Teknatool LITE G3, Quick Start Instruction Manual

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SCREW CHUCK - WOODWORM SCREW
The woodworm screw (sold separately) provides a convenient method for holding a bowl blank
to cut a recess to mount on the LITE G3 50mm (2in) jaws. Jaws must be mounted on the chuck
before the woodworm screw
– See diagram. (Some models Woodworm sold separately, order
SKU 10006) .
Open the jawslide and insert the
woodworm screw in the centre hole of
the chuck.
Position the woodworm screw as shown
in illustration.
Note: All 4 flat sides of the woodworm
screw should be in contact with the flat
end of the jawslides.
The woodworm screw is used to secure the wood to cut
either a recess or spigot on the open
‘face’ end.
Pre-drill a hole of size 8mm (5/16in) diameter with
19mm (3/4in) depth to mount the blank using the
woodworm screw. The wood must be seated firmly and
flat against the top surface of the mounted jaws. For
first stage rounding of bowl blanks, extra support can
be used with live centre support from the lathe
tailstock. See full manual online for more details.
DO NOT USE WOOD BLANKS LARGER THAN 250mm
DIAMETER X 100mm DEPTH (10inx4in)
DO NOT EXCEED 600RPM
TURNING ON A MORTISE OR TENON
Tenon is where the jaw contracts onto the workpiece to grip.
This is mainly for box, goblet and vase turning (End grain items
with a fair degree of overhang).
EXTREME CAUTION WITH THIS OPERATION MUST BE
EXERCISED. DO NOT EXCEED 850 RPM FOR THIS OPERATION.
Tennon Diameter (For 50mm Jaws)
Min Diameter Max Diameter
Cylinder 45mm (1 3/4in) 65mm (2 9/16in)
Square 40mm (1 9/16in) 50mm (2in)
Mortis is where the jaw expands into a recess of a workpiece to
grip. This operation is mainly for bowl and platter (Items with
parallel wood grain).
MUST NOT BE USED FOR ANY LONG WORK (OVER 100mm or
4 inches). DO NOT EXCEED 600RPM WITH THIS OPERATION.
OUT OF BALANCE STOCK MUST BE TURNED AT THE SLOWEST
SPEED POSSIBLE.
Recess Mortise Diameter (For 50mm Jaws)
Min Max
50mm (2in) 70mm (2 3/4in)
FORMING A MORTISE OR TENON
Mortise Tenon
Using a NOVA Dovetail Chisel SKU 6008 (or any
other suitable tool), cut into the wood, rest the
flat side of the chisel on the bottom surface of
the recess to form a dovetail profile of between
75~80deg with 10mm (25/64in) depth. Using a suitable chisel, turn the outer
diameter of the wood to form the tenon.
The length of the tenon should be 3mm less
than the internal height of the jaws.
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Tek
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ACCURACY
The LITE G3 Chucks are sample tested from each batch and
are made to run within the following tolerance limits on the
50mm (2in) jaws:
-
Maximum Face/Axial Runout: 0.08mm (0.0031 in)
- Maximum Radial Runout: 0.15mm (0.0060 in)
However, wood is a flexible material with varying densities
and liable to warp while turning.
Under these circumstances pursuing accuracies as above,
measured on the wood project clamped in the chuck, can be
very difficult to achieve. For most wood turning projects
there is usually little requirement to achieve such tolerances.
See trouble shooting guide for detailed guide on accuracy in
full manual online at
www.teknatool.com
WARRANTY
Your NOVA LITE G3 Chuck is covered by a 2-year Limited Warranty. Go to www.teknatool.com for a full warranty statement in full version manual LITE G3 Chuck.
The full online manual also covers trouble shooting, maintenance, list of NOVA lathe spindle thread inserts, jaw and chuck accessories.
Make sure this flat face is
coming in contact with the
tip of the jawslide
Side to cut
Mortise or
Tenon
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