diff --git a/abw1ga2etc.js b/abw1ga2etc.js
index 11bbf01..3cd3903 100644
--- a/abw1ga2etc.js
+++ b/abw1ga2etc.js
@@ -22,9 +22,9 @@ var integer = Math.floor(offset);
 var remainder = offset - integer;
 
 if (remainder > 0.5) {
-	this.cylinder.rotation.x = (integer + 1) * 0.4488 * 2;
+	this.cylinder.rotation.x = (integer + 1) * 0.4488 * 2 - 0.4488;
 } else {
-	this.cylinder.rotation.x = (integer) * 0.4488 * 2;
+	this.cylinder.rotation.x = (integer) * 0.4488 * 2 - 0.4488;
 }
 
 console.log('offset:' + offset + ', remainder: ' + remainder);