Development milestones Update

Critical Path update

by LAURA SHUMAKER January 16, 2014

Looking at the critical path outlined in the last post, I've completed the first step, validating the relaxing shoe concept, and begun the next step, scaling the lasts and patterns.

The most recent prototype made on Last 8 felt excellent during climb testing last week and passed the majority of tests I use to assess a prototype design, so I committed to grading Last 8 to Dan's size. Using scale factors derived from the slope of best fit lines from Army foot data (example graph below) and from Dan's foot measurements, I scaled up the CAD file, lasercut the new parts, and assembled Dan's last.