diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -26,6 +26,10 @@ __python > 3 (for python2 use branch py2)__
 
 ![cycloid-gear](examples/cycloid-gear.png)
 
+### Cycloid Rack
+
+![cycloid-rack](examples/cycloid-rack.png)
+
 ### Spherical Involute Bevel-Gear
 * Spiral  
 
diff --git a/examples/cycloid-rack.png b/examples/cycloid-rack.png
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index 0000000..f2b5bf6
Binary files /dev/null and b/examples/cycloid-rack.png differ