Vicmarc Machinery VM90 User manual

Vicmarc Uni-Chuck
Vicmarc Machinery Pty Ltd
Manufacturers of Quality
Woodturning Lathes and Accessories
4 Jaw Self - Centering Chuck
Owner’s Manual
for the VM90, VM100,
VM120, VM140 &
VM150

Vicmarc Uni-Chuck
Vicmarc Machinery Pty Ltd
52 Grice Street Clontarf QLD 4019 Australia
Phone [phone] Fax [phone]
Int Ph 61-7 3284 3103 Int Fax [phone]
Email [email protected] Web www.vicmarc.com
Manufacturers of Quality
Woodturning Lathes,
Chucks and Accessories
Vicmarc Machinery, a family owned and operated business, has
been manufacturing wood turning lathes and accessories for the
hobbyist and professional since 1984. The company is dedicated
to providing machinery of the highest quality and precision
engineering which has secured sales worldwide.
Through constant improvement, Vicmarc retains its place as a
leader in the field. Vicmarc lathes and chucks are known and
respected internationally for their robust design and ease of
use. Only the best materials and latest high precision, computer
controlled machinery are used in the manufacture of
Vicmarc products.
The company continues to respond to the demands of the market,
updating and improving at all stages of manufacture.
P2

Vicmarc Uni-Chuck
Description
The Vicmarc 4 Jaw Self Centering Chuck is designed and manufactured in
Australia by Vicmarc Machinery, utilising the precision, simplicity and reliability
of the engineering chuck.
This chuck grips internally and externally, will hold round and square work, has
a hollow centre so that through boring can be done from either end and can
even be run clockwise or anticlockwise.
Manufactured from K1045 (medium tensile steel - 45 tonne) the chucks have a
higher durability ensuring a longer life and a very high quality finish which is less
susceptible to rust.
Vicmarc chucks are guaranteed for 12 months and a large variety of
accessories are available to suit them.
IMPORTANT SAFETY INFORMATION
Vicmarc wood turning chucks are manufactured from the highest quality
materials to ensure a long working life. To ensure that your chuck is kept at its
optimum performance please take note of the following points:
• All Vicmarc chucks have a stop pin below the number No. 4 jaw
runner except the VM150 which has the stop pin below the No. 2
Jaw. Its purpose is to prevent the jaws from expanding beyond the
safe working limit. The chuck must NOT be opened beyond its full
extent or damage could be caused to the stop pin. A damaged Stop
Pin could in turn damage the Jaw Runners. We recommend the use of
a larger dovetail jaw set when working with larger scaled pieces.
• The “Screw Point” supplied with each Vicmarc Chuck should be
mounted as described in the Owners Manual (page 6) . Failure to
mount the screw correctly could cause damage to the screw point.
Drilled holes for the screw point should be as follows:
7mm - 7.5mm for Softwoods
8mm - 8.5mm for Hardwoods
Where possible, holes should be drilled on a pillar drill.
List of Contents
Safety Precautions ................................................................Page 4
Maintenance .........................................................................Page 5
Beginners Tips......................................................................Page 5
Mounting on the Lathe, Clamp Mode, Expansion Mode...... Page 6
Operation - VM90 & VM140................................................Page 7
Operation - VM100 & VM120..............................................Page 8
Operation - VM150 .............................................................. Page 9
Maintenance - VM150 .......................................................... Pages 11-13
Jaw Styles and Accessories ...................................................Pages 14-17
Exploded Diagram Chuck Jaws ............................................Pages 18-19
The Vicmarc Guarantee ....................................................... Page 20
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Vicmarc Uni-Chuck
P4
SAFETY PRECAUTIONS
1. READ AND UNDERSTAND INSTRUCTION MANUAL
BEFORE OPERATING WOOD LATHE.
2. Always wear eye protection.
3. Do not wear gloves, neckties, jewellery or loose clothing.
4. Do not operate without guards in place.
5. Rough out workpiece before installing on face plate.
6. Do not mount a split workpiece or one containing a knot.
7. Tighten all locks before operating.
8. Rotate workpiece by hand before applying power.
9. Use slowest speed when starting a new workpiece and do not exceed
permitted speed.
10. Disconnect machine from power source before making repairs or
adjustments.
11. Do not operate while under the influence of drugs alcohol or
medication.
12. Remove the tool rest before sanding or polishing.
(

Vicmarc Uni-Chuck
P5
GENERAL MAINTENANCE
Before the chuck is mounted on the lathe, make sure that all the threads are thoroughly
clean and free of debris. This will ensure the chuck will run true.
The chuck is engineered to very close tolerances and may initially be sti to operate. With
use movement will become easier. To maintain easy jaw action, regularly spray oil onto the
scroll and work lever through full range of movement. Inspect chuck regularly for build up
of dust in the scroll and jaws. Clean as required.
BEGINNERS TIPS
PREPARE THE WORK PIECE THE FOLLOWING WAY
200-250mm dia. 40-50mm thick; RPM 800-1000
1. Drill 25mm deep and 7-8mm dia. hole in the centre of workpiece
(Avoid drilling into the end grain, this could result in less grip)
2. Make sure the workpiece is as round as possible.
3. Choose appropriate speed before you start the lathe.
4. Screw the workpiece hard against the jaws.
5. Heavy or unbalanced workpieces should not be fastened directly to the screw
chuck. Use the face plate rings instead.

Vicmarc Uni-Chuck
P6
Mounting on the Lathe
The Vicmarc Uni-Chuck fits a
wide range of lathe spindle sizes.
This is done by changing the
threaded insert. Your dealer will
advise on the insert required
for your lathe. Check that the
insert is firmly screwed into the
Chuck body and then screw the
assembled chuck into the lathe
spindle. Insert must be firmly
seated against the lathe spindle
shoulder.
The Screw Point
The Screw Chuck is used
to mount small cross
grained pieces
Clamp Screw Point this way
for VM90 & VM 100
y
p
in
dl
e
Clamp Screw Point this way
for VM120, VM140 & VM150
Lathe
Spindle
Insert Chuck
Clamp Mode
With this application the workpiece is held
by the jaws. To achieve a good hold, press
the bowl end hard against the jaws. Fasten
the workpiece to the screw or onto the face
plate. When pre-turning bowls from green
timber it is possible to do this between
centres or with a pivot chuck. Turn a 5 to
10mm deep dovetail recess first. The sizes
of all the jaw types available are shown in the
tables on pages 18 and 19.
For this application a recess is turned into
the workpiece. The depth of the recess
depends on the actual size of the workpiece
as well as the type of timber used. The
minimum depth should be 5mm to 10mm
Expansion Mode

Vicmarc Uni-Chuck
P7
OPERATION
VM90 and VM140
The VM90 and VM140 chucks are for those who prefer to operate the chuck using the
quick- acting Tommy Bars (Levers), which saves time when mounting and dismounting
bowls.
The VM90’s compact size makes it ideal for use on 300mm (12”) capacity lathes or
smaller, whilst the VM140 will hold most work up to 500mm (20”) in diameter with
standard jaws.
The basic chuck includes: chuck body, two tommy bars, screw point, allen key, and the
owners manual.

Vicmarc Uni-Chuck
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OPERATION
VM100 and VM120
The VM100 and VM120 t-bar allen key operated chucks provide one-hand tightening
along with tremendous gripping power provided by the 6 to 1 ratio of the scroll. The
totally enclosed back assures a consistent smooth action by preventing dust and debris
from getting into the scroll of the chuck.
Keyed chucks cannot be beaten when it come to holding power.
The VM100’s compact size makes it ideal for use on 300mm (12”) capacity lathes or
smaller, whilst the VM120 will hold most work up to 500mm (20”) in diameter with
standard jaws.
Basic chuck includes: chuck body, t-bar allen key, screw point allen key and the owners
manual.
3
4
56
7
8910
11
12
13 14 15
16
PARTS LIST
ITEM QTY VM100 - PART NUMBER VM100 - DESCRIPTION VM120 - PART NUMBER VM120 - DESCRIPTION
11 P00027 8mm T-Bar P00028 10mm T-Bar
21P00024 3mm T-Bar P00025 4mm T-Bar
3 1 V00093 7.9mm Tommy Bar V00091 9.5mm Tommy Bar
4 1 V00991 Wood Screw V00991 Wood Screw
51-Insert VM90-100 -Insert VM120-150
6 2 P00719 M4 x 8 Screw, Socket Flat Head P00719 M4 x 8 Screw, Socket Flat Head
71 V00178 VM100 Backing Plate V00178 VM120 Backing Plate
81P00249 50mm External Circlip P00251 60mm External Circlip
9 2 P00591 M5 Dowel Pin P00591 M5 Dowel Pin
10 1V01000 VM100 Scroll V01001 VM120 Scroll
11 1 P00972 Chuck Body, M40x2 P00997 Chuck Body, M45x2
12 2 V00900 VM100 Pinion V00901 VM120 Pinion
13 1 P00598 Roll Pin Dia 3 x 10mm P00599 Roll Pin Dia 4 x 12mm
14 1 V00637 VM100 Backing Jaws V00670 VM120 Backing Jaws
15 4 V00657 VM90-100 Standard Jaws V00695 VM120-150 Standard Jaws
16 8 P00720 M5 x 12 Screw, Socket Flat Head P00725 M6 x 12 Screw, Socket Flat Head
1
2
3

Vicmarc Uni-Chuck
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OPERATION
VM150
The VM150 Chuck is a new and innovative
patented design with many exceptional
features for the professional turner or
the serious hobbyist. Jaws and inserts are
compatible with the VM120 but the backing
jaws have been made larger and stronger to
withstand very heavy use.
The VM150 is ideal for use on 400mm (16”)
capacity lathes or larger.
The basic chuck includes: chuck body,
one tommy bar, screw point, 2 x allen keys,
and the owners manual.
VM150 Features
Quick Action
Fine Adjustment
(once locked)
Locking Pinion
for Fine Adjustment
Q
The VM150 is a revolution in chuck design from Vicmarc. To save you time and energy
this chuck has two actions - one to rapidly open and close the chuck as though it was lever
operated (fully open in 3 revolutions), the other to tighten using the ‘T’ Key as you would
in a standard key operated scroll chuck. To switch from lever operated to key operated,
line up the dots as shown above and rotate the locking pinion using the 10mm T-bar
(supplied) Turn clockwise to engage and anti-clockwise to disengage.

Vicmarc Uni-Chuck
PARTS LIST
ITEM QTY PART NUMBER DESCRIPTION
18 V00997 M6 x 12 Screw, Socket Flat Head 24V00695 Jawset, VM120/140 Standard 31V00697 Backing Jawset 41 P00737 M3 x 5 Socket Head Cap Screw 51 Chuck Body, VM150 61V01001 Scroll 71 M5 x 12 Ball Catch 8 1 V00886 Locking Pin 91 Locking Pinion
PARTS LIST
ITEM QTY PART NUMBER DESCRIPTION
10 3 P00738 M5 x 5 socket set screw 11 3 P00590 Pin, Dowel 4x25 12 2 V00901 Pinion 13 1 Chuck Housing, VM150 14 1 P00250 55mm external circlip 15 1 P00028 10mm T-Bar 16 1P00025 4mm T-Bar 17 1 V00091 9.5mm Tommy Bar 18 1V00991 Chuck Wood Screw
18
5
6
12
13
14
15
16
17
7
9
8
3
2
1
4
Compatiable with VM120/140 Jaws
10 11
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OPERATION