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close this bookMeasuring and Scribing - Course: Manual Woodworking Techniques. Instruction Examples for Practical Vocational Training
View the document(introduction...)
View the documentPreliminary Remarks
View the documentInstruction Example 1.1.: Board
View the documentInstruction Example 1.2.: Frame Timbers
View the documentInstruction Example 1.3.: Scribing with Templates

Instruction Example 1.2.: Frame Timbers

Measuring and scribing of wide and narrow faces of frame timbers is to be practised.

Material

Cut and planed strips of hard- or softwood. Measures depend on the work order, e.g.: final sizes:

thickness:

24

mm

width:

50

mm

1st length:

1000

mm

2nd length:

500

mm

Tools/Measuring and testing means

Folding rule, scriber, try square, marking gauge

Auxiliary accessories

Work bench or carpenter’s bench, screw clamp, pencil

Required previous knowledge

Use of measuring units, reading of drawings

Explanations to the working drawing

(1)

upright timbers

(2)

crosspieces

j

angle at the reference edge

d

thickness

b

width

l

length

Sequence of operations

Comments




1.

Prepare the working place.

Check the tools.




2.

Mark the reference edges.

The best side of the timbers points inwards.




3.

Draw the timbers together.

Mistakes are avoided.




4.

Parallel timbers are clamped together with a screw clamp.

In this way uniform marking off of sizes is possible.




5.

Mark the final length size and the finished dimensions with the try square and the scriber on the reference narrow face.

Use the scriber only there where later chip-forming processes are carried out, otherwise use a sharp pencil.




6.

Unclamp the timbers and transfer the marking onto the wide face by means of the scriber and the try square.




7.

Set the marking gauge and scribe the finished dimensions.

The finished dimensions depend on the type of wood joints.




8.

Check all markings.




9.

Compare with the drawing.


Figure