Rework design as the original printed in two parts. The connection to the frame was detached from the bar. I reworked it and added a slight bevel to the visible surfaces.
Once installed it reduced the deflection\vibration in the Z axis considerably on my own machine. Give it a try and let me know what you think.
Will probably work on other printers that use 2020, 2040 extrusion.
I printed mine with Gold PLA at 195 degrees, and 50 degree bed (no enclosure required)