Thursday, 18 February 2021
Conversion chart mm to km
Wednesday, 17 February 2021
7 basic tools in woodwork
1. Combination square: A combination square is a multi-purpose measuring and marking tool used in metalworking, woodworking. It is composed of a rule and one or more interchangeable heads that can be attached to the rule. Wikipedia. Video.
The square in the name refers to the 90° angle. To try a piece of wood is to check if the edges and faces are straight, flat, and square to one another. A try square is so-called because it is used to try how to square the workpiece is. Wikipedia. Video.
4. Marking gauge: A marking gauge, also known as a scratch gauge, is used in woodworking and metalworking to mark outlines for cutting or other operations. The purpose of the gauge is to scribe a line parallel to a reference edge or surface. It is used in joinery and sheet metal operations. Wikipedia. Video.
5. Carpenters pencil: A carpenter pencil is a pencil that has a body with a rectangular or elliptical cross-section to prevent it from rolling away. Carpenter pencils are easier to grip than standard pencils because they have a larger surface area. The non-round core allows thick or thin lines to be drawn by rotating the pencil. Thin lines are required for high precision markings and are easy to erase, but thick markings are needed to mark on rough surfaces. Wikipedia. Video.
6. Plane
Generally, all planes are used to flatten, reduce the thickness of, and impart a smooth surface to a rough piece of lumber or timber. Planing is also used to produce horizontal, vertical, or inclined flat surfaces on workpieces usually too large for shaping, where the integrity of the whole requires the same smooth surface. Wikipedia. Video.Friday, 12 February 2021
Timber
Parts of a Tree
The Trunk: The main stem of a tree, the trunk is the most important part of a tree for timber production.
The canopy (crown): this part of the tree is the uppermost part of the tree, made up of branches, stems, and leaves.
The roots are the part of a plant that attaches it to the ground or to a support, typically underground, giving water
and nourishment to the rest of the plant via numerous branches and fibres.
Inside of a Tree
Sapwood: most recent annual rings of a tree.
Cambium layer: growth area of a tree.
Heartwood: wood surrounding the core of the trunk.
Pith: central part of the trunk.
Growth rings: marks indicating the yearly growth of the trunk.
Bark: protective outside covering of the trunk.
How trees become timber
The trees are usually cut into smaller lengths on site and then picked up by a timber lorry, which transports
the timber to a processing site, such as a sawmill, paper mill, pallet, fencing or construction producer. At the
chosen site, the logs are debarked and bucked, or cut to the required length.
Different types of cuts
Plain Sawn
This cut of wood is common and is distinguished by its sawing method. The board is cut, turned 90
degrees then cut again. This cut also produces a minimal amount of waste.
Quartersawn
This cut of wood is distinguished by its grain pattern that runs vertically and has a straight, striped
appearance. Planks are cut by first dividing the log into quarters, then live sawing the wood. This cut has a higher
cost due to the manufacturing process and the lower yield of wood per plank.
Rift sawn
This cut of wood is the most expensive and least common. The planks are cut perpendicular to the tree’s growth
rings. This cut can provide a more modern look through the very linear grain pattern and is popular with oak and
maple species. However, it is difficult to get these types of planks wider than four inches across.
Defects in timber
Bow
When the converted timber is stored for a longer time, some timber planks may have a curve along its length, which
is known as Bow.
Wane
The edge part of the timber log contains a rounded edge on one side because of its original rounded surface. This
rounded edge is called wane.
Split
Split forms when a check extends from one end to the other end, which will split the wood into a number of pieces.
Twist
Twist forms when the timber piece is distorted spirally along its length. It looks like a propeller blade after twisting.
Chip mark
When the timber is cut through the planning machine, the parts of the machine may form chip marks on it.
Usually, they are indicated by chips on the finished surface.
Trees native to New Zealand
Kauri
Kauri is among the world's mightiest trees, growing to more than 50 metres tall, with trunk girths of up to 16 metres.
Rimu
A slow growing tree that can grow up to 50m high. It is recognizable by it’s shaggy looking foliage resembling an
old man's beard.
Matai
Matai or black pine is an endemic New Zealand coniferous tree that grows on the North Island and South Island.
Tuesday, 8 December 2020
Discovery Task Health
Tuesday, 24 November 2020
Minimum wage
A lot of people are saying that they think the minimum should be increased and a few people said that it should be made a living wage
while I can understand that it would benefit people making minimum wage it would mean that other jobs would need an increase to balance it out
Monday, 23 November 2020
Thursday, 5 November 2020
Veduino
In DTE term 4 we were focusing on making our own Arduino project. for this, we were making a vending machine using the Arduino the push the item out.
RESEARCH: We are going to be making a mini tabletop vending machine that will be powered by an Arduino code. We are making this because we saw a video on how to make it and we thought it looked cool.
Arduino and case: we were going to laser cut the case but we couldn't get it working in time so we weren't able to cut it, we didn't start on the Arduino because we were to focused on the box.








