diff --git a/UrumbotXYZ/README.md b/UrumbotXYZ/README.md
index 7dee7a906780fac7d61a9d2b3c9fad83447d64c2..deae55615fbacfad255a0e142251b4e43f703eb6 100644
--- a/UrumbotXYZ/README.md
+++ b/UrumbotXYZ/README.md
@@ -14,3 +14,7 @@ A short z-axis was mounted on the x-beam of the Core-xy table.  The first iterat
 
 The same axes were rearranged so that the z-axis was fixed relative to the frame, and the xy- carriage supports a moving table.  This arrangement was nearly stiff enough to machine PCBs and wax.  [Details](./fixed_axis/README.md)
 
+
+### Machine with short z-axis fixed to the frame.  Moving table with double x-beam.  May 2022
+
+[Details](./fixed_z_axis_may_2022/README.md)