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Precision, Geometry, and Color > Why Precision Manufacturing Matters

Why Precision Manufacturing Matters

It doesn’t take very long to realize something very important about LEGO pieces. Every element is manufactured to a very high degree of precision, not unlike the accuracy seen in the manufacture of aircraft parts. Because this precision applies to such a small scale, this tight control of plastic molding may not be evident immediately. If you snap a few bricks together and they are off by a hair’s width, it probably won’t bother you too much. But what if you begin to stack up more and more bricks? How long will it take before even a small difference in quality control begins to show itself?

Take Figure 1-19 as an example. Imagine you are making a doorway. On the right, you use properly made bricks, each exactly the height it is supposed to be. On the left side, you use a handful of bricks that weren’t made with the same precision and care. Perhaps they were made just a tiny bit too short, say, by about the thickness of a pencil mark. It’s clear from Figure 1-19 that only a few layers of bricks with such a manufacturing variance would begin to play havoc with your construction. How would you join these two mismatched walls?


  

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