
| Working with Driling Machines - Course: Mechanical Woodworking Techniques. Instruction Examples for Practical Vocational Training |
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Manufacturing of bores for dowel and screw joints to mount a wall shelf.
Material
- 2 prefabricated decorative boards (Instruction Example 03.2.)
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length: |
500 mm |
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width: |
70 mm |
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thickness: |
20 mm |
- 1 planed board
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length: |
500 mm |
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width: |
80 mm |
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thickness: |
20 mm |
- 2 planed and half-round cut boards
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length: |
160 mm |
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width: |
80 mm |
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thickness: |
20 nun |
- 12 flat head wood screws
- 4 wooden dowels

Machines and tools
Bench or pillar drilling machine, pencil, awl, drill with centering drill point according to the dowel and screw size, countersink, screwdriver, wooden hammer
Measuring and testing means
Folding rule, marking gauge
Auxiliaries
Clamping means, cold glue
Necessary basic knowledge
Measuring and marking
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Sequence of operations |
Comments |
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1. Preparing the working material Checking the machine for functioning |
Check for completeness |
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2. Marking and marking out the bores for the wood joints |
Determine the bore distance yourself! |
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3. Clamping the drill and drilling the through hole and bottom bores |
Selecting the drill according to the size of the screw and dowel diameters! |
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4. Clamping the countersink and countersinking the side boards for accommodating in the screw head |
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5. Manufacturing the dowel joints | |
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6. Manufacturing the screw joints | |
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7. Checking the joints for stability and cleanliness | |
