l-g-t

pattern discovered by gailprentice. and probably independently found by others, too - people, come forward!

 

expanded onto a 1:64 grid by me, myself and I. I started with a hex of 35cm diameter, it's 21,5cm now.

 

named using a scheme invented by ben parker ; )

 

the back's nice, too, but rather hard to photograph.

Done