by Number One | 20170424
Visitor, do you know knots from kneepads? Understand grain and growth rings? Here's a chance to show what you know. I've got a group of students coming in to the workshop next week to learn about Timber and I need a couple handouts to help introduce the basic concepts to them.
First thing I need is a diagram. Draw a piece of timber in isometric projection, showing all the following.
- Grain direction
- Tension strength
- Compression strength
- Torsional strength
- Sheer strength
For the listed forces, use colored arrows and make them reflect the various strengths of timber. In other words, arrows should be longer, fatter, or bigger when showing forces Timber resists better.
Use different colors for each type of force, with a label or a key to distinguish them. As you know, timber is stronger in one direction than others for specific forces; show that using the arrow sizes as well.
Here's a simple picture of arrows showing two forces:
Put your diagram into a google Doc, then link the doc here. Be sure to share it with Number One, or he won't be able to see it to give you any credit you earn!
The second part I need is some explanations or outlines of the following items. This should not be longer than one page; it will go on the back of the diagram you just created. Make it a second page in the same google Doc.
- Compare the benefits and drawbacks of hardwoods and softwoods.
- Contrast man-made and natural timbers; outline the advantages and disadvantages of each.
- List at least 4 common finishes that can be used with timber and describe the benefits of each (aesthetics is one obvious benefit, but there are others for many finishes, as you know - describe those for each of the finishes you choose).
Thanks, Visitor. This will help greatly when those juniors arrive.