Vertex X,Y Linear Encoder Alignment

This article applies only to Post 2020 Machines Vertex X- and Y-Axis

Procedure

An orange spacer is required to perform the alignment procedure which can be requested here.

Remove all covers to be able to access the encoder readhead of the corresponding axis.
Make sure that the stage and the encoder readhead is positioned at the center of its travel.
Loosen the two screws that secure the readhead as well as the two screws that secure the encoder scale.
Place the orange spacer between readhead and encoder scale as shown in the image below:
Push down the encoder so that the readhead is as far down as possible. While maintaining downward pressure, tighten the screw of the readhead. Try to maintain the readhead centered in the slots.
Remove the spacer, move stage to the left end of the travel and check the gap by placing the spacer between readhead and scale.
Push the encoder scale down against the spacer and the readhead while tightening the screw again
A T-handle can be used to push the scale down by sliding it into the hole on the side of the scale like shown in the image below:
Repeat steps 6, 7 and 8 on the other end of the travel.
A new machine calibration should be performed after replacing or realigning an encoder.