Messy Y graphs

Looking for guidance on where to look next on a VC4 500 IDEX. Y belts are the exact same length and same number of teeth. Belt tension meter (the PFMakes printed version) shows repeatably similar tension between all the belts. Cables and wires on the tool heads are zip tied in multiple locations to minimize any issues. I have double checked hardware was tight. I removed the decorative corner bracket covers on the front because they were loose. Despite all that, my Y graphs are a complete mess and honestly the whole machine resonates on the Y test. Any guidance is appreciated.

Thanks.
t0_resonances_y_2025-01-13-235018.png
t0_resonances_x_2025-01-13-234954.png
t1_resonances_y_2025-01-13-235018.png
t1_resonances_x_2025-01-13-234954.png
y_tension_comparison_2025-01-13-233816.png
x_tension_comparison_2025-01-13-233750.png
Was this page helpful?