
| Working with Driling Machines - Course: Mechanical Woodworking Techniques. Instruction Examples for Practical Vocational Training |
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Manufacturing of large through holes to produce a decorative board.
Material
A planed board
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length: |
500 mm |
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width: |
70 mm |
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thickness: |
20 mm |

Machines and tools
Bench or pillar drilling machine, pencil, marking gauge, awl, round shank Forstner bit Ø 30 mm
Measuring and testing means
Folding rule, stell square
Auxiliaries
Clamping means
Necessary basic knowledge
Measuring and marking
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Sequence of operations |
Comments |
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1. Preparing the working material |
Check for completeness |
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2. Marking the board, determine the bore distances yourself, marking out the bore centres |
Pay attention to the bore distances to be regular! |
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3. Clamping the drill and placing the board |
Adjusting the bore centres exactly! |
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4. Carrying out the bores | |
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5. Cleaning the board | |
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6. Checking the bores |
- regularity of the bore distances |
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7. Manufacturing a second decorative board | |
