Problem with Y-axis

[GeoffSteer]

I’ve just been through correcting this problem myself. It’s a matter of getting the Y-axis rails parallel and the whole X-Carve frame square.
Here’s the most recent thread on the subject - started by @RogerAndre

X-Axis cut not staying square to Y Axis

Hi All, I spent yesterday evening measuring diagonals and trying to get everything squared up on my XCarve. Thought I had done pretty well, but this morning when I did a test cut I noticed that I still am having a problem with my horizontal cuts. When cutting 500 mm from left to right, at the right end of the cut it is about 2 mm higher than at the beginning. This results in a shape that is just slightly less than square. Cuts in the Y-Axis seem to be perfectly straight and square to the ta…