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		Operations on Band and Circular Sawing Machines - Course: Mechanical woodworking techniques. Instruction examples for practical vocational training (Institut für Berufliche Entwicklung, 23 p.)
			(introduction...)
			Preliminary Remarks
			Instruction Example 1.1.: Frame Sections
			Instruction Example 1.2.: Frame Sections
			Instruction Example 1.3.: Frame Sections
			Instruction Example 1.4.: Curved Frame Sections
			Instruction Example 1.5.: Wall Shelf

Instruction Example 1.1.: Frame Sections

Undertaking oblong cuts using the circular saw bench for seaming and cutting frame sections to width.

Material

Figure

Unseamed boards

Length: 1200 mm
Width: 200 mm
Thickness: 45 mm

Machines and tools

Circular saw bench, circular saw blade with acute-angled teeth or gullet teeth

Measuring and testing means

Folding rule

Aids

Straight edge, feed strip, pencil

Necessary previous knowledge

Measuring and marking

Sequence of operations

Comments

1. Position material, mark with pencil and straight edge onto the board.

Mark so that the external edges are rectangular after cutting. Saw blade teeth tips should only protrude slightly beyond the workpiece thickness, set splitting wedge max. 10 mm behind the saw blade, guard hood must be 20 mm above the saw blade circle.

2. Set saw blade to workpiece thickness, set splitting wedge and guard hood.

3. Switch on the machine and seam the board as marked through oblong cut.

Oblong cut at scribed line requires special attention.

4. Switch off the machine.

5. Check the seamed narrow face.

Check the seamed narrow face for evenness visually or with straight edge.

6. Following machine standstill set stop rule at the width.

7. Switch on the machine and cut the board to width.

Push the board through with feed strip.

8. Switch on the machine.

9. Check the board for dimensional accuracy, if required reset the stop rule.

Undertake dimensional inspection using folding rule.

10. Oblong-cut the remaining boards, switch off the machine.

Ensure a tidy workplace, remove chippings to prevent accidents.

Possible addition

Seam further boards and cut to various frame sections of differing widths.

Frame Sections

Sequence of operations	Comments
1. Position material, mark with pencil and straight edge onto the board.	Mark so that the external edges are rectangular after cutting. Saw blade teeth tips should only protrude slightly beyond the workpiece thickness, set splitting wedge max. 10 mm behind the saw blade, guard hood must be 20 mm above the saw blade circle.
2. Set saw blade to workpiece thickness, set splitting wedge and guard hood.
3. Switch on the machine and seam the board as marked through oblong cut.	Oblong cut at scribed line requires special attention.
4. Switch off the machine.
5. Check the seamed narrow face.	Check the seamed narrow face for evenness visually or with straight edge.
6. Following machine standstill set stop rule at the width.
7. Switch on the machine and cut the board to width.	Push the board through with feed strip.
8. Switch on the machine.
9. Check the board for dimensional accuracy, if required reset the stop rule.	Undertake dimensional inspection using folding rule.
10. Oblong-cut the remaining boards, switch off the machine.	Ensure a tidy workplace, remove chippings to prevent accidents.