Wanhao Duplicator 7 backlash nut converter

This is to convert the four holes in D7's gantry to accept a more common anti-backlash nut that has a smaller shoulder and smaller arrangement on the four securing nuts.

I used it to change to a TR0801 lead screw. That is 8mm diameter and 1mm pitch. Using this I shrank down my Z wobbles and errant layer woes. They did not disappear, but the were very, very small.