The 3 PVC plastic tracks (x, y, and z) provide a channel for the blocks to slide within to move the robotic arm. Construct the x-track according to the drawing PDF. The exact placement of the 1/8 diameter tap screws is not very important as long as the screws don't collide. After you have constructed the x-track, construct the Y and Z tracks in a similar way according to the respective drawing PDF files. It may be helpful to cut the X, Y, and Z blocks first so that you can ensure there is enough room for the blocks to slide through their respective channel.

The downloadable PDF files below contain the drawings and dimensions for the x, y, and z track. Follow the drawing files precisely to construct the robot.