At first, I was running into some bad surfaces when I did OffsetSrf because the curvature near the top was too sharp. I remodeled the top into a smoother, wider opening and those problems were solved. I used projected curves to trim the slots out of the back of the leg, as well as the opening at the bottom. I then used OffsetSrf to make it a solid. Finally, I filleted all the edges. For the foot, I drew curves from the side and top view and then trimmed the shape from a box. I mirrored the foot so that I had two sides just like its real life inspiration.

The entire main section of the accessory is made of a light, flexible plastic. The hole in the back allow it to be pried open to place over the leg component. The leg component itself is polished aluminum, a strong yet lightweight material.The foot that I constructed is carbon fiber and plastic, another extremely strong but lightweight combination of materials. I used lightweight materials because I envision this design being used for jogging or other activities, and also the lighter it is, the more comfortable it is. This design also has the ability for extreme customization as shown in my last picture.