improve key

items/key.scad

@@ -1,8 +1,11 @@
 
+// achse
 translate([5,0,0])
 rotate([0,90,0])
 cylinder(d=4, h=25, $fn=64);
 
+
+// verdickung
 translate([18,0,0])
 rotate([0,90,0])
 cylinder(d=5, h=1, $fn=64);
@@ -11,8 +14,11 @@
 rotate([0,90,0])
 cylinder(d=5, h=1, $fn=64);
 
-    translate([20,0,-1.5]) {
 
+// bart
+translate([20,0,-1.5]) {    
+    difference() {
+        union() {
             cube([3, 6, 3]);
             translate([5,0,0])
             cube([2, 6, 3]);
@@ -24,9 +30,16 @@
             cube([2, 4, 3]);
         }
         
+        translate([0,3,2])
+        cube([20,2,4]);        
+    }
+}
+
+// knubbel
 translate([-6,0,0])
 sphere(r=2, $fn=64);
 
+// griff
 difference() {        
     hull()
     {
@@ -47,4 +60,3 @@ difference() {
     translate([0,-2,0])
     cylinder(d=6, h=10, $fn=64, center=true);
 }
-