Running activity visualization beads

The purpose of these beads is to visualize your running or walking activity. For each run/walk you can print a parametrized bead. It visualizes three parameters:
* Running or walking __duration__: __Bead diameter__
* Running or walking __distance__: __Bead length modification__
* Average __speed__: __Resolution__ (higher=faster)

Use the easy-to-use __Customizer__ (click on "apps") to create beads that visualize your own running (or download the OpenScad code).

Duration is more important than kilometers or speed, but you can change that by editing the code. The picture chosen to represent the thing shows: A 20km walk in 7 hours, 1 hour of jogging and the best marathon run ever.

Creating a string of pearls that you could proudly wear may help you engaging in running or walking activities. Imaging a deal with your partner: For each achieved run or walk, you will give or receive a silver-plated bead (via an on-line printing service). The bigger, the longer and the smoother the