--- /dev/null
+// -*- C -*-
+
+prisml = 13;
+triedge = 13;
+
+module FaceTriangle(){
+ x = triedge / 2;
+ y = triedge / 2 * sqrt(3);
+ polygon([[-x, 0],
+ [ 0, y],
+ [ x, 0]]);
+}
+
+module Body(){
+ translate([0, prisml/2, 0])
+ rotate([90,0,0])
+ linear_extrude(height=prisml) FaceTriangle();
+}
+
+Body();