Part I | Concept. To start my concept, I chose a reference object to develop orthogonal reference planes. The reference object, a sneaker, was to be asymmetrical, contain volume, be scalable, and capable of putting tape and Sharpie markings on the object for measurement. For my concept, I decided to sketch one of my many pairs of sneakers. I didn’t want to take the chance of putting Sharpie marks on a new pair, therefore I chose an old pair of Nike running shoes that I don’t care much about. The specific Nike model to be used as my reference object was the Nike Air Max Typha Flywire Training Shoe in US 10.5. The type of work I was planning to complete is similar to aircraft and boat lofting. To begin the lofting technique, a drafting technique where curved lines are generated, I used blue masking tape to dissect a datum point on the sneaker from heel to toe, going around the entire sneaker. Next I took a ruler and measured inch by inch from the tongue to the toe, marking the inches on the blue masking tape in Sharpie pen. I did this going from the back of the collar of the sneaker down to the bottom of the heel and through the bottom of the outsole.
Part II | Iteration. I first came up with a drawing plan on 11×17 four-square-inch graph & layout paper of the sneaker. The tools I used were a pencil, an eraser, scissors, a Sharpie, a ruler, and blue masking tape. I used a piece of cardboard to line up against the back of the sneaker to acquire my datum point for the back view. I did the same with the piece of cardboard to the front of the sneaker and marked my datum point in pencil. Following, I used a ruler and held it up from the back of the shoe’s datum point to the front datum point, diagonally straight across and marked off the inches in Sharpie on the blue masking tape, taped to the sneaker. The datum points I used for the heel and front of the sneaker joined to form the center line of the sneaker. Using the ruler, I plotted points in pencil around the sneaker matching up where the inches on the blue masking tape are positioned and connected them using pencil to create the outline of the shoe from a top view. This completed my sketch of the sneaker from the top view. Moving to the side view, I similarly used the ruler to project down to plot the points and connect the dots.
Part III | Final. For my final, I scanned my sneaker sketches using the flatbed scanner in the MakerSpace and created two jpg files, one of a top view and one of a side view of the sneaker. Next, I opened my sneaker orthographic views in Autodesk Fusion 360 to view them as reference planes. I created a rectangular shape form around the reference plane images to get to work. I clicked on symmetry, mirror internal, and selected two faces to create an axis of symmetry based on the two faces. Next I selected faces in the front of the object to create my toe selection set. I then positioned the toe faces using the modify function for a taper style look. Next I used a soft modification to smooth out the edges of the object. To profile the side of the orthographic object, I selected the toe faces and soft modification to taper the object down to size. Next I selected rings on the scale to drag the object down to the base to eliminate the large space that happened when tapering the toe faces in the process before. I tweaked the soft modifications more to create the sneaker object. I created a Slicer image of two sheets of 11×19 corrugated cardboard. In Autodesk Fusion 360, I selected Tools at the top of Fusion 360, Make, and Slicer for Fusion 360. Once in Slicer for Fusion 360, I edited the slice direction to go from top to bottom and made three dowels on the object to have a .250 diameter for each. Lastly I clicked Get Plans to create my sheets and saved them as a .pdf to my computer. I still wasn’t done with my plans, so I used Adobe Illustrator to refine the layout some more for laser cutting. The laser cutting went very well and I did not have any issues with the machine. Finally I took my cardboard cutouts and glued them together to get my finished orthographic sneaker.
Cromar, W. (2020). Linetoplanetopologicaltransformations. Retrieved March 28, 2021, from http://newmediawiki.pbworks.com/w/page/127314248/lineToPlaneTopologicalTransformations