lock-inframe-bracket: Add ref to Wolfram

[reprap-play.git] / lock-inframe-bracket.scad

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index b4b7f65c272e773b8a88f6c907f2626de47aee7b..4001eaaebe77df1df68dc599c8973da16a13cd0f 100644 (file)
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -59,6 +59,7 @@ module oval(sz){ // sz[0] > sz[1]
 }
 
 module JoinCircs(jr){
+  # http://mathworld.wolfram.com/Circle-CircleIntersection.html
   R = tube_or + join_cr;
   r = lock_or[1] + join_cr;
   d = dist2d( [0,0], lock_0 );