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A-Z GLOSSARY OF TERMS

A complete glossary of terms used in woodworking and routing.

A B C D E F G H I J K L M N O P Q R S T U V W

Back-cutting
Back-cutting
The process of cutting in the opposite direction to the rotation of the cutter. Back-cutting should be avoided, a notable exception being the use of a suitably constructed jig, for example a dovetailing jig.
 
Back-fence
Back-fence
A back-fence is a 90 degree surface on a router table against which the timber is passed to keep it in an exact position relative to the cutter.
 
Barley Twist Moulding
Barley Twist Moulding
A spiral pattern resembling a twisted rope. This type of turning can only be produced easily with the Trend Router lathe.
 
Barrel Moulding
Barrel Moulding
A moulding with a convex or bellied profile. Also called a ´pulvenated´ moulding.
 
Batten
Batten
Any straight-edged piece of timber used as a guide against which the router or portable saw passes
 
Bead
Bead
A small rounded (convex) profile or moulding. Available in numerous variations and sizes.
 
 
Beam Trammel
Beam Trammel
A straight bar with a pivot point onto which the router is mounted to cut curves and circles.
 
Bevel Edge
Bevel Edge
An angle applied from top to bottom of a piece of material.
 
Biscuit Dowel
Biscuit Dowel
These are dowels compressed in the form of an oval biscuit with roughened surfaces to give a key for PVA glue to adhere to.
 
Biscuit Jointing
Biscuit Jointing
Means of jointing timber and composite boards using dowels shaped like oval biscuits. Special ´biscuit´ jointing power tools are available but the techniques are easily carried out using a conventional router.
 
Bit
Bit
Term used in the USA and sometimes in the UK, meaning a router cutter (all grades). Available in straight form, helical shaped, or with a multitude of mould profiles.
 
Blockboard
Blockboard
A board made from cores of timber bonded together and covered with veneer on both sides.
 
 
Bolection
Bolection
A raised and rebated moulding which projects beyond the face of the frame into which it is inserted.
 
Bottom Cut
Bottom Cut
A straight bit with cutting edges on the end to allow plunge cutting.
 
Box Corner Joint
Box Corner Joint
Another term for a comb joint. Grooves for comb-jointing are usually cut by a series of stacked groovers mounted on an arbor. Box corner joints can also be produced with a straight router cutter in conjunction with a suitable jig.
 
Box Jig
Box Jig
A guiding device which involves the workpiece being held within a box structure for machining or drilling to a pattern.
 
Brazing
Brazing
A form of welding that secures a carbide cutting edge to the steel body of a router cutter.
 
Break-out
Break-out
Term used for describing the splitting out of the edge of material being machined.
 
 
Bridle Joint
Bridle Joint
A joint similar to a mortise and tenon but with the positions of the mortise and tenon reversed.
 
Built-up Cornice
Built-up Cornice
A cornice produced by joining several sections together.
 
Built-up Timber
Built-up Timber
This refers to timber which has been jointed from smaller sections.
 
Burning
Burning
This occurs generally when routing at too slow a feed rate, taking too deep a cut, or when the non-cutting part of the tool is rubbing the workpiece. It can also indicate that a router cutter may need resharpening.
 
Burrs
Burrs
Small multi-fluted rasps used for deburring, cleaning welds and woodcarving. Normally used in portable hand grinders or light duty hand routers.
 
Butt Joint
Butt Joint
A joint made when two pieces of wood are joined together with no overlap, shoulders, or tenons.
 
 
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