diff --git a/kblock_ext/kblock_ext.scad b/kblock_ext/kblock_ext.scad
index 657ef7e..b3fa9c2 100644
--- a/kblock_ext/kblock_ext.scad
+++ b/kblock_ext/kblock_ext.scad
@@ -1,3 +1,4 @@
+include <fillets_and_rounds.scad>
 h=7;
 r0=3;
 $fn=50;
@@ -7,43 +8,52 @@ magnet_play=0.5;
 magnet_l=19.5+magnet_play;
 magnet_w=5.8+magnet_play/5.0;
 magnet_h=2.7+magnet_play;
-magnet_hole_h=0.92*h;
+magnet_hole_h=0.86*h;
 screw_play=0.2;
 // Let's give one millimeter more
 screw_head_r=6.8/2 + 5*screw_play;
 screw_thread_r=3.5/2 + screw_play;
 screw_head_h=2.5 + screw_play;
 color("white", 1.0) {
-  difference()
-  {
-    translate([r0, r0, 0])
-    hull() {
-      for (x=[0:1:1]) {
-        for (y=[0:1:1]) {
-        translate([(l-2*r0)*x, (w-2*r0)*y, 0])
-          cylinder(h, r=r0, center=true);
+//  add_fillets(R=2) {
+    difference()
+    {
+      union()
+      {
+        translate([0.15*l, 0.001, -0.45*h])
+        rotate([90, 0, 0])
+        linear_extrude(height = h/10)
+        text("stiefel.tech", font = "Liberation Sans", size=6.5);
+        translate([r0, r0, 0])
+        hull() {
+          for (x=[0:1:1]) {
+            for (y=[0:1:1]) {
+            translate([(l-2*r0)*x, (w-2*r0)*y, 0])
+              cylinder(h, r=r0, center=true);
+            }
+          }
         }
       }
-    }
-    union() {
-      translate([0.1*l, w/2, 0])
-      cylinder(h+0.001, r=screw_thread_r, center=true);
-      // For screw head
-      translate([0.1*l, w/2, h/2-screw_head_h/2+0.001])
-      cylinder(screw_head_h, r1=screw_thread_r, r2=screw_head_r, center=true);
-      translate([0.9*l, w/2, 0])
-      cylinder(h+0.001, r=screw_thread_r, center=true);
-      // For screw head
-      translate([0.9*l, w/2, h/2-screw_head_h/2+0.001])
-      cylinder(screw_head_h, r1=screw_thread_r, r2=screw_head_r, center=true);
-    }
-    translate([l/2, 0, 0])
-    union() {
-      for (x=[-2:1:2]) {
-        translate([x*1.0*magnet_w-x*0.001, w/2, -h/2+magnet_hole_h/2-0.001])
-        rotate([0, 0, 90])
-        cube([magnet_l, magnet_w, magnet_hole_h], center=true);
+      union() {
+        translate([0.1*l, w/2, 0])
+        cylinder(h+0.001, r=screw_thread_r, center=true);
+        // For screw head
+        translate([0.1*l, w/2, h/2-screw_head_h/2+0.001])
+        cylinder(screw_head_h, r1=screw_thread_r, r2=screw_head_r, center=true);
+        translate([0.9*l, w/2, 0])
+        cylinder(h+0.001, r=screw_thread_r, center=true);
+        // For screw head
+        translate([0.9*l, w/2, h/2-screw_head_h/2+0.001])
+        cylinder(screw_head_h, r1=screw_thread_r, r2=screw_head_r, center=true);
+      }
+      translate([l/2, 0, 0])
+      union() {
+        for (x=[-2:1:2]) {
+          translate([x*1.0*magnet_w-x*0.001, w/2, -h/2+magnet_hole_h/2-0.001])
+          rotate([0, 0, 90])
+          cube([magnet_l, magnet_w, magnet_hole_h], center=true);
+        }
       }
     }
   }
-}
+//}