X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=knifeblock.scad;h=4742458f08b5bfd4776b33b6d11c0d0239241626;hb=393433331138b38ee2e1826ba9d63f10a354e2d0;hp=b1a4052f15383261b5bc6437b598dde32a8d03b1;hpb=37753f47324a8af3641faa2f3e6ec4d9419c9be8;p=reprap-play.git

diff --git a/knifeblock.scad b/knifeblock.scad
index b1a4052..4742458 100644
--- a/knifeblock.scad
+++ b/knifeblock.scad
@@ -224,6 +224,20 @@ module HolesScope(){
   }
 }
 
+module HexGrid(imin,imax,jmin,jmax) {
+  for (i=[imin:imax]) {
+    for (j=[jmin:jmax]) {
+      translate([j * sqrt(3) * holepitch,
+		 (i+0.5)*holepitch,
+		 0]) {
+	child();
+	translate([sqrt(3)/2 * holepitch, -0.5 * holepitch, 0])
+	  child();
+      }
+    }
+  }
+}
+
 module Hole(){
   cylinder(r=holesize/2, h=40, $fn=40);
 }
@@ -234,18 +248,9 @@ module Holes(){
   jmin = ceil((maxx-minx)/(sqrt(3)*holepitch));
   echo("Holes X count 2 x", jmin);
   intersection(){
-    translate([holeoffx * holepitch, holeoffy * holepitch, 0]) {
-      for (i=[0:imax]) {
-	translate([0, (i+0.5)*holepitch, -20])
-	  for (j=[-jmin:2]) {
-	    translate([j * sqrt(3) * holepitch, 0, 0]) {
-	      Hole();
-	      translate([sqrt(3)/2 * holepitch, -0.5 * holepitch, 0])
-		Hole();
-	    }
-	  }
-      }
-    }
+    translate([holeoffx * holepitch, holeoffy * holepitch, -20])
+      HexGrid(0,imax,-jmin,2)
+      Hole();
     HolesScope();
   }
 }