treefoi: more

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/treefoil.scad.pl b/treefoil.scad.pl
index b1ceecbec8400a3129e0aeffd953b0e3f234910d..82b0c59b0feb8058b690f82d038edcdffc01e88a 100755 (executable)
--- a/treefoil.scad.pl
+++ b/treefoil.scad.pl
@@ -36,3 +36,21 @@ o "}\n\n";
 while (<DATA>) { o $_ }
 
 __DATA__
+
+thick = 8;
+
+// calculated
+
+octa_long = thick;
+octa_short = octa_long / (1 + sqrt(2));
+
+module OctaThing() {
+    foreach (r = [[0,0,0], [90,0,0], [0,90,0]]) {
+       rotate(r)
+           cube([ octa_short,octa_short, octa_long ], center=true);
+    }
+}
+
+OctaThing();
+
+