The goal of the project is to make the spikes retractable. In Cross Country, we run on grass, dirt, pavement, and many other surfaces. When not on a permeable surface such as grass, it is easy to damage/dent the insert spikes. By using a spring system, i was able to make my running spikes retract the inserts when the runner reaches a hard surface (pavement for example).
Step 1: Taking Apart the Shoe
I used a Nike Victory XC spike that is used for the sport of cross country. The first step of the process was to remove the inner sole. From the I could begin drilling the holes for the spikes...
Step 2: Drilling the Holes
After taking apart the shoe, I began to drill the holes where the former threads used to be. In place will be springs attached to the inserts.
Step 3: Attaching the Spikes to the Springs
After this step, the shoe is able to retract the spikes when force is applied to them.
Step 4: Testing and Evaluation
The project was a success. The spikes retract into the shoe when force is applied.