Initially created in 2008 using Adobe Illustrator. I tried then to design some things similar to the triquetra figure, but starting with star polygons based on various prime numbers [[7](https://skfb.ly/6YWrw) [11](https://skfb.ly/6YYyu)]. This time I drew some kind of a {13/5} tridecagram but linking the vertices with a curve including an internal angle. Forked in 3 bands to get more interlacings. Converted to 3d mesh in Blender in 2010, but before uploading it here I improved it adding a solidify modifier that did’nt exist back then.
▼ (not sure to remember but might have been vaguely inspired back then by this design featured in *[George Bain’s reference book](http://www.worldcat.org/oclc/41153804)* I used to study, chapter “Applications”, plate 19 p. 146)
[![George Bain Celtic art : the methods of construction](https://1995-2015.undo.net/Pressrelease/foto/1319122806b.jpg)](https://www.culture24.org.uk/art/art368438)