Cuttermasters Professional JXT User manual

CuttermastersCuttermastersCuttermasters
The CUTTERMASTER Professional
Tool Grinder, JXT
Operator’s Manual
Rev. 2020/10/19

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CUTTERMASTER Professional JXT User’s Manual
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Table of Contents
Chapter 1 The CUTTERMASTER Professional Journeyman JXT
1.1 Introduction, Forward, Contact Information .......................... 3
1.2 Disclaimer and Health Warning: Dust................................... 4
 1.3 JourneymanJXTSpecications,OverviewandTheory ....... 5
1.4 Set Up and Care for Your JXT.............................................. 7
1.5 Grinding Wheels: Basics ...................................................... 9
1.6 Grinding Wheels: Truing and Dressing............................... 10
Chapter 2 End Mill Grinding: The Basics Before you Start
 2.1 EndMillDenitions,TypesofRelief,TestTools ..................11
2.2 Organizing Your Grinding Project ....................................... 13
Chapter 3 End Mill Grinding Operations
3.0 General Check Before Use................................................. 16
3.1 Flute Outside Diameter Grinding........................................ 17
3.2 End Grinding Using 11V9C Wheel Outside Diameter ........ 18
3.3 End Grinding Using 11V9C Wheel Face - Left ................... 20
3.4 End Grinding Using 11V9C Wheel Face - Right................. 20
3.4 End Gashing....................................................................... 20
Appendix 1 End Mill Sharpening Guide, Wheel Types ................................ 22
2 Base Exploded View................................................................. 23
3 Motor Tower Diagram................................................................ 24
4 Air Bearing Exploded View........................................................ 25

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Copyright 2020
This document may not be reproduced in whole or in part without the express written permission of
Toycen Industries
Cuttermasters
2353 Ridgecrest Place
Ottawa ON K1H7V4
Canada
[phone]
[email protected]
Toycen Corporation
808 Proctor Avenue
Ogdensburg NY 13669
U.S.A
[phone]
[email protected]
Chapter 1: Introduction to the CUTTERMASTER
Professional Journeyman, JXT
Congratulations on purchasing your CUTTERMASTER Professional Tool Grinder, JXT.
The CUTTERMASTER has been the best name in bench top end mill sharpeners since 1972 and
that tradition of quality continues with the new CUTTERMASTER Professional line up. The JXT has
been designed with new features to meet the demands of today’s prototype and production shops
andprovidessuperiorexibilityandeaseofusefortoolregrindingandtoolmodications.
With the JXT you will be able to grind the diameters and ends of standard end mills in one easy
setup. With nine working axes you will also be able to sharpen roughing end mills, reamers (circum-
ferential lands), end gashes, side and face cutters, annular drills, and countersinks. You will be able
togrindreducednecks,cylindergrindsmallrounds,grindWeldonats,andcut-o󰀨carbideorhigh
speed steel tools.
This revolutionary product was designed and built in our own shop.
Forward
Contact Info
If you have any service or parts requests, or questions about this manual, please feel free to call or
write to us at

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CUTTERMASTER Professional JXT User’s Manual
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1.2 Disclaimer
The CUTTERMASTER Professional is a machine tool and as such is heavy and has large moving
parts and grinding wheels rotating at high speed. These wheels are dangerous and they emit dust,
carbide and steel fragments during the normal course of operation which are harmful if inhaled or
come into contact with skin or eyes. The manufacturer is not responsible for any injury or death
caused by this apparatus.
Upon delivery the owner of the machine assumes full responsibility for itool spindle safe operation.
Care must be taken to observe proper industrial safety precautions. Always wear suitable breathing
and eye protection when using the CUTTERMASTER Professional or any other grinding machine.
Motor: 400 Watt DC Reversing and Variable Speed
Warranty: Two Year on Motor and Control
Net weight: 31 Pounds
Dimensions 18 high 6 wide 8 depth (single)
Health Warning: Dust
Tool grinding and grinding in general produces dust that is hazardous to your health and may con-
tain heavy metals. We strongly urge that you consider a dust exhaust system. You are responsible
for taking the proper precautions and/or utilizing the proper auxiliary exhaust systems to protect your
health and that of your employees.
Toycen Industries, by this advisement waives any and all responsibility for any real or alleged claims
of health damage as the result of using their equipment(s) without heed to this warning.

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1.3 Journeyman JXT Specications
Air Bearing Stroke 10.5″(266.7mm)
Air Bearing Swing Over Table 9.8″(248.92)
Cutting Tool Capacity 2″shank,9.8″O.D.
Flute Length 10.5″
T-Slot Dimensions 0.8″(20.32mm)x0.5″(12.7mm)x0.67″(17.018mm)
Table Feed Graduations 0.001″(0.02mm)
x-Axis Table Travel 6″(152.4mm)
y-Axis Table Travel 3″(76.2mm)+(76.2mm)
z-Axis Table Travel 3” (76.2mm) from 3.3 to 6.3 inch
x-Axis Table Working Space 16.5″(419.1mm)x5.5″(139.7mm)
y-Axis Table Working Space 3” (76.2mm) from 3.3 to 6.3 inch
Wheel Mount Standard1.25″bore3,4,5.6″cupordishwheel
Motor / Tilt 1/3hp,3450rpmVariableSpeed/InniteTiltAxis
Mount
Control with Torque Compensation Toycen Whisper Drive Input 120/240 AC 60/50 Hz
Output 130-20 V DC
Net Weight 210 lbs (98 Kg)
Gross Weight 232lb (106Kg)
Machine Dimensions Excluding Handwheels 21″x20″x21″
Note: This grinder plugs in to regular household AC current and converts to DC onboard.
1.3 Journeyman JXT Specications

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1.3 Journeyman JXT Diagram
1. z-Axis Motor Lift Hand Wheel
2. Motor Lift Lever
3. Stylus
4. Indexing Collar
5. Front Collar
6. y-Axis Table Hand Wheel
7. x-Axis Table Hand Wheel
8. Air Spindle Pivot Base
9. Draw Tube
10. Quill, Spindle
2 - (behind)
9
8
7
6
54
3
1
10

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CUTTERMASTER Professional JXT User’s Manual
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1
1
2
2
3
3
4
4
A A
B
B
C
C
D
D
SHEET 1 OF 1
DRAWN
CHECKED
APPROVED
Jeff
DWG NAME
2020 SINGLE UTS Front Side
TITLE
Cuttermaster Professional DC Tower
SIZE
C
REV
3
Toycen
This document is the property of Toycen and cannot be copied or reproduced in full or in
part or communicated to third parties without specific written permission from Toycen.
UNLESS OTHERWISE SPECIFIED:
DRAWINGS ARE IN INCHES (mm).
DATE
SCALE:
LINEAR TOLERANCES ANGLES ARE:
ARE: .X = ±.03 X = ±0.5°
.XX = ±.01 .X = ±0.1°
.XXX = ±.005
SURFACE FINISH:
DO NOT SCALE DRAWING
125 THIRD ANGLE
10-32 WHeel Cap Bolts
Operation Gib Clamp thumb screws
90 Degree Spring ball
Up 22 Down 7 Motor Tilt lock
Remove this to tilt the motor into the 890 degree Position
End grinds withnthe face of the wheel
Multi Position Wheel guards in 5 and 6 inch
Gib tension set screws(3)
Motor Tilt Rotate
Tension Setting
Motor Vertical Lift
Indexing Handle
Acme 10 Lead screw with backlash
and rotational tension adjustment
Table Clamp bolt 3/8-16
Vertical Travel Hand Dial
Standard 1-1/4 Tool Grinder wheel hub
Oillite Bushed Motor tilt with
Ratchet Lever angle Locks
Notes:Vertical Slide assembly gib must be
tensioned so the it is tight but free to travel ,dove tail assemblies are lapped
and should travel freely when adjusted.
Minor deflections are normal Tighten thumb screwswhile in use for the best
grinding finishes
Whenyou’reindexingtothenextutebetweengrinds,
the tool needs to be clear of the grinding wheel. To
do so, you have the choice of rocking the air spindle
towards you, or using the Motor Vertical Lift Indexing
Handle. When using the motor lift handle, if you notice
that the motor isn’t returning consistently, try tightening
the backlash compensation screw.
z-Axis Backlash Compensator:

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CUTTERMASTER Professional Products have been designed to accommodate a variety of needs.
This system has been designed to be easy to use and maintain. As with all machine tools care must
be taken to keep all working surfaces clean and in good repair. There are 5 movements to your
CUTTERMASTER Professional DC tower
• Up and down using Top dial lead screw
• Motor Tilt
• Motor Tip
• Base pivot
 • VerticalIndexingwiththehandle(forquickliftoutofutes,Cornerrads)
The DC Motor comes with a single or twin spindle so motor/spindle assembly spindle to positive and
negative angles and rotates 360°. Cutting tool clearance angles can be tensioned so as to be quickly
adjusted as needed providing real angle result when setting angles without the use of tools.
Thereareninedi󰀨erentaxestoworkwithforunlimitedversatility.YourJXSgrindsO.D.sandendsof
standardendmillsinonesetupwithinafewminutes.YoucansharpenendmilluteI.D.s,uteO.D.s
and ends (primary and secondary), as well as roughing end mills, carbide tools, reamers, end gash-
es,smallroundsorreamers(circumferentiallands),reducedneckgrinds,Weldonats,Carbideand
HSSCuto󰀨s.
Most grinders have a single speed AC motor, designed to be inexpensive for the manufacturers to
produce. This is not conducive to a good tool grinding environment where conditions vary from tool to
tool. DC motors have more torque throughout their variable range of speeds allowing for deeper cuts
without heat damage to the tool, given that it is a dry grinding environment. The twin wheel head of
theJXSDCTowercanbeipped,reversedandspeedadjustedtosuitmostanygrindingrequire-
ment.
Ourgrindingwheelshavebeenspecicallydesignedfordrygrindingandgoodbalance.Onceyou
get your wheels dialed in, you can work from wheel to wheel without having to re-mount and dial in as
frequently.
The Toycen Radius Air Bearing has a 180° swivel base for radius grinding and takes standard 5C
collets with end mill holders available that can hold shank sizes up to 2”. The Toycen Motor Tower
provides easy and accurate positioning of the wheels to the tool being ground and allows two wheels
to be set and trued allowing for the indexing of one wheel to the next which is intended to reduce set
up times.
Journeyman JXT Overview and Theory

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1.4 Set Up and Care for Your JXT
Themachineshouldbekeptfreeofdustanddebrisandwhennotinusealightlmofoil(e.g.Oiland
WD-40 mix) should be applied to unprotected metal surfaces.
The assemblies are all cast iron and steel sliding surfaces and threads should be kept clean and
dry:aperiodiccleaningbysprayingwithWD-40andblowno󰀨withcompressedairwillkeepthelead
screws in good service. Gibs should be free of dirt and slide freely.
The Base and Motor Tower: The CUTTERMASTER Professional JX has been designed using the
proven Cuttermaster base, the system is stable and allows for the use of magnetic base indicators in
virtually any position. There is no guessing when dialing-in any feed or position move. Being made
fromamonolithiccastbaseandmotortower,theJXSabsorbsvibration.Havingsignicantmassalso
meansthatifadjustmentsare“snug”,motorrotationandtowerpivotcanbeusedwithoutsignicant
tightening. Note: Always check all wheel mounts, angular and rotational adjusts for suitable
tightness prior performing a grinding operation.
Choose a good, stable and quiet location (The CUTTERMASTER Professional is very quiet) for the
machine. We recommend our CM-10S Cabinet Base if one is needed. Level the machine using a lev-
elonthewaysandnetunewiththeadjustablefeet.
Wipeanyoilo󰀨oftheways.Theyshouldbeclean
and dry for operation. They may be wiped down from
time to time with a WD-40 and oil mix to prevent rust.
During normal operation care should be taken to
keep the carriages and leadscrews clean and free
from dust and can be done with compressed air. The
lead screws are black oxide 4140 steel with steel
drive nuts. The carriage drive nuts can be easily re-
placed should they wear over time.
A light colored back drop helps the operator locate
the grinding wheel as it approaches the tool and also
protects the ways.
CM-10S Cabinet Base

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The DC Variable Speed Motor and Control is reversible, variable speed and produces ten times
the torque than the standard 1/3HP AC motor . This helps eliminate tool burning by facilitating heavy.
Cuts at greatly reduced RPM, cutting grinding times in half on some tools. Read the appendix KB
Control Board Manual before operating. The internal circuit board trim pots have been set according
to our preferences.
The CM-02A Air Spindle:
Note: Always have air supplied to the air spindle when being moved or in use. Check the air spindle
components and wipe them completely free from dust and oil using acetone or a solvent that does not
leave a residue (See Cleaning Section).
Hook up shop air to the air spindle. There must be clean dry air present (must have an air dryer on
theline)itcanbeusedwithoutadditionalltrationandmoisturecontrol.
Theairspindleusesonetotwocfmat80to100psi.Aregulatorltermayhaveshippedwiththema-
chine(CM-01P,CM-02Rdoesnotmountalterbutitcanbemountednearthemachineifrequired).
ThelterassemblyisnotattachedtotheCM-02Rairspindlebecausethereareadjustmentdevices
that need to be accessed and the spindle must be free to more.
The height of the stylus that the end mill rides on should be kept to the same height as the center line
of the air bearing spindle. Using a 3/8 5C collet mount the 3/8 Half Pin in the air bearing to set the sty-
lus height. The face points down, parallel with the x table top face. Raise the stylus to touch the face
ofthecenternderandlockthenutatthestylusbase.