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How do I calculate shrinkage due to temperature change?
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I'm trying to 3D print some parts for model rockets and I noticed that the engine fits really really tightly. I know that ABS shrinks as it cools (as do most materials), and I know the linear temperature expansion coefficient for ABS is 73.8xE-6 m/m K.
Am I correct in saying that the object will scale this much:
73.8E-6 * dT * 100%
73.8E-6 * (20-260)C * 100% = -1.7712% ?
X * (1-.017712) = 100
X = 101.8%
So I need to choose a ~ 102% scale in my software?
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