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Chapter 25 Woodturning
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Woodturning lathe
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Drive mechanism Pulleys inside the lathe Drive speed
For safety, only your teacher should adjust the speed of the lathe – if in doubt, ask
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Centres Centres support the work while turning
The drive centre grips the end of the piece and it turns the wood with the speed of the motor. The hollow centre is used when boring a hole through the middle of the piece. Drive centre Live centre Hollow centre
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Tool rest Banjo & tool rest
The tool rest is adjusted when bowl turning
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Chuck and faceplates Chuck Faceplates
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Woodturning tools
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Gouges There are different gouges Roughing down Shallow fluted
Deep fluted
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Gouges Gouges are used to make coves
They are also used when turning bowls and dishes
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Skew chisel Beads and ‘V’grooves Skew chisel with edge swept back
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Taking measurements Callipers are used to
measure the round sections of turned wood transfer measurements from a drawing
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Safety Wear full face protection
Tie up long hair and secure loose clothing Remove jewellery Always get permission Secure work on the lathe and get it checked Rotate the piece by hand before turning on the lathe Switch off the lathe before making adjustments
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Preparing to turn – spindle turning
Join the diagonals to find the centres at each end of the piece Draw a circle in the square Plane down the corners Small saw kerfs can be cut into the ends for added grip Insert the drive centre Insert the piece into the lathe at both centres, lining the centres up carefully Adjust and tighten the locking handles Adjust tool rest and check the piece rotates freely
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Profiles Profiles show the outline of a turned piece
Profile templates assist in making copies of the same profile
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Drilling a hole Long hole boring kit
The piece is secured with a hollow centre in the tailstock Hole bored through the hollow centre half way Remove auger often to clear shavings Reverse piece and repeat the process
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Drilling a hole – alternative
Groove two pieces in the centre using a router Glue the two pieces together to form the blank
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Preparing to turn – Bowl/faceplate turning
Join the diagonals to find the centre of the piece Draw a circle in the square Remove the corners using a saw Locate the faceplate onto the centre of the blank and secure Faceplate is screwed onto the spindle of the lathe Adjust tool rest and check the piece rotates freely
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Joints Spigot and socket joints are used to join two turned pieces
A hole is drilled into one piece The spigot is turned on the other piece to match the hole
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