I have pasted the code I used to generate this simulation below: # importing libraries import numpy as np import pandas as pd import matplotlib.pyplot as plt %matplotlib inline # Generating part measurement data df = np.random.normal(15.05. When you have parts that you want to fit in an opening, tolerance stackups are a tool that allow you to determine whether or not your parts will always² fit in your opening, even if you are making hundreds of thousands of these assemblies.Ī tolerance stackup is a way to create a loop that includes each critical dimension in the “stack.” It enables you to look at the dimensions and the tolerances for these values to figure out if your design will work and update accordingly. This is where tolerance stackups come in. So if you want to bin, you will need to be willing to spend a lot of time and money doing it. This does work, but measuring parts takes time. You could measure each part and pair the larger yellow pucks with the smaller red pucks and force everything to work. In this scenario, your yellow puck height has a tolerance¹ of ± 1 mm. You may design your yellow puck to be 30 mm tall, but the pucks will more likely be sized somewhere between 29 and 31 mm tall.
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