Teknatool PRO-TEK G3 - Woodworm Screw Operations; Using the Woodworm Screw; Speed Recommendations; Forming Mortise or Tenon

WOODWORM SCREW
The woodworm screw provides a convenient method for holding a bowl blank to
cut a recess to mount on the PRO-TEK G3 50mm (2”) jaws. Jaws must be
mounted on the chuck before the woodworm screw – See diagram below
Open the jaw slide 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 jaw slides.
Make sure this flat surface is in contact with the tip of the jaw slide
The wood worm screw is used to secure
the wood to cut either a mortise or tenon
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.
Side to cut mortise or tenon on
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.
Speed recommended is between 600-700 RPM for 6” diameter
and larger, or heavy pieces.
DO NOT EXCEED 700RPM for both Tenon and Mortise Operation
G3
Teknatool International Ltd.
USA (727) 954-3433 Int’l (+64) 9 477 5600
Global Support For all inquiries, repairs, and support Email:
service@teknatool.com
or contact your local dealer.
Find a dealer closest to you by visiting www.teknatool.com
www.teknatool.com
To register your warranty
or full manual visit
www.teknatool.com
5432 Any Street West, Townsville, State 54321
Tel 555.543.5432 Fax 555.543.5431
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technology
5432 Any Street West, Townsville, State 54321
Tel 555.543.5432 Fax 555.543.5431
www.yourwebsitehere.com
technology
FORMING A MORTISE OR TENON
Using a Nova Dovetail Chisel #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.
►
CHUCK GRIPPING DIRECTION FOR TENON ◄
A 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).
Tenon Diameter for 50mm Jaw
Min Diameter
Max Diamter
Cylinder
45mm (1 ¾”)
65mm (2 9/16”)
Square
40mm (1 9/16”)
50mm (2”)
◄ CHUCK GRIPPING DIRECTION MORTISE ►
A mortise 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).
IT IS NOT RECOMMENDED THAT A MORTISE BE USED FOR ANY LONG
WORK (OVER 100mm or 4 inches). DO NOT EXCEED 700RPM WITH THIS
OPERATION. OUT OF BALANCE STOCK MUST BE TURNED AT THE
SLOWEST SPEED POSSIBLE.
Diameter of recess for 50mm jaw mortise
MIN
MAX
50mm (2”)
70mm (2 ¾”)
REF
#
QTY PART # DESCRIPTION
REF
#
QTY PART # DESCRIPTION
1
1
48206 /
48239 /
1359011
CHUCK BODY:
Insert Type / 1”x8tpi
/ M33 ASR
9
1
NS1000
FIBER WASHER
2
1
1359010
CHUCK KEY
10
1
G0606
GRUB SCREW
3
1
23109 /
23113
SCROLL RING:
Insert Type, 1”x8tpi /
M33 ASR
11
8
CM5010182
NOVA STAR
SCREW
4
1
1359051 /
1359055
JAWSLIDE #1:
Insert type, 1”x8tpi /
M33 ASR
12
1
10006
WOODWORM
SCREW
5
1
1359052
JAWSLIDE #2
13
1
13049
STAR HEAD SCREW
T-HANDLE
6
1
1359053
JAWSLIDE #3
14
1
AK3
ALLEN KEY 3MM
7
1
1359054
JAWSLIDE #4
15
1
10045
PRO-TEK 50MM (2”)
JAWS
8
1
EC48 /
EC50
CIRCLIP:
Insert type, 1”x8tpi /
M33 ASR
G3