iParts can be a great way to simplify your parts library. However, I constantly hear that it's pain to remember which features to suppress for each configuration. My answer is to create rules with math.
We can write equations that provide values and then suppress the features based on those values. There are hundreds of ways to use these but I want to stress that sometimes this can get too complex. That is when you want to look into iLogic or Inventor Automation.
MathRules.ipt > http://www.box.net/shared/6efanavrhx
Created by Josh, Yet another CAD Geek
Props to my friend (and CAD Geek) Chris Weitzel for collaborating on these equations.
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