Components and Materials

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For this design, many different pieces were put together to obtain a final result. Many different materials were also used and discussed as the weeks progressed.

Shoe

This sole of a shoe was originally a clog type shoe with a thick heel sole. The top of the shoe and the inner sole were both separated from the bottom sole. To put the plates into the shoe, many theories of cutting were developed.

Front plate

When it was first printed, the holes were found to be too small. The bottom also was very unstable and falling apart. The side of this plate had 2 "L" shaped grooves for the pins to move on.

Back plate

The back plate was a lot like the front plate but with 1 less spike hole. However, when it was 3D printed, the bottom became detached. Because the bottom wasn't attached, the holes were going to be widened, and shorten the width to fit the shoe better, it was reprinted. The sides of this plate looked a lot like the front with the grooves.

Spikes

Originally the spikes were going to be made out of aluminum, but it was decided that they would be too weak to be used. Even though this is a prototype, the spikes should be a bit like the end result. Instead, we were going to switch to metal, but no metal was found, so it was switched back to aluminum.

Pushing Plate

This piece was decided to be made out of aluminum and had to fit in the 3D printed front plate. When it was first given to us by the Innovation Lab, it was a bit big, so it was cut down to fit. The heel of the shoe also had a pushing plate to be placed in the 3D plate.

Pins

The pins for moving the mechanism were originally going to be made from the 2 nails in the top part of this picture. However, the nails only just fit in the grooves, so they didn't move smoothly. To fix this, skinnier rods were found to replace them. These weren't originally going to be used because they looked to flimsy, but once in the grooves, they moved fine without bending.

Springs

Many different size springs were brought into account to go into the plates for holding the pushing plate in place.

Final Product


 In the final product, the spikes were attached to the plate and fit into the shoe with the pins and sole plate. With the spikes out, the front comes up a little higher. The pins were cut down to not be as long on the outsides of the shoe.
 

 

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Background

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1. The mechanism of a sole was researched to see how our design could fit into the shoe. It was decided that the mechanism for the spikes would replace the plate of the shoe. 2. Hiking footwear was researched to learn how the sole should be formed around the mechanism of the spikes. If the sole is too rigid, the shoe would be more harmful than helpful when it comes to hiking. There were many variables to be considered while forming the base of the shoe. Hiking Footwear 3. The spikes were researched to decide on how our spikes should look and be placed. Spikes for hiking shoes were looked at as a template for our spikes. Kahtoola Microspikes 4.  Research on spikes and how they affect the forces on the shoe. The pressure from the foot on the spikes could affect the wearer's gait. How the spikes should be placed was looked at also in this paper. Research 5. Biomimicry was wanted to be defined as to further understand how our invention will be likened to nature. Bio...
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FAQs

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How many guys does it take to 3D print a component for the shoe? Apparently 5, but only 1 was on the computer. What material was used for the spikes and why? Aluminum was used for the spikes because it was the only metal available. Aluminum was good to use for the prototype because it was a metal and would hold up as a spike even if weight was put on it. If this design were to be made for real, it would probably be stainless steel. How do spikes help with walking across wet/icy terrain?  By having spikes on the bottom of ones shoes, the grip on the snow would be better. Spikes would dig into the ground better than any tracks on the bottom of the boots. What were some problems that occurred throughout this design?  While making the initial plans for the shoe, the original design that was decided upon had to be changed completely as the spikes wouldn't have been able to retract. Some materials that were going to be used couldn't be found or were too weak. The shoe...
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Project Overview

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This invention will be showing how biomimicry can be used to create a new idea. By observing how cats' claws can retract, our group has come up with a type of hiking shoe that has retractable spikes. These spikes will be useful for hikers who may be traversing snowy or watery terrain by helping with their grip. The target audience is mainly for hikers, but spiked shoes could be helpful for any type of backwoods traveling. If the spikes were substituted with softer spikes, these could even be a type of retractable cleats. Having retractable spikes already built into the hiking boot would be very beneficial for hiking. The hiker wouldn't have to carry spikes to put on if tough terrain occurs. They wouldn't have to stop to put on their spikes. All the wearer would have to do is activate the mechanism so the spikes come out. When they're not needed anymore, the spikes can be brought back into the shoe with a sliding switch.
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