This post displays the four recordings used in construction of the instructional digital video. They display the techniques and processes required within the construction join in descending order; the marking out, the saw cuts, the chiselling and cleaning and finishing the join.

Imagery Used In Digital Video Composition

Image 1 – This is a set of safety glasses; these can be warn as eye protection against pieces of timber that may become projectile while chiselling.

Image 2 – This is a bench hook; it is traditionally used during sawing and chiselling exercises to secure the job.

Image 3 – This is a marking gauge; the marking gauge is used during marking out to scribe lines parallel to an edge. It has a depth adjustment allowing for marking at various depths in from the edge of the material.

Image 4 – This is a chisel – chisels are used as a cutting device, generally in accompaniment with a driving tool such as a mallet. They provide a means of removing material quickly along while also allowing for fine shaving material to suit specifications etc.

Image 5 – This is a tenon saw – it is used for making straight cuts into material

Image 6 – This is a tri square – it consists of a stock and a blade which form a 90 degree angle. It can be used during marking out processes as a guide for square lines and can also be used in order to check the squareness of joins.

Image 7 – These are two sections of timber cut out to fit together as a halving join

Image 8 – This is a section of timber sitting securely in the bench hook

Image 9 – This is a woodworking vice – it is used for securing material during processes such as sawing.

Image 10 – This is a finished example of a halving join; note the two sections sit flush together and the angles are square.

Image 11 – This is an example of the marking out required to produce a halving join; note the waste has been marked on the section to be removed.

Image 12 – This is another example of a completed halving join.

Image 13 – this is another example of the marking out required for a halving join.

The Halving Join - Example Assessment Task

Reflection – A basic example on the halving join

There are three significant factors in the construction of a halving joint that influence accuracy and strength. Marking out is the first process to take place and accuracy within marking out influences the accuracy of processes to follow. Within marking out it is essential to maintain squareness and trueness to measurements. The next defining factor is the saw cuts. As for the marking, squareness in the saw cuts must be maintained. The depth of the cut must also be considered when making a saw cut. The third defining factor is chiselling. Removing the waist through the use of a chisel requires control and accuracy if a flush join is to be produced. In order to produce high quality work during cutting and chiselling the section of timber needs to be secured in a wood vice.

Requirements of a Halving Join

http://www.mr-dt.com/manufacturing/woodjoints.htm

http://chestofbooks.com/home-improvement/woodworking/Woodwork-Joints/Setting-Out-The-Halved-Joint.html



http://year1shopfitting.wikispaces.com/Basic+Joints

These are three basic pictorial representations of a halving joint. As the images suggests, the halving join consists of two sections of timber, both with an opposing section removed in order to fit flushly together effectively creating a strong and solid joint.







http://www.dezeen.com/2010/02/03/prairie-chair-by-von-tundra/comment-page-1/

This chair displays a variety of halving joints. The halving joints used in the chair occur where the rails attach to the legs.




http://www.boatbuildingacademy.com/woodworkingskills.htm

The legs on this table have also used halving joints although they are untraditional as they have to follow a curve rather than a more basic square join.


When constructing a halving join it is important to take into consideration the characteristics of the materials being used. Timber that is defective will reduce strength within the structure and make it difficult to produce a flush or square join. These are a few examples of common defects that may be apparent within timbers.

http://www.idostuff.co.uk/sections/DIY/Timber%20preparation%203.html

Deconstructions

Example 1

Technique and physical demonstration
Technique demonstrated is of high quality and to conventional standards – accuracy and efficiency are particularly evident.

Fundamental Terminology
A variety of fundamental terminology is evident.

Articulation Description and Annotation
Clear and well articulated descriptions accompanying and complementing demonstrations – effective self talk was used although there was little to no annotation.

Quality of Picture and Camera Work
High quality camera work – a variety of views were integrated from multiple angles allowing for better comprehension.

Safety
Does not highlight safety issues associated with using a chisel.

Example 2

Technique and physical demonstration
Technique demonstrated is of high quality although conventional methods are not implemented – accuracy and efficiency are very high.

Fundamental Terminology
Fundamental terminology is used during some sections of the video.

Articulation Description and Annotation
The dialogue is muddled and there are large amounts of noise interference which inhibit auditory description. In addition to this there is no annotation to aid in development of understanding.

Quality of Picture and Camera Work
The camera work is low; very few camera angles are used and the image is shaky and unsteady.

Safety
There are no safety issues apparent.

Vodcasts - 2 examples

Example 1 – How to make a Mortise and Tenon joint



John Bullar from WOODWORKING plans and projects magazine uses hand tool techniques for mortice & tenon joints. Hand cut mortise and tenon Video in HD www.furnituremaking.org

Retrieved form: http://www.youtube.com/watch?v=t3jByNHeGxs

Example 2 - Creating a dovetail joint with hand tools



Lie-Nielsen Toolworks, Inc, which designs, manufactures and sells a wide variety of woodworking hand planes and tools, held 2 days of interactive demonstrations in the Building Construction Technology's area during January 2009. This demonstration, presented by the Homestead Heritage School of Woodworking, shows how to make dovetail joints by only using hand tools.

Retrieved form: http://www.youtube.com/watch?v=5hlJWN4ERT8

Rationale - the halving join

This portfolio will endeavour to compile resources and techniques required to produce an instructional digital video of the processes required in cutting out a halving join. The digital video will recruit of a variety of different digital materials including imagery, video, annotation and audio in order to convey its purpose. In doing this the video will take into consideration aspects such as safety, technique, materials and equipment.