I just finished machining the last part - top plate - for my new Z axis assembly.
Here is the You Tube video link for those interested … https://youtu.be/IiZsvbqSIW4
With this complete the next step will be to remove the Z20 from my Woodworker X50, and assembly and install my new design.
If that goes well, I will spend some time calibrating and tramming, and then complete some comparison tests (remeasuring deflection, machining aluminum, etc…). I will share the results when the aforementioned work is completed.