CNC Jr. USER`S MANUAL J & S Products 13 Cornwallis Irvine
Contents
1. serviced regularly control ler will be damaged The coola control t availabl Select on he coolant flow due to a or from a 5 7 G CO software to insert a ALT F the fil If R C BOBCAD GFILE TAP may choose to copy it into your program code for menu then press With the G COD the G code fil UNF ILE the fil ES File Interpreter Option m LX CEJ EO X and the G CODE Typ COD C F B file must have a BOBCAD TEST TAP HEL PMENU TX Sy Besides th featur nam fil be in ES file interpreter optio from other CAD CAM programs can be read and used by is large then it is recomme command in your program If the G code program is shor iser nt kit does not contain a sprav head or attachments to large varietv of spray heads from your local machine tool distributor ny of the mail order suppliers n G Codes produced the MASTER nded Gl RUNF ILI t then yo ress the a file G p rted e will 8 The SCNCMASTER several The 2 control fu from left to right PORT ON OFF Exits jog mode if s of a regular PAUSE button 1 the jog mode is active TAP extension to be used Il For further details see MASTER help file computer 3 S F E nctions placed above the keyboard X the C2. see the SET HOME command T 6 3 SSETUP PROG The setup program defines the default startup parameters necessary to run your machine The default values can be overridden by another command line Depending on your system commands like BACKLASH REVERSE RAPID SCALE INCHES etc may be entered and modified in the setup file Access the setup program or any other program with either one of the following two methods 1 Press F3 type SETUP and then press the ENTER key 2 Press F4 type the coded number listed for the setup program then press the ENTER key Press the F2 key to save the setup program after making any changes With the CNCMASTER computer use the joykey controls to set the proper direction of the motors Notice that the X X Y Y refer to the cutter tool direction and not to the direction of the table which happens to be opposite To change the jogging speed use the FEFD dial Hold the joykey towards the X position and the table should move to the left assuming that you are facing the mill Hold the joykey towards the Y position and the table should move backwards Hold the joykey towards the Z position and the quill should move up If there are directional errors then exit the jog mode by pressing the PORT ON OFF button and then move the cursor to the REVERSE command line in the SETUP program pre
3. be idden with the I and J in the ARC The ARC command AA allows you to enter a circular path which will move from the STARI RADIUS You may select CW or CCW for cloc counterclockwise directional is at the intersection of X and Y coordina relative radius 0 degrees is towards kwise or ANGLE to the END ANGLE at a relative move For the START END ANGLE a brief review of the coordinate system follows n operator standing in front of the milling tabl in relatio Zero X 0 Y 0 te vectors Given a the operators right side X relative radius 90 degrees is away from the operator Y relative radius X relative relative radius EX ARC RAD SARCTANGENT The ARC TANG 180 degrees is towards t radius 270 degrees is i IUS 5 STARTANGLE 170 ENDANGLE 285 T continues from a straight move angle You may sel move The arc will extend to RADIUS EX ARCTANG ENT RADIUS 0 768 he operators left side n front of the operator Y CCW ENT allows you to enter a circular move that The straight move could be at any lect a clockwise or counterclockwise directional the selected ANGLI ENDANGLE 45 CW E with a relative corresponding name and will repeat it as indic ated by the repeat factor You may have any number of call commands in a program but the subrou main
4. dial The FEED dial M i i an enable the MICRO JOG function dial for micro stepping The ICRO JOG dial has a micrometer function Turning CW or CCW will ncrement or decrement the position of the selected axis The ncrements or decrements are in 0 00025 steps Select the axis with the joykeys You may enter X Y Z or W to zero the corresponding counter The F7 key will zero all counters PROGRAM HOME You can set the program home by jogging the axis and zero their respective counter at any convenient position of the machine working area To return to the PROGRAM HOME press ALT H keys MACHINE HOME To set the machine home press Alt M keys The X Y and Z axis will travel and search for the home switches where the machine home will be reset From here jog your way to the new program home Before you exit the jog mode press S to save the offset distance from the machine home to the program home See the SET HOME command SHOW MACHINE HOME Press ALT S keys to display the distance from the machine home to the program home Save and enter these values in the SI HOME command ti H 6 9 The Option Menu SHELP OPTIONS Use PgDn key to find the following commands SPINDLE COOLANT CHANGE PORTS OVERRIDE SPINDLE This co
5. in a good quality computer typ line voltage does not exceed 122 Volts AC minimum the controller ten this center knob to lock in the micro TE Refer These and le motor has several options available depending upon whether the variable speed spindle control was purchased as an option ller and the CNCMASTER Plug surg lectrical surges Also If This is line conditioner These options are listed as follows for manual spindle control and variable speed spindle control MANUAL SPINDLE CONTROL Option 1 240 Volt three phase 60 cycle 20 amp service Option 2 240 Volt single phase 60 cycle 20 amp service with phase converter Option 3 120 Volt single phase 60 cycle 20 amp service circuits protected with separate circuit breakers in the main panel board be used to protect the computer and the controller from voltage drops or spikes when the 2 HP spindle motor is started and stopped Damage to your computer and controller may occur if the electrical power supply is not adequate Use a licensed electrician to check or modify your electrical wiring if you are not sure about its capabilities Variable Speed Spindle Drive Additional Information The variable speed drive option provides a variable freguency and variable voltage output to the spindle motor This drive allows the motor to run from 0 RPM to the maximum rated RPM of the motor with ver
6. AD CAM user s manual lock key can be plug between the CNC Jr controller and the printer cable connection 6 0 MASTER Software Features 6 1 SHELP MENU You can reach the Help Menu with the F1 key at any time while From the editing screen move the cursor to select a particular command line then press the help key F1 to open a menu and select L for an explanation of the command editing a program selected by the cursor The escape key Esc will close the help window You can find other commands available in the Insert Menu with the Ins key As before press the F1 key 6 2 STHE SCREEN select a particular command and This is your main working area Here you can create and view your file of motion commands text are the prompt lines The top and bottom lines highlighted The prompt lines will display the options available at any particular level that you are in The thr lines befor the bottom prompt line are the status lines which show the status of the different options available You may use the arrow keys and other keys as shown on the bottom prompt line You can change from micro to rapid Jog speeds by selecting the FEED dial During the JOG mode you may also enter the INS key to automatically insert and save the new position see the Teach Mode for more information or you can enter the S key to save the program home position
7. G29 Return from reference point G70 Input in inches G71 Input in millimeters G80 Cancel Peck Drilling Cycle G83 Peck Drilling Cycle G90 Absolute move Modal G91 Relative move Modal G92 Shift X Y and Z position G98 Return to initial point in canned cycle G99 Return to R point in canned cycle M00 Stop M02 End routine SMO3 Spindle on SM04 Spindle off M08 Coolant on M09 Coolant off SM20 Oil on SM21 Oil off M30 End program For Peck drilling cycle use the following format G83 X Y VA R Q P F X Y specifies the hole position by a value Z specifies the distance from the hole with a of the hole bot R specifies the the R point re will fast retur Q specifies eac P optional sp the hole F optional sp Peck drilling e G91 G99 G83 X 5 X 7 G98 X 2Y1 G80 n incremental and nega absolute distance fro turn point n to the R point h cut in value with a ecifies dwell time in tive valu tom with an absolute value Switch Y to W with angular computed displacement n incremental or absolute point R to the bottom of or the position m the negativ initial After each cut in value the drill incremental val level value to cifies f d speed xample ue milliseconds at button of fis 85 Ra 005 PS00 F5 X DY 8 KTV 3YL The mirror command allows the X or Y axis to be m
8. MASTER has Starting Turns the port on or off Pauses a running program A second button press will abort the paused program must be ON axis he EF T The GO button running a program that was paused The X Y joykeys and the Z in the selected axis The MICRO JOG dial CCW will increment or decrement t he increments ED dial axis with the 1 Runs the open W joy The jog speed is con or decremen joykeys program 2 keys The W axis is the rotary table Will continue Will activate jogging The PORT trolled by the F Has a micrometer function he position of t ts ED dial T urning CW or he selected are in 0 00025 must point to the MICRO JOG function steps Select the run the SPINDLE SPEED OVERRIDE function will be active Turning CW or CCW will increment or decrement the spindle speed The percen Set the SPINDLE SP F a program The KILL button Jr controller and button a second ti with the editor 5 9 XYZCAD CAM Pressing the tage of change is displayed on the screen ED OVERRIDE to zero position before running KILL button will reset the CNC lock the running program Press the KILL For installation and usage foll instructions Note If needed a software me to unlock the MASTER and continue working low the XYXC
9. TER Software Installation es with the software fac o the following Insert drive of your computer or B to change t o either the A or B drive then press the NT ER key The installation program a subdirectory on installation is c software 5 0 CNC Jr Opti Sin Bi Variable Sp Initial se controller 240 volt connector from th output port Start CNCMASTI button or the release t computer controlled FORWARD SPEED 150 select options th ALT 0 R or S to set Off res CO turn The spindle shoul command or by sel single phase ER t he PORT ON OFF button by either using the SPINDLE again then the C drive for the MASTI omple ons indle Speed Drive 20 amp circuit e variable controller to the CNC Jr urn controller on switch on the controller or the F5 the PORT ON The spindle speed now command EX or using the menu Press 0 to turn spindle ON ither one of the following Forward Reverse or Spindle speed et 0 en press d be turned off using either the tory installed the MASTER diskette into Use the DOS command A Type INSTALL and ER software ted type the word MASTER to start the SPINDLE ALT 0 Press letters SPINDLE For will create After tup of the variable speed drive requires turning off hen plugging the variable speed drive unit i
10. US CNC Jr ER S MANUAL J amp S Products 13 Cornwallis Irvine California 92720 OT OI OI O O OV OV OV OV OV OV 0 OV 0 Setting up Your CNC Jr 0 Connecting Electrical Power 0 Setup the CNCMASTER or host computer to the CNC Jr 0 MASTER Software Installation 0 CNC Jr Options Variable Speed Drive Engraving Attachment Rotary Table Quick Tool Changing System Lubrication System Coolant CODES File Interpreter Option CNCMASTER XYZCAD CAM G OI OI OI Oi On Or NOP W NR H 0 O MASTER Software Features Help Menu The Screen ne Setup Program My First Program Teach Mode The File Menu he Edit Menu he Run Menu The Option Menu 0 0 J O 01 W D H O 0 MASTER Command List Bolt the CNC Mill on either the optional machine stand or a sturdy work bench with four 3 8 or 1 2 diameter bolts It is recommended that the work bench height be about 30 inches high depending upon the operators preference 2 0 Setting up Your CNC Jr Your CNC Jr has been completely tested and run at the factory before shipment to ensure all features are functional Damage or components may go out of adjustment during shipment so it is recommended that the following components be checked and adjusted as necessary prior to connecting the CNC Jr to a power source After bolting the Mill to the machine stand or bench assembly the Y AXIS a
11. and will only be active if the axes are at the machine home position After this The SET HOME nd is deactivated Press the ALT S keys to display the nt machine home position Press the ALT M to reset and to the machine home position comma curre move Ex S ET HOME X 5 98625 Y 3 120000 Z 2 98250 notice that the values are always negative Also this command is only available if the machine has switches installed SSPIN DLE This command allows you to control the spindle on off direction SPINDLE OFF SPINDLE ON FORWARD RPM 60 PITCH 18 SPINDLE REVERSE SSTOP This command stops the program at a particular point where you will hear a warning sound for a short time to alert the operator about the next step To continue with the program you may press Enter or Ctrl F9 or Esc to terminate the program This command can be used for a tool change STOOL This commands is designed to work with the Quick Tool Change System TO1 to T10 are variables for tool height offsets stored in the SETUP file EX COOL TO1 100 TO5 567 TOS 1 2 25 ete To incorporate a tool change on vour program follow this guidelines Move the quill up on the Z axis high enough to clear your work and change the new tool Stop your program at this point and advice the operator about the tool change Following the tool change enter t
12. ding a program by entering the coded number followed by Enter or you may leave the directory with the Esc key follow by the Enter key You can change directories with the F5 function but make sure that the directories have been already created by DOS PRINT Use the P key at this time to print the current file To print from the CNCMASTER connect the parallel port to the printer EXIT Use ALT X key to leave CNC JR If there have been any changes since the last time you saved the file CNC JR will give you a warning that all the additional changes will be lost 6 7 The Edit Menu SHELP EDIT Use the PgDn key to find the following commands INSERT DELETE UNDELETE CHANGE TEXT ZERO COUNTERS INSERT The Ins key opens a menu from which you can select the different commands available to build a file The insertion is done at the cursor current position After you have made your selection To repeat the last command you entered press th Enter key after the INS key DELETE UNDELETE Pressing the Del key erases the command at the present cursor position To UNDELETE the last deleted line press Alt E to get into the Edit menu and enter U to undelete You can move the cursor to a different line and insert the deleted lin EDIT TEXT Press the Tab key to get int
13. elt call J amp S Products for further assistance at The center the micro d down feed f under CNC c down feed Next check your CNC Jr desired R on the spee speed spind 2 7 positio to section option 3 0 Connec Three compo components are the 2 HP spindle drive motor PM by moving attached to mil tion the bel knob on the drill own feed The Z eature to control ontrol tigh the and adjust the bel has the bel d char le drive op n as indicated on 5 1 for further de ting Electrical Power nents of your CNC Jr the CNCMAS the control TER or host computer computer require 120 Volts single phase 60 cycle power check that to maintain Electrical power for the spindi the case then you must use a 600 watts Z axis d rat 714 552 1158 The quill or Z axis should easily move up or down manually by loosening the center knob and using the drill press type handles press handle when tightened locks in axis stepper motor drives this micro When running 1 require elect t tension on the spindle drive manual spindle control you can select the ts to proper position as indicated If you have the variable lts should come preset to belt the speed chart or 1040 RPM tails on the variable speed drive rical power The control suppresser to protect this equipment from el voltage at 120 or less er and computer
14. f FILE n T AS RT A FIL TORY Zp E H VUn lt lt D Z H E Bad tA DPOHNNA GH H D N m XIT GET FILE Use the F3 functi allows you to retri with CNC JR softwa any changes on your SAVE Use the F2 functi allows you to store file name is NONAME SAVE AS Use the a key at name INSERT A FILE Use the M key at ur best judgment in order to determine which hining are best to save You can leave the nd Ins from the insert menu any command like C which will be difficult or impossible to jog keys After you hav ntered the command for immediate execution Any time during your nsert rapid or feed commands as required e last move command you return to home or zero he word END as the last line u ind the following commands on kev from the main menu This command eve or open anv file that has been created re Before loading vou will be asked to save present file on kev from the main menu The SAVE command vour current file in the directorv If the then vou will be asked for a new name this time to save a file under a different this time to insert a file at the cursor position The fil to be inserted must have TAP or CNC as a DIRECTORY Use the F4 function key from the main menu This command shows all files in the present directory You will have the option of loa
15. he y once F a you may feed sp Insert to run the program The quill will move 1 EST program and add a drilled hole te a subprogram nd back RL for a Routine label Now e li L as RA ns EN to END ne an CALL d I DRII d and ne to the ns MASTER Save nd select run your ES tware programs included in your software how to run a G code program located in the BOI nd Sample2 supplied with your so that you have seen how easy it is to program wi you should load and study the Sample3 uses t and T ftware TI again T he ARC c 1S lt a gt key to understand how a Call routi ES st hey should be other sample omma BCA software thi CO ne th nd D your machine The s teps to follow are quite simple First you must det clamped on the mill rmine the home or zero position of the part ing table One method will be to use an edge finder and the Jog using the Jog mode key to automaticall mode to zero the X Y and Z counters Now start machining your part and use the Ins y insert and save the current position you are in You must use yo positions while mac jog mode any time a arc polar move et duplicate with the press the F10 key machining you may i Insure that with th position and add t 6 6 The File Men an LP FILE PgDn key to
16. he tool offset and move the 7 axis down the same distance you previously used to clear the work area Ex other code MOVE Z 2 5 R STOP CHANGE TOOL T03 TOOL T03 MOVE Z 2 5 continue code Use the TOO to cancel the tool offset and bring the quill back to the original position EX TOOL TOO STOOL RIGHT The Tool Right command is not implemented Please check with J amp S PRODUCTS for future release STOOL LEFT The tool Left command is not implemented Please check with J amp S
17. irrored Basically what this command does is reverse the motor direction of the selected axis To cancel enter MIRROR without any values Ex MIRROR X Y MIRROR to cancel SMOVI Here you may enter your X V Z or W coordinates The distances may be incremental relative to the last position or absolute relative to zero position in accordance with the last declared INCREMENTAL or ABSOLUTE commands You may enter one or more axis on the same command All axis will interpolate The speed will be according to the last selected RAPID or FEED command Gl SA NOTES NO The backslash indicates a comment line Up to 70 characters may be used to add comments or notes to the program CNC JR will ignore all text following the backslash during a program run SPOLAR Here you may enter a relative distance in order to move from the current position and the direction of move in degrees SPORT This command will turn the PORT connection between the host computer and the CNC Jr controller ON or OFF Ex PORT ON PORT OFF Through software control this provides the same function as manually pressing the F5 to toggle the PORT off or on SRAPID The RAPID command will activate the default RAPID speeds selected in the Setup file The RAPID speeds will remain in effect until overwritten by a FEED command The short form is the R letter that can be added as the last parameter on a mo
18. mmand allows you to control the spindle on off direction and spindle speed After the key word SPINDLE you can enter one or more of the following key words ON OFF FORWARD REVERSE RPM and PITCH Make sure to separate words with a space character and that the RPM word is followed by a number 0 to 2500 corresponding to the R P M selected The PITCH must be followed by the pitch in inches or millimeters and should only be used during a tapping operation The PITCH selected will automatically adjust the feed rate for the corresponding RPM selected 300 RPM is the maximum spindle speed allowed for tapping Also see MAXRPM command Ex SPINDLE ON FORWARD RPM 1500 SPINDLE OFF SPINDLE ON FORWARD RPM 60 PITCH 18 SPINDLE REVERSE 7 0 MASTER Command List The following is a description of all CNC JR Commands listed in alphabetical SABSOLUTE The ABSOLUTE SINCREMENTAL order command AB sets the absolute mode on All moves after this command will be relative to the program home position It can be overridden with the INCREMENTAL command The INCREMEN TAL command IN the incremental mode cancels the absolute mode and set relative to the last position It can be overr ABSOLUTE command IJ ABSOLUTE This command overrides the defaulted relativ G02 G03 commands SARC RADIUS All moves after this command will
19. nto a Plug the 5 pin female variable press and release the KIIL Press and key on the host can be ON to F W T OFF ecting Spindle Off in the options menu before turning the contr 5 2 Engraving At WARNING DO NOT P DRIVER WILL BE Plug the power co 120 Volts AC outl Switch Ls offe PI into the variable T have a variable spindle attachment on your must exchange cor the variable rout DAMAGE oller off and exiting MASTER tachment with variable speed LUG ANY ROUTER LARGER THAN A HP OR rd of the variable router controller et Make sure that the ro ug in the 5 pin female ro speed port of the CNC Jr machine responding connectors whe er or the variable spindle control s uter control HE into a ler power uter control controller then you never you are using line If you The CNC Jr has 4 axis ti c MOV capabilities using the rotary table option Mount the rotary table to mill cable from the stepper motor into the W axis connection on the Controller Now the rotary table can be controlled by the W joykeys on the CNCMASTER use the HOME and END keys in a host computer or commands that have a W axis option such as 5 4 Quick Tool Changing System table and plug the This system has a master tool holder which features a R8 taper holder It is held in by the draw bar guickl
20. o the edit mode When finish press the Enter key or Esc key to abort edit PROGRAM HOME MACHINE HOME p Ti O H O mi R The Ctrl F9 combination key will execute the current program on the screen from the first program line until END is found If i l r it finds a CALL command it wil execute and repeat the call outine as indicated bv the call repeat option TRACE The F8 function key allows you to step your program one line at a time starting at the first program line You may terminate this mode with the ESC key or continue without interruption with the Ctrl F9 key You may also enter F5 for further program control IMMEDIATE The F10 function key allows immediate execution of a command Move the cursor to any command line and press the F10 key for immediate execution You may use this command after you have ntered a new line during the teach mode ESCAPE The ESC key is active in every level of the program It will cancel any command in progress and bring you back to the editing screen It is a good escape from any inadvertently entered command Use it to stop a running program FREE JOG With the CNCMASTER computer press the joykeys to start jogging The motor counters keep track of the motor displacement The jog speed can be quickly changed with the FEED
21. program must terminate to other subro EX CALL DRIL END Z O lt lt st ti ti td N SCOOLANT tines must be written after the Each subroutine starts with the with an END command It may con L 10 This command turns the system coolant on off at any part on Ex COOLANT ON your program COOLANT OFF SDELAY Allows you to stop the program at a particular further execution for the time shown in millis out the program will resume Ex DELAY 1000 SEND SFEED the Setup file The FEED command will activate the default f END command of the subroutine name and tain call commands utines but subroutines can not be nested It may be inserted point and delay econds After time This command marks the end of your main program or subprogram CNC JR will not save a program without an END last program line command in the d rate selected in You may also enter a new feed rate immediately after the word FEED The feed command will remain effective until overwritten by another feed command or rapid command The short form of FEED is lt F gt followed by the feed value It may be added at the last value of a move command line G Ex MOVE X2 0 F10 0 G20 G27 Reference point return check G28 Return to reference point
22. s follows IMPORTANT DO NOT ROTATE THE Y AXIS SCREW UNTIL ASSY IS COMPLETED OR BAIL NUT WILL GET DISMANTLED Remove the two 5 16 screws which hold assy Detach the belt cover and swing motor bracket to the left Discard the 5 16 washer included Reposition the two 5 16 screws to secure bracket Insert a 0 5 socket wrench through the 3 4 dia clearance hole and secure motor bracket to the body of the mill end plate with the two supplied screws with lock washers only Reposition belt on pulleys If the belt needs adjustment loosen the four motor screws place a flat screwdriver between motor and bracket and adjust the belt tension as required The belt should not have more than 1 4 deflection at midpoint Re tighten motor screws Attach belt cover Next clean shipping grease from all shiny surfaces on table and quill using a suitable solvent Oil ways and other lubrication points as described in Manual for the Mill Adjust jib strip bolts for a loose fit for the initial testing of the CNC Jr After initial testing and periodically during operation of the CNC Jr adjust jib strip bolts to remove table slack following the directions in the Manual for the Mill Unplug the axis motor connectors for manual operation Using the rotary handles run the X and Y axis back and forth to determine if the tables are moving freely A slight drag should be f
23. ss the Tab key and change the corresponding field Press the F2 key to save the change done Activate joykeys to verify corrected axis direction You may press the help key F1 for additional information With a host computer follow the same setup logic shown above and use the keyboard alternate commands F5 for Port ON OFF If there is a loaded progra and select N for A1t F the memory buffers Press In select RAPID speed Press Press In s s Tab key to enter in NI m on th EW This will scr n then press th Cl ar th For an T F E key to start exercise you wi o the nter and type MO to select on a new command line Always use the move space between key words and data Now use t after the Enter k followed by the abov he wo ey TAB rd MOVE to co the ti ti kev F a SPACI F line Verify graphicall ru xampl now readv it for e the scree Press the GO bu square N at each corner or routin after the the name enter 5 a select rapid speed call rout CA after T to repea program a To save u lt Save as gt program works Samplel a the same the MASTI CJ sample4 s nter key BAR to go to the first bla inter X1 0 for the first move and press the proced
24. ures for X 1 0 and Y 1 0 to n Ow e to ND O f t Fh bi er ine each the NOWS END command line N All programs must terminate with an Wi th the e A number af Use t Now R sof tto EST ts of move and the ro the Go MOVE u tend th e square he Z axis ns ine F Hki cd Het 5 x ED Ins Ins line cer rou a tine nd name it T call labe EST 1 F8 F2 T 1 nder a different name press and answer the questions he trace You may compare your programs T ly your data by depressing key save your program and name Select Port ON and verify in status area of mplete the command Now press the This sequence will repeat t previous inserted command For this new line type Y1 0 ll make a 1 insert menu and type RA to to complete your first command The word MOV scr n F a Ins k ne and editing a command line and a ey square will appear nk space Repeat Finish by inserting and F6 First you will wri 250 down a T F E Ins F to MO and enter Z 250 MO and enter 2 250 to the main program DRILL te in this case is onl Alt Now EN E D command Your program is Go to on Enter DRIL select 1 not the routi Each call line should read lis t
25. ve command Ex MOVE X1 25 Y 870 R The word RAPID on the command line must not be followed except in the Setup file by any other parameters In the setup file the RAPID command must be followed by X Y Z and W parameters You can also enter S to do software reverse for the spindle rotation if necessary Rout SRUNF With There is a restriction the RUNFILE command cannot run a exter comma ti SSCAL ine abel RL ILE the nal nd x RUNF E E he editing file Here you may type in a routine label or any This command simplv adds a blank line at the cursor position on t other command RUNFILE command vou mav run an external G Code file or another CNC Jr file If the file is not in the CNC Jr directory then the correct DOS path must be included with the file name Ex C MYDIR MYPROG CNC sn Fl gt CNC JR file that contains CALLS or other RUNFIL ILE C BOBCAD TEST TAP The scale command allows either one or all of the axis to be scale d If a axis does not require a scale factor use a scale of 1 0 to indicate a scale of 1 Ex SCALE X2 0 Y2 0 21 0 W1 0 SSET The SET HOME command will move the X Y and 7 axis from the machine home position to the set home values or program home 0 0 0 The SET HOME command must appear as the first line of your program The SET HOME comm
26. y little loss of torque 3 0 Setup the CNCMASTER or host computer to the CNC Jr SINSTALLATION Attach the CNCMASTER to the support bracket using a 5 16 by 1 1 2 inches long coarse thread hex head screw and washer Do not use a longer screw or you may damage the base of the CNCMASTER It is recommended that a 486DX or higher IBM compatible computer is used to operate the CNC Jr The initial setup for the operation of the CNC Jr is guite simple If you have a variable spindle then plug in the corresponding 240VAC line first Do not ever plug or unplug this line while the CNC JR controller or computer is turned on Make sure that each motor cable is plugged into the correct connector of the controller Plug the printer cord from the CNCMASTER into the CNC Jr controller and the power cords of the computer and controller into a 120 VAC Once all the connections are made as indicated turn the computer on and run the MASTER software Switch the power on the CNC JR control unit The screen displays DRIVERS OFF it will change it to DRIVERS OK If DRIVERS are still OFF then press and release the KILL button on the CNCMASTER for a host computer press and release the reset button on the CNC Jr control unit If the CNCMASTER display is indicating DRIVERS OK then press the 4 0 The CNCMASTER com other computers d either the A or B MAS
27. y released by pressing a button and a twist on the tool master A new tool is attached by simply pressing the tool Tool holders come in a variety of ized mills and chucks MASTER software holder into the tool master sizes to hold various s allows 10 tool setups The Tool holders can be Contact J amp S Products for a list of quick change tool holders that are available 5 5 Lubrication System The oil reservoir is attached under the speed belt housing Pull the oil reservoir out and fill it with oil Plug the power cord from the oil reservoir into the 120 Volts AC outlet labeled oil on the CNC Jr control Warning Do not use this outlet to drive a will be damaged When t automatically lubricate which include all the t The oil is distributed flow is controlled thro load larger than several critical he CNCMASTER is running it will D amps or the control points on the CNC Jr through a capil able ways ballscrews and the Z axis lary harness and the ugh an electrical valve on the oil reservoir The MASTER software allows you to program the frequency of oil amounts desired that will flow into the machine while it is run information Regular motor ning See the AUT oil 5W 30 work TO OIL command for more well with the lubrication system The milling machine has other oiling points which must be
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