Locate the Carriage Mounting Plate, M10 Anti-BackLash Nut, 10-32 Knurled Thumb Screw, (3) #4 Pan Head Phillips Screws, and (3)#4 Washers.

NOTE: You should have tapped the 2 holes in the carriage mounting plate as part of the Preparing For the Build Steps. If you have not done that yet, please do so now.

The Carriage Mounting Plate is symetrical, so it does not matter which side you attach the Anti-Backlash nut to, so long as the orientation from the animation is kept in regards to the Anti-Backlash nut and the Knurled Thumb Screw

The #4 Pan Head screws will self tap into the Anti-Backlash nut. At this time, you should NOT fully tighten these screws.

You can however fully tighten the Knurled Thumb Screw.

A video demonstration can be found here.