For that one Z rod that has the wobble in it. If all your other Z rods are straight, install this floating bracket and keep the one wobbly rod from zigzaggling all your prints. Thanks to twotimes for the bracket design; I thickened the outer portion, widened the screw holes, and reduced the vertex count to keep the hole printing ruly.Print the wobble bracket, then remove the "zg" wooden piece from the Z stage on the rod that's wobbly. Install the wobble bracket under the Z stage. For extra wobble resistance, leave out two of the screws. Then level out your Z stage platform again and you're done!