HicTop 3DP-11 Z-axis upgrade

I decided to start from scratch. This Right end to the X axis was created from scratch. The idler pulley is designed to accommodate the smaller pulley bearings used by HicTop. In addition, I wanted to experiment with a plastic lead screw nut to see 1) how does it hold up and 2) can it eliminate float on the z axis. I have been using it for a few days and so far, it is working well. I am getting the best quality prints on this printer. Enjoy.

The linear bearings sleeve is closed and is press