Operations on Smooth Miller and Thicknessing Miller - Course: Mechanical Woodworking Techniques. Instruction Examples for Practical Vocational Training: Instruction Example 2.5.: Wall Shelf

Operations on Smooth Miller and Thicknessing Miller - Course: Mechanical Woodworking Techniques. Instruction Examples for Practical Vocational Training

		(introduction...)
		Preliminary Remarks
		Instruction Example 2.1.: Frame Piece
		Instruction Example 2.2.: Frame Piece
		Instruction Example 2.3.: Frame Piece
		Instruction Example 2.4.: Grating
		Instruction Example 2.5.: Wall Shelf
		Instruction Example 2.6.: Frame

Instruction Example 2.5.: Wall Shelf

Practise milling of broad and narrow faces on the smooth miller.

Practise milling to thickness and width on the thicknessing miller for producing piece parts for a wall shelf.

Material

- Sawn timer

Dimensions:

Length	800 mm
Width	200 mm
Thickness	25 mm

- 2 x sawn timber

Dimensions:

Length	400 mm
Width	190 mm
Thickness	25 mm

Figure

Machines

Smooth miller, thicknessing miller

Measuring and testing means

Solid steel squares, folding rule, vernier caliper

Auxiliary

Feeding device

Necessary previous knowledge

Reading drawings, measuring and testing “Manual Woodworking Techniques - Planing the Broad and Narrow Faces by Hand”.

Sequence of operations	Comments
1. Place the material at disposal, set the working width and the depth of the cut on the smooth miller.	Check the safety devices, make use of the ear protector.
2. Mill a broad and a narrow face.	Take notice of surface roughness when guiding the workpiece. Make use of the feeding device.
3. Control the broad and the narrow face.	Check flatness of the broad face and angularity of the narrow face.
4. Set the thicknessing miller to the required dimension. Switch on the machine and mill the workpiece to thickness and width.	Take into account maximum chip removal. Do not put in workpieces which are of quite different thickness, side by side.
5. Control dimensional accuracy.	Dimensional inspection with folding rule or vernier caliper.
6. Completion: Mark the piece parts according to the drawing and cut them to size. Smooth off edges and comers. Join supports and shelf by bolted connection and flat comer joint.

Wall Shelf