It should be pretty straight-forward to get a Shapeoko 4 trammed and dialed-in so that it will cut mirror-imaged inlays which have a consistent glue line.
Big things are:
work from large → small — level table, level and parallel and plumb Y-axis rails, gantry level and at right-angles to Y-axis, Z-axis carriage level and plumb —if need be, adjust the mount for nod/yaw
