diff --git a/openscad/own/2d-to-3d-scad/gonicus/gonicus.scad b/openscad/own/2d-to-3d-scad/gonicus/gonicus.scad
index 8175738..a35e4a9 100644
--- a/openscad/own/2d-to-3d-scad/gonicus/gonicus.scad
+++ b/openscad/own/2d-to-3d-scad/gonicus/gonicus.scad
@@ -3,23 +3,23 @@
 h=3;  //height
 w=20;  //width
 l=75; //lenght
-hd=7.5;  //hole_dia
+hd=w/2.25;  //hole_dia
 emd=1.25;  // embossing depth
+q=0.01;  // minimal value to avoid visual glitches
 $fn=100; //resolution
 // ###############
 difference(){ 
-    translate([0,0,h/2*1]){
+    translate([0,0,h/2]){
         hull(){
-            translate([+(l-w)/2,0,0])cylinder(h=h,r=w/2,center=true,$fn=100);
-            translate([-(l-w)/2,0,0])cylinder(h=h,r=w/2,center=true,$fn=100);
-        }    
-    }
-    translate([w/4,0,h-emd]){
-        scale([0.3,0.3,1]){
-            linear_extrude(height = h){
-                import("src/GONICUS-Logo_2022_logo-only.svg",center=true);
-            }
+            for(x=[(l-w)/2,-(l-w)/2]){
+                translate([x,0,0])cylinder(h=h,r=w/2,center=true); // body
+    }}}
+    translate([-(l/2)+(w/3),0,h/2]){
+        cylinder(h=h+q,r=hd/2,center=true); // keychain-hole
         }
-    }
-    translate([-(l/2)+(w/3),0,h/2])cylinder(h=h+0.1,r=hd/2,center=true);
-}
+    translate([w/4,0,h-emd]){
+        scale([0.4,0.4,1]){
+            linear_extrude(height = emd+q){
+                import("src/GONICUS-Logo_2022_logo-only-new.svg",center=true); // logo
+    }}}
+}
\ No newline at end of file
diff --git a/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only-new.svg b/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only-new.svg
new file mode 100644
index 0000000..f4f4579
--- /dev/null
+++ b/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only-new.svg
@@ -0,0 +1,158 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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diff --git a/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only.svg b/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only.svg
index e059604..dc8c222 100644
--- a/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only.svg
+++ b/openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only.svg
@@ -1,21 +1,42 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg
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-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:xlink="http://www.w3.org/1999/xlink"
    xml:space="preserve"
    style="enable-background:new 0 0 841.89 595.28;"
    viewBox="0 0 841.89 595.28"
    y="0px"
    x="0px"
    id="Ebene_1"
-   version="1.1"><metadata
+   version="1.1"
+   sodipodi:docname="GONICUS-Logo_2022_logo-only.svg"
+   inkscape:version="1.4.2 (ebf0e940d0, 2025-05-08)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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+   id="namedview1"
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+   bordercolor="#000000"
+   borderopacity="0.25"
+   inkscape:showpageshadow="2"
+   inkscape:pageopacity="0.0"
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    id="metadata33"><rdf:RDF><cc:Work
        rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
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@@ -49,38 +70,40 @@
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