Hello Zachariah - are those measurements in inches or mm? Assuming they are inches since you say the cut is 2.5” tall. Frankly, 0.02” is not what I would expect. You should be getting sub-0.005” accuracy. Though it probably matters what you are measuring with - digital calipers?
Have you tested if the machine is calibrated properly? Lots of good suggestions in that thread.
-Tom