3D Printable Makerslide Actuator mount

This is an attempt at a 3d printable actuator using makerslide and .5in acme rod. I saw a part where a washer was used as the metal contact point for the eccentric spacer. Using this idea and some parts I had around I started designing this. I have no idea if it works as I do not have the bearings for the end bearing mounts, but am still working on it. Right now the printable sleeve for the nut almost works. There is a bit too much flex for the v wheels to line up on the rails when tightenin