 | Measuring and Scribing - Course: Manual Woodworking Techniques. Instruction Examples for Practical Vocational Training |
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Instruction Example 1.1.: Board
Measuring and scribing of wide faces is practised on the board.
Material
Unedged-sawn boards of hard- or softwood.
Measures depend on the work order but should be no less than
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thickness: |
30 |
mm |
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width: |
200 |
mm |
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length: |
1500 |
mm |
Tools/Measuring and testing means
Folding or steel rule or measuring tape, working square
Auxiliary accessories
Working stands, work or carpenter’s bench, straightedge, pencil, coloured chalk (if available)
Required previous knowledge
Use for measuring units, reading of drawings, knowledge of the features and defects of the species of wood
Explanations to the working drawing
1 straightedge, 2 pencil
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Sequence of operations |
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1. |
Prepare the working place. |
Check for the completeness of the working materials. |
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2. |
Put the board on the stands or on the work bench. |
The number of the stands depends on the board’s length. |
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3. |
Check the board for wood defects. |
Check which defects can be processed without loss of quality. |
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4. |
Determine and scribe the length reference edge with the straightedge and the pencil. |
Consider if a part of the natural bevel can be included in the workpiece. |
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5. |
Mark off the width sizes and scribe them with the straightedge and the pencil. |
Pay attention to the additional working allowance. |
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6. |
Mark off the length sizes and scribe them with the working square and the pencil. |
Pay attention to the additional working allowances. |
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7. |
Check the marked off sizes and compare with the working drawing. | |
Figure
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