diff --git a/split_reel.scad b/split_reel.scad
index ef5c5a4..9b852bf 100644
--- a/split_reel.scad
+++ b/split_reel.scad
@@ -5,13 +5,14 @@ Core16mm = 25.5;
 PlatterThickness = 1.6;
 Platter120m = 178;
 Thread16mmD = 17.5;
+Pitch16mm = 1.55;
 
 module thread_16mm ( pos = [0, 0, 0], length = 11, chamfer = false, pad = 0) {
     translate(pos) {
         if (chamfer) {
-           metric_thread (diameter=Thread16mmD, pitch=1.5, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
+           metric_thread (diameter=Thread16mmD, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
         } else {
-            metric_thread (diameter=Thread16mmD, pitch=1.5, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
+            metric_thread (diameter=Thread16mmD, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
         }
     }
 }
@@ -80,9 +81,11 @@ module split_reel (format = "16mm", length = 120, half = "A") {
 }
 
 PART = "split_reel_16mm_120m_B";
-
-if (PART == "split_reel_16mm_120m_A") {
-    split_reel("16mm", 120, "A");
-} else if (PART == "split_reel_16mm_120m_B") {
-    split_reel("16mm", 120, "B");
+intersection () {
+    if (PART == "split_reel_16mm_120m_A") {
+        split_reel("16mm", 120, "A");
+    } else if (PART == "split_reel_16mm_120m_B") {
+        split_reel("16mm", 120, "B");
+    }
+    cube([30, 30, 40], center = true);
 }
\ No newline at end of file