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4.0 Glossary
Some terms relevant to the scroll saw:
Beam strength: A blade's resistance to backward
deflection caused by pressure of the workpiece.
Bevel edge cut: Tilt of blade between 0° and 45° to
perform angled cutting operation.
Blade drift: Deviation of blade from a straight line.
The smaller the blade, the more prone to drifting.
Blade tracking: How the blade moves through the
cutting path.
Contour cut: Cutting outside the workpiece line.
Crosscut: A cut made across the grain of a
workpiece.
Deflection: Tendency of blade to be pushed
backward or sideways under pressure from the
workpiece.
Feed rate: Linear travel of workpiece into blade.
Freehand: Moving the workpiece into the blade
using only the hands, without a fixed positioning
device.
Fret work: Cutting inside the workpiece; also called
open work, or pierce cutting.
Kerf: The resulting cut or gap made by the blade.
Kickback, or Lift: The tendency of workpiece to
rise off the table due to being caught by the blade.
Leading edge: Edge of workpiece that first gets
pushed into blade.
Parallel: Position of saw arm equal in distance at
every point to the table surface.
Parallel link: style of scroll saw in which a motor
pushes rods in upper and lower arms that move
articulated arms holding the blade. (The JET scroll
saw is this type.)
Perpendicular: 90° (right angle) intersection or
position of vertical and horizontal planes, such as
saw blade to table.
Pin-end blade: Blade that requires a pin to secure
it to the saw. (These are not suitable for intricate
fretwork.)
Plain-end blade: Blade that slides into a clamp
without need of a pin holder. These are preferred for
delicate fretwork. (The JET scroll saw uses this
type.)
Rake angle: Angle of a blade tooth in respect to a
line perpendicular to the back edge of blade.
Relief cut: Extra cut to remove waste material and
prevent the blade from binding when cutting a curve.
Rip Cut: A cut made along the grain of the
workpiece.
Scroller: User of a scroll saw. Sometimes called
"scroll-sawyer" or "scroll-sawer".
Scroll work: General term for designs with spirals
and rolling curves.
Stack
cutting:
together for simultaneous cutting. (CAUTION:
Pieces must be properly taped or glued together to
prevent sliding.)
Throat capacity:
column; identifies maximum workpiece size.
Trailing edge: Edge of workpiece that last contacts
blade.
6
Placing
multiple
workpieces
Distance from blade to body
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