Y-Axis is not straight

1

UPDATE: I figured it out. Waste board was not square with the frame which naturally would mess with a straight cut.

I’m carving a straight channel Y-17", X-.22", Z-.47".
Problem is the “Y”. It goes off course from the center line over the length of the 17" by 1/8"
I don’t see any issues with the design. I’m using Easel to choose the speed and feed. Any thoughts?
I also made 4 locating holes so I could flip the project to carve the other side. They moved in the same direction as well.
The whole project shifted west when heading north.
https://photos.app.goo.gl/gFCHc71Y4wC3MC4x7

2

Probably your waste board lines are not in line with the Y travel line and you are lining material up using the grid lines. Put a v bit in the collet, send carriage to back of board and lower it smack on a line intersection. Raise bit a few mm and jog carriage full travel in y direction and see how far out of alignment the waste board is.