DEMO Technology I & II - page 30

12
5.4.
Cutting and sawing
There are several
tools
for cutting wood, depending on the type of wood or cut
you want to make.
Understand
24.
Which of these saws has a support on the back? What is it for?
❚❚
Tools:
Handsaw
: Used to make straight cuts.
Tenon saw
: Used to make more precise cuts.
Keyhole saw
: Its thin blade can be used to
make curved cuts.
❚❚
Saws:
Coping saw
: Used to make different cuts on
thin wood.
Hack saw
: Used to make straight cuts.
Fret saw
: U-shaped with flat or round
blades.
How to use a handsaw:
1.
Draw a line on the wood.
2.
Before cutting, fix the piece with clamps so it doesn’t move or vibrate.
3.
It helps to make a small groove in the wood to start.
4.
Hold the piece with your free hand while you cut.
5.
Hold the saw at a 45° angle to the wood.
6.
Use the whole blade, at a moderate speed and put on some pressure as you cut.
How to use a fret saw:
1.
First choose the correct blade. Thin round blades or flat blades with a lot of teeth are
used to make more precise cuts.
2.
Loosen the wing nuts to change the blade.
3.
Fix the blade to the part nearest the handle first, with the teeth facing down or out
(with flat blades) and tighten the nut with plyers.
4.
Pull the blade and tighten the second wing nut.
5.
Draw a line on the wood.
6.
Before cutting, fix the piece with clamps so it doesn’t move or vibrate.
7.
It helps to make a small groove in the wood to start.
8.
As you cut, use the whole blade, holding it perpendicular to the wood.
ADVANCE
EDITION
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