Dimensional accuracy is off

I’ve had my Taz 6 for over a year now and it has been wonderful, but my current printing needs call for more solid dimensional accuracy. I’ve gone through and ensured belts are tightened, lead screws are properly lubed, and the settings in Cura look good. However, all of my parts continue to be too thick. It is like there is an extra wall being added that is not accounted for in the software and I cannot make it go away. Any thoughts?

Flow. Reduce your flow rate(percentage). Plastic expands. I have mine set to 90% for PLA. Every plastic will be different, you’ll have to experiment. I printed a 10cm x 10cm cube and then measured the walls thickness with a micrometer.
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