diff --git a/js/parts/DNAStraightPart.js b/js/parts/DNAStraightPart.js
index 80a8fbffc36c92132a5bc75679bad8603e543bc0..4fd898efce39f136e94245701eeb95cb604f96eb 100644
--- a/js/parts/DNAStraightPart.js
+++ b/js/parts/DNAStraightPart.js
@@ -5,7 +5,7 @@
 
 define(['underscore', 'stlLoader', 'gikPart'], function(_, THREE, GIKPart){
 
-    var zScale = 1/8;
+    var zScale = 1.08/8;
     var unitGeo = new THREE.BoxGeometry(0.2, 0.2, zScale);
 
     var bridgeGeo = new THREE.BoxGeometry(0.3, 0.4, zScale);
diff --git a/js/plists/PList.js b/js/plists/PList.js
index 56f4b6793d522d0953471b07586452ed4e2f58cb..58ff02f724b48c40820f5c27a6dd6cd2d6a595e0 100644
--- a/js/plists/PList.js
+++ b/js/plists/PList.js
@@ -261,10 +261,12 @@ define(['three'], function(THREE){
                                         name: "Lego Blocks"
                                     }
                                 },
-                                aspectRatio: new THREE.Vector3(1,1,1),
+                                aspectRatio: new THREE.Vector3(1,1,1.08),
                                 materialClasses: ['mechanical'],
                                 options: {
-                                    gikLength: 2
+                                    gikLength: 2,
+                                    scale: 2.5,
+                                    units: 'nm'
                                 }
                             },
                             default: {