DanBPattern.

thingiverse

A customized adaptation of the model available at http://www.thingiverse.com/thing:185249 was created using the Customizer tool (http://www.thingiverse.com/apps/customizer/run?thing_id=185249). In this version, a heptagon was used with an edge thickness of 1, rotated by 40 degrees and stretched by 100%. An overlap factor of 40%, with no stretch-off, was applied. The pattern had a thickness of 3, while the width and length were set at 25 and 50 respectively. A radius of 4 completed this design.