CHAPTER 10, LESSON 1 of 1
GOAL: To understand the importance of making adjustments or corrections at the subassembly stage.
You've measured, marked, cut and shaped the workpieces, and now you're bringing them together in a subassembly. This lesson shows why the subassembly stage is the time to make any necessary alignment adjustments.
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| It's easiest to make corrections before assembly gets too far along.
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Making local corrections is possible if assembly of the final project is broken down into a series of subassemblies (see Chapter 9, Lesson 2).
Once the entire project is assembled, it will be much more difficult — if not impossible — to fit tools into areas where a local correction might be needed, such as flush planing of a rail-and-leg joint. Also, the simpler the assembly, the easier it is to hold on the bench. The final assembly might be too large and unwieldy.
One other reason to make local corrections is that any errors not rectified at this stage run the risk of being magnified on final assembly, perhaps compromising the accuracy and integrity of the final project.
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