This is my first 'structible so I decided to do something very simple yet helpful to the right people. I followed several very good Instructables on making your own CNC machine however, I ran into some trouble moving my tables using NEMA-17 stepper motors. These motors don't have a lot of torque and due to the difficulty of getting the leadscrew nut perfectly straight I ran into some issues with the leadscrew being difficult to turn. My solution was to create a mount for the leadscrew nut that could flex and conform to the path of least resistance on the leadscrew. The final product is a piece of rubber hose with a threaded sleeve pressed into it and mounted to my tables by two metal bars that clamp the hose in place when tightened down.