TRAK ProtoTRAK KMX K3 User manual

TRAK®KMX Knee Mill,
Retrofit & Upgrade
Safety, Programming, Operating and Care Manual
Covers Current Models:
➢TRAK K3KMX with 2-Axis CNC
➢TRAK K3KMX with 3-Axis CNC
➢Retrofits
oPTKMX2
oPTKMX3
➢Upgrades
oMX2 To KMX2 Upgrade
oMX2 To KMX3 Upgrade
oMX3 To KMX3 Upgrade
oM2 To KMX2 Upgrade
oM2 To KMX3 Upgrade
oM3 To KMX3 Upgrade
oAGE2 To KMX2 Upgrade
oAGE2 To KMX3 Upgrade
oAGE3 To KMX3 Upgrade
oEDGE2 To KMX2 Upgrade
oEMX To KMX2 Upgrade
Document: P/N 29831
Version: 021120
2615 Homestead Place
Rancho Dominguez, CA 90220-5610 USA
T | 310.608.4422 |F | 310.764.2668
Service Department: 800.367.3165
e-mail: [e-mail] | [e-mail] | web: www.trakmt.com

Copyright © 2020, Southwestern Industries, Inc. All rights are reserved. No part of this publication may
be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, mechanical,
photocopying, recording or otherwise, without the prior written permission of Southwestern Industries,
Inc.
While every effort has been made to include all the information required for the purposes of this guide,
Southwestern Industries, Inc. assumes no responsibility for inaccuracies or omission and accepts no
liability for damages resulting from the use of the information contained in this guide.
All brand names and products are trademarks or registered trademarks of their respective holders.
Southwestern Industries, Inc.
2615 Homestead Place
Rancho Dominguez, CA 90220
Phone [phone] ◆Fax [phone]
Service Department
Phone [phone] ◆Fax [phone]

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
Table of Contents
1.0 Introduction 1
1.1 Models 1
1.2 Manual Organization Notes 2
2.0 Safety 3
2.1 Safety Publications 3
2.2 Danger, Warning, Caution, and Note Labels and Notices As Used In This Manual 3
2.3 Safety Precautions 6
3.0 Description 8
3.1 ProtoTRAK KMX CNC Specifications 8
3.1.1 Basic System Specifications 8
3.2 Display Pendant 10
3.2.1 Front 10
3.2.2 Pendant Back Panel 12
3.2.3 Servo Motors/Amplifiers 13
3.2.4 Ballscrews 13
3.3 TRAK Knee Mill Specifications 14
3.3.1 Manual Lubrication System –K3KMX 17
3.3.2 Auto Lube System –K3KMX Option 17
3.3.3 Electrical Cabinet (TRAK Knee Mills Only) 18
3.4 Optional Equipment 19
3.4.1 Power Draw Bar 19
3.4.2 Remote Stop Go Switch 19
3.4.3 Work Light (TRAK Knee Mills Only) 19
3.4.4 Coolant Pump (TRAK Knee Mills Only) 19
3.4.5 Spray Coolant (TRAK Knee Mills Only) 19
3.4.6 Chip Pan (TRAK Knee Mills Only) 19
3.4.7 Table Guard (TRAK Knee Mills Only) 19
3.4.8 USB Thumb Drive 19
3.4.9 Electronic Handwheels 20
3.4.10 Position Encoders 20
3.4.11 Limit Switches 20
3.4.12 Cable Breakout Box 20
3.4.13 Offline Programming 20
4.0 Basic Operation 21
4.1 ProtoTRAK KMX Basic Operation. 21
4.1.1 Switching the ProtoTRAK KMX CNC on and off 21
4.1.2 Screen saver 21
4.1.3 Switching Between two and Three-Axis Operation 21
4.1.4 Modes 21

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
4.1.5 Emergency Stop 22
4.2 Machine Operation 22
4.2.1 Spindle On/Off, Forward/Reverse 22
4.2.2 Table, Saddle, Knee and Column Gib Locks 24
4.2.3 Raising/Lowering the Knee 24
4.2.4 Spindle Brake 24
4.2.5 Draw Bar 24
4.2.6 High-Low-Neutral Level 24
4.2.7 Speed Changes 25
4.2.8 Operating the Quill 25
4.2.9 Adjusting the Quill Stop 25
4.2.10 Power Feed Engagement Lever 25
4.2.11 Fine Feed Direction Shaft 26
4.2.12 Quill Feed Selector 26
4.2.13 Feed Trip Lever 27
4.2.14 Fine Hand Quill Feed 27
4.2.15 Fine Automatic Quill Feed 27
4.3 Three-Axis Changes to the Head 27
4.4 Coolant Pump / Spray Coolant 27
5.0 Definitions, Terms & Concepts 28
5.1 ProtoTRAK KMX Axis Conventions 28
5.2 Part Geometry and Tool Path Programming 28
5.3 Planes and Vertical Planes 29
5.4 Absolute & Incremental Reference 29
5.4.1 Some Rules for Incremental Reference Positions 29
5.5 Referenced and Non-Referenced Data 30
5.6 Tool Diameter Compensation 31
5.7 Tool Diameter Compensation when Contouring in Z with Part Geometry 31
5.8 Connective Events 33
5.9 Conrad 33
5.10 Memory and Storage, Virus Protection, Microsoft Updates 33
6.0 Using the ProtoTRAK KMX as a DRO 35
6.1 Enter DRO Mode 35
6.2 DRO Functions 35
6.3 Jog 36
6.4 Return to Absolute Zero 36
6.5 Teach 37
6.5.1 Entering Teach Data 37
6.6 GO TO (TRAKing / Electronic Handwheel Option) 38
6.7 Tool # 38
6.8 Power Feed 38
7.0 Programming 40
7.1 Enter Program Mode and Assign a Program Name 40

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
7.1.1 General Programming Options 40
7.1.2 Auxiliary (AUX) Functions 41
7.2 Programming Strategy and Procedures 43
7.3 Programming Events –(2 axis mode) 44
7.3.1 Posn Drill 44
7.3.2 Mill Event 44
7.3.3 Arc Event 45
7.3.4 Pocket Event 45
7.3.5 Profile Event 45
7.3.6 Subroutine Events 46
7.3.7 Finishing Teach Events 48
7.4 Programming Events –(3-axis mode) 48
7.4.1 Posn Drill 48
7.4.2 Mill Event 49
7.4.3 Arc Event 49
7.4.4 Pocket Event 49
7.4.5 Profile Event 49
7.4.6 Subroutine Events 49
7.4.7 Finishing Teach Events 49
7.5 Prompts Used to Define the Events 49
7.6 Assumed Tool Offset, Feedrate, and Tool # 51
7.7 Incremental Reference Position 52
7.8 Finish Cuts 52
7.9 Look 52
8.0 Program Mode - The Auto Geometry Engine (A.G.E.) Programming 54
8.1 Starting the A.G.E. 54
8.2 A.G.E. Mill Prompts 55
8.3 A.G.E. Arc Prompts 56
8.4 Skipping Over Prompts 56
8.5 The OK/NOT OK Flag 57
8.6 Ending A.G.E. 57
8.7 Guessing Data 57
8.8 Calculated Data 58
8.9 Arcs and Conrads 58
8.10 Tangency 58
9.0 Changing or Correcting Programs 59
9.1 Deleting a Partially Programmed Event 59
9.2 Editing Data while Programming an Event 59
9.3 Editing Previously Programmed Events 59
9.4 Changing a Part Number (making a copy of a program) 59
9.5 Saving Changes to a Program 60
9.6 Erasing an Entire Program 60
10.0 SET UP/RUN Mode 61

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
10.1 TOOL TABLE 61
10.2 TOOL PATH 62
10.3 Setting Home 64
10.4 STEP UP & STEP DOWN –3-Axis Mills in 2-Axis Mode 64
10.5 Verify 65
10.6 Service Codes 65
11.0 Program Run Mode 66
11.1 Setting Up 66
11.2 Starting 66
11.3 Display Messages in Program Run 66
11.4 Program Run Prompts 68
11.5 Stop 68
11.6 Feedrate Override 68
11.7 TRAKing / Electronic Handwheel Option 68
11.7.1 TRAKing in Two-Axis CNC 69
11.8 Data Errors 69
11.9 Fault Messages 69
12.0 Program Memory & Storage 70
12.1 Cautions About Opening and Deleting Programs 70
12.2 Program Formats and Labeling 71
12.3 Opening a Program from the ProtoTRAK KMX Thumb Drive 71
12.3.1 Open Temp 72
12.4 Saving a Program Onto the ProtoTRAK KMX Thumb Drive 72
12.4.1 Save Temp Procedure 73
12.5 Deleting a Program on Your ProtoTRAK KMX Thumb Drive 73
12.6 Erase Current Program 73
12.7 Thumb Drive 74
12.8 Opening and Running G-Code and CAM Files 74
12.9 Networking 75
13.0 Math Help 82
13.1 Procedure 82
13.2 Math Help Types 84
14.0 Service Codes 85
TRAK Warranty Policy 88

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
1.0 Introduction
Congratulations! Whether you bought the ProtoTRAK KMX CNC as a retrofit or as the
CNC integrated into the TRAK Knee Mill or TRAK Bed Mill, you have an excellent
toolroom machine. The ProtoTRAK KMX has an easy-to-use interface and features that
make knee and bed mill work faster and more productive.
Manual Machining is always available and made easier with features like power feed,
100 inch per minute rapids, and all the best features of sophisticated DRO’s.
Two-Axis or Three-Axis Machining is available at the touch of a button for the
prototyping and moderately complex, low volume work that is typically done on knee
mills or bed mills.
The operation of the ProtoTRAK KMX CNC has been painstakingly refined to bring you
the most useful CNC technology while retaining the ease of use that has made
ProtoTRAK the top brand in controls for low volume production.
This manual will describe the operation of all basic and optional features in the
appropriate context. Where optional features are discussed, a note will explain in which
option the particular feature is found.
1.1 Models
The ProtoTRAK KMX CNC is featured in the following products:
Model
Description
Retrofits
PTKMX
Two-axis CNC retrofit to your knee mill
Knee Mill
TRAK-K3KMX
Two-axis CNC, 33” x 15.5,” 3 HP
TRAK-K3KMX-3
Three-axis CNC, 33” x 15.5,” 3 HP
Non-Current Upgrade Applications
ProtoTRAK MX 2-axis To KMX 2 or 3-axis
ProtoTRAK MX 3-axis To KMX 3-axis
ProtoTRAK M 2-axis To KMX 2 or 3-axis
ProtoTRAK M 3-axis To KMX 3-axis
TRAK AGE 2-axis To KMX 2 or 3-axis

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
TRAK AGE 3-axis To KMX 3-axis
ProtoTRAK EDGE 2-axis To KMX 2-axis
ProtoTRAK EMX 2-axis To KMX 2-axis
1.2 Manual Organization Notes
This manual covers the operation of the retrofit, TRAK Knee Mill and Upgrade products
that use the ProtoTRAK KMX CNC.
Some Sections do not apply to all users. For example, if you own a ProtoTRAK retrofit,
you should skip the sections that cover the description and operation of TRAK K Mills.
Sections that may not apply to all users contain a note to inform you of this fact.
Section 2 of this manual provides important safety information. It is highly
recommended that all operators of this product review this safety information carefully.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
2.0 Safety
The safe operation of your knee or bed mill depends on its proper use and the
precautions taken by each operator.
•Read and study this manual. Be certain every operator understands the
operation and safety requirements of this machine before its use.
•Always wear safety glasses and safety shoes.
•Always stop the spindle and check to ensure the CNC control is in the stop mode
before changing or adjusting the tool or workpiece.
•Never wear gloves, rings, watches, long sleeves, neckties, jewelry, or other
loose items when operating or around the machine.
•Use adequate point of operation safeguarding. It is the responsibility of the
employer to provide and ensure point of operation safeguarding per OSHA
1910.212 - Milling Machine.
2.1 Safety Publications
Refer to and study the following publications for assistance in enhancing the safe use of
this machine.
Safety Requirements For The Construction, Care And Use of Drilling, Milling,
and Boring Machines (ANSI B11.8-2001). Available from The American National
Standards Institute, 1430 Broadway, New York, New York 10018.
Concepts And Techniques Of Machine Safeguarding (OSHA Publication Number
3067). Available from The Publication Office - O.S.H.A., U.S. Department of Labor, 200
Constitution Avenue, NW, Washington, DC 20210.
2.2 Danger, Warning, Caution, and Note Labels and Notices
As Used In This Manual
DANGER - Immediate hazards that will result in severe personal injury or death.
Danger labels on the machine are red in color.
WARNING - Hazards or unsafe practices that could result in severe personal injury
and/or damage to the equipment. Warning labels on the machine are orange in color.
CAUTION - Hazards or unsafe practices that could result in minor personal injury or
equipment/product damage. Caution labels on the machine are yellow in color.
NOTE - Call attention to specific issues requiring special attention or understanding.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
Safety & Information Labels Used On The
TRAK Knee or Bed Mills*
It is forbidden by OSHA regulations and by law to deface, destroy or remove any of
these labels
*Retrofit customers: please see the manual that came with your machine for information about safety and information labels.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
220/440 VOLTS
Safety & Information Labels Used On The
ProtoTRAK KMX CNC
It is forbidden by OSHA regulations and by law to deface, destroy or remove any of
these labels

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
2.3 Safety Precautions
1. Do not operate this machine before the ProtoTRAK KMX CNC Safety,
Installation, Maintenance, Service and Parts List Manual, and the Safety,
Programming, Operating & Care Manual have been studied and understood.
2. Do not run this machine without knowing the function of every control key, button,
knob, or handle. Ask your supervisor or a qualified instructor for help when needed.
3. Protect your eyes. Wear approved safety glasses (with side shields) at all times.
4. Don't get caught in moving parts. Before operating this machine remove all jewelry
including watches and rings, neckties, and any loose-fitting clothing.
5. Keep your hair away from moving parts. Wear adequate safety headgear.
6. Protect your feet. Wear safety shoes with oil-resistant, anti-skid soles, and steel
toes.
7. Take off gloves before you start the machine. Gloves are easily caught in moving
parts.
8. Remove all tools (wrenches, check keys, etc.) from the machine before you start.
Loose items can become dangerous flying projectiles.
9. Never operate a milling machine after consuming alcoholic beverages, or taking
strong medication, or while using non-prescription drugs.
10.Protect your hands. Stop the machine spindle and ensure that the CNC control is in
the stop mode:
•Before changing tools
•Before changing parts
•Before you clear away the chips, oil or coolant. Always use a chip scraper or
brush
•Before you make an adjustment to the part, fixture, coolant nozzle or take
measurements
•Before you open safeguards (protective shields, etc.). Never reach for the part,
tool, or fixture around a safeguard.
11.Protect your eyes and the machine as well. Don't use a compressed air hose to
remove the chips or clean the machine (oil, coolant, etc.).
12.Stop and disconnect the machine before you change belts, pulley, gears.
13.Keep work area well lighted. Ask for additional light if needed.
14.Do not lean on the machine while it is running.
15.Prevent slippage. Keep the work area dry and clean. Remove the chips, oil, coolant
and obstacles of any kind around the machine.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
16.Avoid getting pinched in places where the table, saddle or spindle head create
"pinch points" while in motion.
17.Securely clamp and properly locate the workpiece in the vise, on the table, or in the
fixture. Use stop blocks to prevent objects from flying loose. Use proper holding
clamping attachments and position them clear of the tool path.
18.Use correct cutting parameters (speed, feed, depth, and width of cut) in order to
prevent tool breakage.
19.Use proper cutting tools for the job. Pay attention to the rotation of the spindle:
Left hand tool for counterclockwise rotation of spindle, and right hand tool for
clockwise rotation of spindle.
20.Prevent damage to the workpiece or the cutting tool. Never start the machine
(including the rotation of the spindle) if the tool is in contact with the part.
21.Check the direction (+ or -) of movement of the table when using the jog or power
feed.
22.Don't use dull or damaged cutting tools. They break easily and become airborne.
Inspect the sharpness of the edges, and the integrity of cutting tools and their
holders. Use proper length for the tool.
23.Large overhang on cutting tools when not required result in accidents and damaged
parts.
24.Prevent fires. When machining certain materials (magnesium, etc.) the chips and
dust are highly flammable. Obtain special instruction from your supervisor before
machining these materials.
25.Prevent fires. Keep flammable materials and fluids away from the machine and hot,
flying chips.
26.When working in manual mode (not CNC) make sure the computer control is
switched to DRO or OFF.
27.An optional interlocked guard is available from Southwestern Industries, Inc. for
TRAK Mills if the use of the table guard is deemed necessary by the user for his
application.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
3.0 Description
3.1 ProtoTRAK KMX CNC Specifications
The list below summarizes the features and specifications. Each feature is described in
more detail in the appropriate section of the manual.
3.1.1 Basic System Specifications
Control Hardware
•Digital Servo Amplifiers –custom designed for ProtoTRAK operation
•D.C. Servo Motors –rated at 280 in-oz. continuous torque are twice that
required
•Precision Ball Screws –in the table and saddle
•Modular Design –simplifies service and maximized uptime
•115V/60HZ/10 amps
•Feedrate Override of programmed feedrate and rapid
•Polycarbonate Sealed Membrane Keypad to lock out contamination
•9.0” Color LCD
•USB port for interface with a storage device
•Rugged Industrial PC
•Glass Scale on quill for Z-axis readout
Software
•Diameter Cutter Compensation –allows programming of the part rather
than the center of the tool path
•Circular interpolation –makes arcs and any size hole easy to do with
standard tools
•Linear Interpolation –to machine lines at any angle
•Conrad –provides automatic corner radius programming with one data
input
•Incremental and Absolute –programming can even be mixed within an
event
•Error Messages –to identify programming mistakes
•Fault Messages –for system self-diagnostics
•Parts Graphics display

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
•Look –a single button press to view graphics during programming
•Math Help –for finding points in a prompted format with graphical
representation of prompts
•Machine Tool Error Compensation and Backlash Compensation custom set
on mill after installation
•Selectable Inch/mm measurement readout
•Jog of X and Y from 1 to 100 inches per minute
•Selectable 2 or 3-axis operation
•AGE Auto Geometry Engine
Programmed Canned Cycles
•Posn/Drill –single point
•Bolt Hole –series of points evenly spaced around a circle
•Mill –straight line in any direction
•Arc –any portion of a circle
•Pocket –a rectangle, circle or irregular and all the material inside, includes
finish cut
•Profile –a perimeter of a rectangle, circle or irregular shape, includes
finish cut
•Repeat, Rotation, Mirror –of programmed events with or without offset
Options
•Remote Stop/Go (RSG) switch
•USB thumb drive for program storage and transfer. (See pg. 12, under
The USB Ports)
•Offline programming system
•DXF and Parasolid programming on Offline

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TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
3.2 Display Pendant
3.2.1 Front
Keyboard Hard Keys
GO: initiates motion in Run
STOP: halts motion during Run
LOOK: part graphics in Program and Program I/O modes
INC/ABS: switches all or one axis between incremental and absolute
INC SET: loads incremental dimensions and general data
ABS SET: loads absolute dimensions and general data
X, Y, Z: selects axis for subsequent commands
0-9, +/-, . : inputs numeric data with floating point format. Data is
automatically + unless +/- key is pressed. All input data is automatically rounded
to the system's resolution.
MODE: to change from one mode of operation to another
RESTORE: clears an entry
IN/MM: causes inch to metric or metric to inch conversion of displayed
data
ACC: turns accessory (coolant, spray, etc.) on and off
F/C: selects between fine and coarse resolution on Electronic Handwheels

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TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
Arrow Keys
Between the LCD Screen and the hard keys is a column of arrow keys.
Up key, down key: these are located at the top and bottom of the column,
respectively. They have several uses:
•feedrate override in Run and DRO modes
•page forward, page back to move through events in a program
•data forward, data back to move through the data in an event
Right seven keys: These keys are called software programmable or soft
keys. A description of the function or use of each of these keys will be shown
on the LCD screen next to each key. If, at any time, there is no description
beside a key, that key will not operate.
Emergency Stop Switch
The emergency stop (E-stop) switch kills all power to the ProtoTRAK's
servomotors and the spindle motor when pressed on a TRAK machine. The
computer and pendant remain powered.
The Liquid Crystal Display (LCD)
The display of the ProtoTRAK KMX is a 9” active-matrix color LCD.
The information displayed on the LCD screen is nearly always divided into 4
sections or areas.
The top line, or status line, shows the system's current status. This includes the
mode, inch or mm measurement and part numbers.
Beneath the status line, and filling most of the screen, is the information area.
Position data, program data and graphics are shown here. In addition message
windows will be here in the information area.
Beneath the information area is a single "conversation" line. When numeric data
is required the conversation line will appear for you to see the numbers you
enter before they are set into the system.
On the right side of the LCD are boxes describing the current function or use of
each soft keys located next to them.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
3.2.2 Pendant Back Panel
Motor
The X, Y and/or Z motor cables are plugged in as shown.
Warning:
Never plug or unplug motor cables with the power on. This will destroy the
computer!
Z Scale
Plug in the Z scale cable.
Table Guard
For plugging in the interlock switch that is part of the optional table guard. Not
available with retrofits.
The USB Ports
There are two USB ports, use only one at a time for an optional thumb drive for
program storage, transferring programs between ProtoTRAKs and computers
and for program backup. Software updates will be through the USB port.
The ports are USB2.0 compliant.
Not all thumb drives are assured to work with the KMX. The one we supply will
definitely work and can be ordered as part number USB MEM.

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TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
Test port
Used by the factory for testing only.
Grd (Ground)
We recommend that you ground the ProtoTRAK display to an earth ground such
as a cold water pipe.
A/C Inlet
To plug in the incoming 110v power. The on/off switch is located directly below
this inlet.
CBB Pwr
110 volts out to power the cable breakout box if included. Provides power for
110 volt outlet for AUX functions
AC Spdl EN
Logic cable to enable and/or turn off the spindle to certain SWI machines only
RSG
Remote Stop and Go switch
Mach ID
Machine ID key to customize parameters to each machine type
UMB1 and UMB2
Logic connections to the Cable Breakout Box
Network
Network connection to your server, computer or other ProtoTRAKs
Upgrade Aux
Interface to DPM Bed Mill upgrade auxiliary hardware
SPDL and Upgrade SW-Box
Interfaces to upgraded DPM bed mills with separate Switch Boxes
3.2.3 Servo Motors/Amplifiers
The ProtoTRAK KMX servomotor and amplifier have been combined into a single
integrated package on each axis. The motors are rated 280 in-oz. maximum
continuous torque that is sufficient for the heaviest cuts.
3.2.4 Ballscrews
Precision ballscrews are installed in the table and saddle to ensure smooth
traverse and positive control for manual and CNC machining.

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Southwestern Industries, Inc.
TRAKKMX Knee Mill, Bed Mill & ProtoTRAKKMX CNC Retrofit Safety, Programming, Operating & Care Manual
3.3 TRAK Knee Mill Specifications
This section describes the TRAK Knee Mill machine, it does not apply to ProtoTRAK KMX
retrofits.
Item
Part Number
Description
1
20819
Spindle Motor
2
29751-1
KMX Pendant
3
15616
Y-Axis Handwheel (Saddle)
4
15616
X-Axis Handwheel (Table)
5
20296
X or Y Motor
FIGURE 3.3.1 The TRAK Knee Mill Machine Overview