This week was spent practicing and memorising a 15 minute presentation.
After filming and editing I compiled my footage into my final user video.
Final Display Model
Moving onto my final display shoe I resin printed the sole to get a nicer finish to resemble the high standard that can be reached with 3D printing. I kept aside the nicest upper I had so that the shoe will be the nicest of my models.
I spray painted the sole black before taping and filling with bio foam.
For the inner sole I used a piece of merino fabric joined to a layer of more rubbery bioplastic, with a touch of branding.
Then again using linen twine stitched on the final upper.
Final Shoe Model
After just 2 weeks in compost this was the result
The cuts were a result of the wire I used to make sure I knew where the foam was. Each different density soaked up water so the different types were unrecognisable. There was a thin layer of mold breaking down the foam but had a while to go, this was a promising sign that it does take some work to degrade so they wont fall apart on your feet.
Some feedback I received suggested coming up with a rand or model name for the shoes, this would help when it comes to painting a picture of this product being brought into the existing shoe market. I came up with arrange of branding displays but stuck with the simple brand name Forest Floor. This is a brand that creates products that aim to one day be a part of the forest floor.
The product name I went with was Voronoi. This seemed fitting as it is a noticeable feature on the sneaker and has been prevalent throughout the designing of my shoe using parametric patterns.
I really only had one idea when it came to packaging, this was to bake a cardboard or paper press box which would partially submerge the shoes, this links to the end of life state of the shoe being submerged by soil.
For this I used a cardboard box and included a layer of grass for display purpose along with some branding print.
User experience Storyboarding
I began sketching a storyboard of the user experience video, showing how someone could wear and explore with these sneakers as well as showing how the shoe can be dissembled and composted.
I allowed myself two minutes for the video as I didn’t want the user to get bored or distracted easily.
While shooting the video I also wanted to take some more in context photographs, these were my examples of images that could also be used for advertising of the sneaker.
I joined the working shoe soles together by heating up a metal rod and melting the ends of the TPU print. Once joined I filled them with the final working bio foam.
Final Working Shoes
Using a linen twine I stitched the final working upper to the working soles and inserted an existing innersole just for the sake of wearing the shoes.
The next checkpoint was making sure I had me technical drawings sorted out. Now that I had my final parts and their dimensions I layed out my parts and arrange dthem into the following drawings.
Now that I had all my pieces for the working shoes I began arranging and assembling the features and making sure they fitted together.
Once confident I inserted the heel and toe caps in sew the upper shut.
Heel and Toe caps
The next part for my upper is the built in 3D printed heel and toe caps. I used the shape and forms from models earlier on for a full scale print.
These help give structure and shape to the upper. I printed 3 sets so that I could make one working pair of shoes and one final model shoe.
Final model presentation
We were asked to display our current stage for the final model in class, at this point I had the overall shape and 3D print details of the upper, along with the heel and toe caps but was still working on putting together the soles.
I simply included imagery of how the sole and midsole will look once finished.
3D printing onto fabrics
I decided to use 3D printing onto fabrics around the laces to tie the overall look together. They also help give strength to the lace eyelets and the tongue, especially for my one price tongue for a sock like fit. This will help resist stretching over time too.
So using my measured pattern I pinned and printed the details onto these areas.
I made enough upper so I would still have a few test pieces. These prints are short and thin, this is because I am not so much as printing objects that will peel off easily, I am trying to print a detail layer that will still move and flex easily with the foot.
The details contained a thin 2 layer voronoi pattern that in printed on the black tongue layer of merino, this will be hidden under the laces and act as a subtle detail the user will notice as they look closer. Along with 6 eyelets for the laces, these are individual voronoi cells that piece together but have been spaced apart with some smaller details at the edge hinting to the continuose form of the voronoi pattern. I will be using black laces as it fits well with the colourway.
The fabrics are then cut and sewn to get the overall shape.
I used some test uppers looking into the seam that would be around the ankle, these looked at a thin closed seam:
Or a wider seam that could be stuffed with a soft material such as plant fiber:
Most reactions favoured the stuffed plant fiber seam, this made sewing more complicated such as fixing the join seen in the back of the heel but made for a fuller more comfortable upper.
We were asked by our tutors to practice showing off our work and ideas with a simple A4 page with an in contecxt image and a sentance explaining the overall idea. This was my page.
I used my latest working model and photographed a classmate wearing it outside on the grass.
3D printing sole
I began printing the parts for my final working soles, these are printed in seperate pieces and will be glued together. This is because I did not have access to a 3D printer bed that was big enough to print a full US9 mens shoe sole in one go (thats my size shoe).
While 3D printing with TPU 95 there where always learning curves. It was a difficult material to print with and so this layout failed completely. The filament needs to be stuck to the bed really well and the first layer is very important to keeping everthything stuck down. I needed to do my prints one at a time and be checking to make sure the layers stick well with no raises.
The parts will be printed as shown so the longest print is only 5 hours and i am able to check in on them to see how they are doing.
These are the resulting prints.