Falcon2 loud vibration, belt vibrating badly

Ive been happy with the Falcon2. Had to replace the motherboard on it… but 45$ with ship. Not bad.

Major issue atm, while the head is moving left & right on the “carriage” bar, the belt vibrates very bad. It roars while its moving. I have re adjusted the belts and the laser head to try and stop the issue. It did not fix the issue. Any thoughts?