shapes template for small notebook (moleskine)

thingiverse

I required a straight edge for my compact Moleskine notebook and sought a feature that would provide some rigidity to the book. I incorporated several practical shapes, including double small triangles designed as arrowheads pointing in two opposite directions. The dotted notebook I use features 4 dots per inch, so the small shapes should be precisely 6mm in size. The medium shapes are meant to measure 12.5mm, while the large shapes will be 24.5mm. I intentionally varied the radius on both the "inside" and "outside" corners.