Overall Project Objectives You will develop your marking out
skills. You will develop your ability to read and follow working
drawings Master the use of practical hand tool Develop your
exposure to power tools and machines. Understand how woodwork
joints can be used in different ways.
Slide 3
What does the digger project include? The digger project in
cooperates a number of woodworking joints: Mortise & Tenon
Bridle Joint Housing Joint Screwed Joint It also entails shaping of
the body which will include processes such as, sawing, drilling,
sanding, chiselling and band sawing. Accuracy and patience is very
important for the completion of this project.
Slide 4
What materials are we using? The materials we are using to make
this project is called red deal, its is a soft wood and falls under
the pine wood classification. It is called red deal as its grain
has a reddish colour through it. The wood is quarter sawing for
maximum strength. Red deal comes from the scots pine tree
Slide 5
5 steps to Marking out Face side / Face edge Overall Length
Joint Position Joint Detail Any other Detail FOLLOW THIS PROCEDURE
AND NO OTHER!!!!!!!
Slide 6
The different parts of the digger
Slide 7
Orthographic Projection
Slide 8
Step one: The Body The 4 pieces for the body and the piece for
the bucket will be market out and cut from the 44 x 44 piece
Slide 9
The cab and arm block The cab is 80 x 44 x 44. The slope needs
to be cut on the bandsaw and smoothened down using the Belt sander
Arm Block 40mm 22mm 25mm 22mm 6mm 50mm Diameter 6.5mm
Slide 10
Glue the Body
Slide 11
Step 2: Marking out the arms Mark out angles to allow the arms
close. Measure down 15mm either side. 25mm 2 of these arms are
needed 25mm
Slide 12
Step 3: Tracks Mark out the trench and curve of the tracks, the
trench is 10mm deep 70mm 40mm 25mm
Slide 13
Step 4: Spacer between the body and tracks A round spacer is
needed between the body and tracks to allow it spin. Screw is used
to fasten the body to the tracks
Slide 14
Step 5: Mark out the Bucket Once the tenon is marked out you
must free hand sketch on the shape of the bucket 19mm 25mm 6mm
Slide 15
Preparation for finish Using the belt sander and sand paper and
the sanding block, sand the whole digger down using the different
grits of paper. Make sure all pencil marks are removed
Slide 16
Assembly
Slide 17
Choose from which finish you prefer. Varnish Danish Oil It
would be better to disassemble the project, apply the finish and re
assemble.