Falcon 2 not cutting straight

Hello all. I am new to the community. I am just starting out on my laser journey and am looking for some help. I finished setting things up and am having a problem that I can’t figure out. My machine won’t cut a straight line on the x axis. The y axis cuts fine. I checked the four screws on the back of the gantry that was suggested by people on a Facebook group but they were all tight. I also checked other screws but they all seemed fine as well. I checked my machine and gantry for squareness and all those were fine. Any help would be greatly appreciated.

Hi there.
You need to check if x axis is parallel to the frame.
If you want some hints/tips on aligning the axis with the frame, check this post Falcon 2, Frame out of alignment
Let us know if you found your solution!