Grizzly G0931 Owner's Manual
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Grizzly G0931 Owner's Manual

47" x 47" cnc router w/t-slot table
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MODEL G0931
47" X 47" CNC ROUTER
w/T-SLOT TABLE
OWNER'S MANUAL
(For models manufactured since 02/21)
COPYRIGHT © APRIL, 2022 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#KS22105 PRINTED IN CHINA
V1.04.22
***Keep for Future Reference***

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Summary of Contents for Grizzly G0931

  • Page 1 (For models manufactured since 02/21) COPYRIGHT © APRIL, 2022 BY GRIZZLY INDUSTRIAL, INC. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. #KS22105 PRINTED IN CHINA V1.04.22...
  • Page 2 This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators. Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death.

  • Page 3: Table Of Contents

    Table of Contents INTRODUCTION ..........2 SECTION 5: ACCESSORIES ......35 Contact Info............ 2 SECTION 6: MAINTENANCE ......38 Manual Accuracy ........... 2 Schedule ............38 Identification ........... 3 Cleaning & Protecting ........38 Controls & Components ......... 4 Lubrication ........... 38 Controller Functions ........

  • Page 4: Introduction

    ID label (see below). This information is required for us to provide proper tech support, and it helps us determine if updated documentation is available for your machine. Manufacture Date Serial Number Model G0931 (Mfd. Since 02/21)

  • Page 5: Identification

    (Behind Cover) ON Button STOP Button Table Y-Axis Limit Switch (on Gantry Beam) Cooling Fan Gantry Spindle Controller Coolant Hoses Power Connection To reduce your risk of serious injury, read this entire manual BEFORE using machine. Model G0931 (Mfd. Since 02/21)

  • Page 6: Controls & Components

    B. Spindle: Motor shaft that holds the cutting tool, spindle nut, and collet. C. ER20 Collet: Holds cutting tool. D. Spindle Nut: Secures collet and cutting tool on spindle. Figure 4. Hand-held controller. H. Controller: Controls machine functions. Model G0931 (Mfd. Since 02/21)

  • Page 7: Controller Functions

    X+ or 1: Moves spindle motor along X-axis in positive direction. Scrolls menu up. Input for "1". Y+ or 2: Moves spindle motor along Y-axis in positive direction. Increases feed rate. Scrolls sub-menu up. Input for "2". Model G0931 (Mfd. Since 02/21)

  • Page 8: Glossary Of Terms

    The following is a list of common definitions, terms and phrases used throughout this manual as they relate to this CNC router and woodworking in general. Become familiar with these terms for assembling, adjusting or operating this machine. Your safety is VERY important to us at Grizzly! Compression Bit: A cutting tool with a combi- Axis: Direction of movement.
  • Page 9 An “out of soft limits error” implies that there is not enough room to move in a designated direction based on the positioning of the workpiece. Model G0931 (Mfd. Since 02/21)

  • Page 10: Machine Data Sheet

    Frame Size ................................ NEMA 34 Amps .................................... 4A Speed ................................. 0 - 2000 RPM Type ........................Stepper (Brushless, Permanent Magnet) Power Transfer ................................ Direct Step Resolution ............................ 1.8 deg. Per Step Model G0931 (Mfd. Since 02/21) Page 1 of 2 Model G0931...
  • Page 11 RichAuto DSP A11 Handheld Controller with USB Port and Keypad Water Cooled Spindle with Included Water Pump Aluminum Table with T-Track and PVC Padding Tool Touch-Off Pad for Quickly Setting Z-Axis Height Model G0931 (Mfd. Since 02/21) Page 2 of 2 Model G0931...

  • Page 12: Section 1: Safety

    Never operate under the influence of drugs or injury or blindness from flying particles. Everyday alcohol, when tired, or when distracted. eyeglasses are NOT approved safety glasses. -10- Model G0931 (Mfd. Since 02/21)
  • Page 13 Make sure they are properly installed, you experience difficulties performing the intend- undamaged, and working correctly BEFORE ed operation, stop using the machine! Contact our operating machine. Technical Support at (570) 546-9663. -11- Model G0931 (Mfd. Since 02/21)

  • Page 14: Additional Safety For Cnc Routers

    This will prevent them from immediately. Do not use damaged tools as they being thrown by the spindle upon startup. are likely to break apart and could hit user with great speed and force. -12- Model G0931 (Mfd. Since 02/21)

  • Page 15: Section 2: Power Supply

    To reduce the risk of these hazards, avoid over- loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements. -13- Model G0931 (Mfd. Since 02/21)
  • Page 16 Minimum Gauge Size ......12 AWG all local codes and ordinances. Maximum Length (Shorter is Better)..50 ft. -14- Model G0931 (Mfd. Since 02/21)

  • Page 17: Section 3: Setup

    IMPORTANT: Save all packaging materials until you are completely satisfied with the machine and have resolved any issues between Grizzly or the shipping agent. You MUST have the original pack- aging to file a freight claim. It is also extremely helpful if you need to return your machine later.

  • Page 18: Inventory

    R. 50-Pin Cable ..........1 S. RichAuto A11 Controller ......1 Cooling Pump ..........1 U. Quick-Disconnect Tube Couplings ..... 4 Fuses 10A (Spares) ........2 W. Limit Switch (Spare) ........1 Figure 8. Box 1 inventory. -16- Model G0931 (Mfd. Since 02/21)

  • Page 19: Site Considerations

    Shadows, glare, or strobe effects that may distract access restricted location. or impede the operator must be eliminated. Wall Minimum 30" Dust Port 70" 86¾" = Power Connection 62½" Figure 9. Minimum working clearances. -17- Model G0931 (Mfd. Since 02/21)

  • Page 20: Lifting & Placing

    Bolt ing legs (see Figure 10). Fixed Nut Lower machine on leveling feet and proceed Leveling to Leveling on this page. Foot Figure 10. Leveling foot components. -18- Model G0931 (Mfd. Since 02/21)

  • Page 21: Connecting Cooling Pump

    Connect either coolant tube from back of machine to cooling pump outlet (see Pump Figure 12). The Model G0931 includes an external pump that Outlet cools the spindle motor. Coolant tubes come pre- installed on the motor and run through the cable carrier.

  • Page 22: Connecting Controller

    Controller hole in cabinet floor (see Figure 14). 50-Pin Cable The Model G0931 includes a RichAuto A11 hand- Connector held motion controller that controls all machine functions using G-code. The RichAuto control system uses an interface board located in the...

  • Page 23: Dust Collection

    "how-to" book. Dust Port Figure 17. Tightening dust hose clamp. Tug hose with light/medium force to make sure it does not easily come off. Note: A tight fit is necessary for proper performance. -21- Model G0931 (Mfd. Since 02/21)

  • Page 24: Test Run

    NOT working properly and must be replaced before further using the machine. Connect machine to power by inserting power cord socket into machine (see "Power Connection," Identification on Page 3), then inserting power cord plug into a matching receptacle. -22- Model G0931 (Mfd. Since 02/21)

  • Page 25: Verifying Parameters

    OK to verify. Toolset Setup — To change a parameter, press RUN/ PAUSE, then enter the new parameter. C.A.D. Thickness Press OK to save. FlrHght ............15.000 C.A.D. Pickup PckupHgh ..........10.000 -23- Model G0931 (Mfd. Since 02/21)
  • Page 26 Press RUN/PAUSE to cycle arrow direction Press RUN/PAUSE to change setting. up (normally closed) or down (normally open). Press OK to save changes and return to Press OK to save changes and return to menu screen. menu screen. -24- Model G0931 (Mfd. Since 02/21)

  • Page 27: Section 4: Operations

    Read books/magazines or get formal training before beginning any proj- ects. Regardless of the content in this sec- tion, Grizzly Industrial will not be held liable for accidents caused by lack of training. -25- Model G0931 (Mfd. Since 02/21)

  • Page 28: Workpiece Inspection

    Minor Warping: Workpieces with slight cup- • ping can be safely supported if cupped side is facing table. On the contrary, a workpiece supported on the bowed side will rock during a cut and could cause severe injury. -26- Model G0931 (Mfd. Since 02/21)

  • Page 29: Changing Cutter

    Place scrap material or shop rag under spindle to catch cutter. Remove spindle nut with 30mm open-end wrench (see Figure 21), then remove collet and cutter. Place new cutter in collet, then tighten spin- dle nut to secure cutter. -27- Model G0931 (Mfd. Since 02/21)

  • Page 30: Clamping Workpiece

    (see Figure 23). Clamp Adjusting Wing Nuts Workpiece Spoilboard T-Bolts Slid Into T-Slots Figure 24. Example of spoilboard clamped to CNC router bed. Figure 23. Clamping workpiece to table. -28- Model G0931 (Mfd. Since 02/21)

  • Page 31: Adjusting Axis Positions Manually

    Press OK after all parameters have been saved to start mill plane operation. Surfacing Spoilboard The G0931 can be used to surface a spoilboard Adjusting Axis or workpiece using the mill plane feature and an appropriate cutter (see Choosing Cutter on Positions Manually Page 26).

  • Page 32: Homing Axes

    Slowly step Z-axis down while slid- farthest positions. ing paper until paper cannot move. Verify all machine parameters listed in Press XY->0 to set X- and Y-axis origin. Verifying Parameters on Page 23. Press Z->0 to set Z-axis origin. -30- Model G0931 (Mfd. Since 02/21)

  • Page 33: Creating G-Code File

    Verifying Default Parameters on Page 23. Before operations can be run on the Model G0931, a toolpath must be designed and con- Clamp workpiece to table, insert cutter, and verted to G-code. CAM software converts a CAD load G-code to controller.

  • Page 34: Uploading & Running G-Code

    — WorkSpd (feed rate in mm/sec.). — FastSpd (movement speed between cuts in mm/sec.). — SpdScale (spindle speed ratio). — FallDown (Z-axis speed ratio). Scroll to desired parameter and press RUN/ PAUSE to change value, then press OK. -32- Model G0931 (Mfd. Since 02/21)

  • Page 35: Changing Advanced Settings

    — SpdScale (spindle speed ratio). age to the machine, workpiece, or cutter. — FallDown (Z-axis speed ratio). Many advanced functions of the G0931 are turned Scroll to desired parameter and press RUN/ off by default. Notably, S and F letter addresses PAUSE to change value, then press OK.

  • Page 36: Using Advanced Controls

    Using Advanced Manually Setting Controls Spindle Speed All the basic controls of the G0931 are performed Pressing ON/OFF and Z+ or Z- buttons together through single-button commands on the control- while the spindle is running will increase or ler, but some advanced features require multi- decrease the spindle speed through a range of button commands to access.

  • Page 37: Section 5: Accessories

    To reduce this risk, only install accessories ⁄ " shank and 2 ⁄ " overall length, this set comes recommended for this machine by Grizzly. with ⁄ ", ⁄ ", and ⁄...
  • Page 38 Especially important if you or employees operate for hours at a time. H4979 H4978 Figure 31. W1050 Dust Collection Basics Book. Figure 33. Hearing protection. www.grizzly.com 1-800-523-4777 order online at or call -36- Model G0931 (Mfd. Since 02/21)
  • Page 39 Also compatible with safety glasses! Figure 37. Recommended products for protect- ing unpainted cast iron/steel parts on machinery. Figure 35. Half-mask respirator with disposable cartridge filters. www.grizzly.com 1-800-523-4777 order online at or call -37- Model G0931 (Mfd. Since 02/21)

  • Page 40: Section 6: Maintenance

    Never blow off the Model G0931 with compressed air, as this Schedule could force debris deep into the mechanisms and airborne material fragments may cause injury to yourself or bystanders.
  • Page 41 Figure 39. Example of Y-axis guide rail components. Use a clean shop rag to wipe entire length of guide rails with Grizzly T27914 or ISO 68 equivalent. Turn machine ON and move gantry several times over full range of Y-axis travel to spread Figure 38.
  • Page 42 Figure 41. Example of X-axis ball screw and guide rail components. Use clean brush to wipe entire length of ball screw threads with Grizzly T27914 or ISO 68 equivalent. Use clean shop rag to wipe entire length of guide rails with Grizzly T27914 or ISO 68 equivalent.

  • Page 43: Coolant

    (2) flat head cap screws and flat washers on upper end of spindle dust cover (see Figure 42). Coolant The Model G0931 spindle motor requires a con- stant flow of coolant to prevent overheating. It is Spindle recommended that distilled water be used to pre- Dust vent mineral buildup inside the system.

  • Page 44: Section 7: Service

    3. Workpiece loose. 4. Bit chattering. 4. Replace/sharpen cutter; index cutter to workpiece; use correct feed rate and spindle speed. 5. Collet at fault. 5. Replace collet. 6. Level machine (Page 18). 6. Machine not level. -42- Model G0931 (Mfd. Since 02/21)
  • Page 45 4. Loose limit switch wire. 4. Secure connection. 5. Limit switch at fault. 5. Test (Page 45)/repair/replace limit switch. 6. Interface board at fault. 6. Inspect/replace if needed. 7. 50-pin data cable at fault. 7. Replace cable. -43- Model G0931 (Mfd. Since 02/21)
  • Page 46 4. Display at fault. 4. Replace controller. Controller screen 1. Wrong connections at interface board. 1. Rewire interface board. says spindle is ON when spindle is OFF and spindle is OFF when spindle is ON. -44- Model G0931 (Mfd. Since 02/21)

  • Page 47: Testing Limit Switches

    Touch each limit switch target with a scrap piece of iron or steel (see Figure 45). Switches Touch Here If the Model G0931 is no longer homing properly, or one or more axes is unresponsive, test each limit switch for proper operation. Item Needed Scrap Iron or Steel ..........

  • Page 48: Updating Richauto Controller Software

    — If arrow does point up on axis swapped in Verify machine parameters on controller Step 7, replace faulty limit switch. match those shown on Page 23. — If arrow does not point up on axis swapped in Step 7, replace interface board. -46- Model G0931 (Mfd. Since 02/21)

  • Page 49: Setting Stepper Driver Dip Switches

    DIP switches (see Figure 48). Switch Figure 49. DIP switch configuration. Close electrical cabinet and proceed to Test Run on Page 22 to verify machine functions properly. Figure 48. Stepper driver DIP switch locations. -47- Model G0931 (Mfd. Since 02/21)

  • Page 50: Section 8: Wiring

    Technical Support at (570) 546-9663. The photos and diagrams included in this section are best viewed in color. You can view these pages in color at www.grizzly.com. -48- Model G0931 (Mfd. Since 02/21)

  • Page 51: Spindle Wiring Diagram

    S1 S2 S3 S4 FILTER CONVERTER − − U1 V1 W1 Y1 Y2 Y3 Y4 POWER SUPPLY SPINDLE MOTOR 0V 24V Figure 50. EMERGENCY STOP and ON Figure 51. VFD. buttons. READ ELECTRICAL SAFETY -49- Model G0931 (Mfd. Since 02/21) ON PAGE 48!

  • Page 52: Axis Motor Wiring Diagram

    GND PUL+ PUL− DIR+ DIR− A− B− A− B− STEPPER STEPPER DRIVER DRIVER X-AXIS Z-AXIS MOTOR MOTOR PULSE PULSE GND PUL+ PUL− DIR+ DIR− A− B− STEPPER DRIVER Y-AXIS MOTOR READ ELECTRICAL SAFETY -50- Model G0931 (Mfd. Since 02/21) ON PAGE 48!

  • Page 53: Contactor Wiring Diagram

    Contactor Wiring Diagram EMERGENCY STOP LIMIT SWITCH CONTACTOR CONTACTOR LIGHT Figure 52. Contactor, fuse holders, and EMI Figure 53. Electrical cooling fan locations. filter. READ ELECTRICAL SAFETY -51- Model G0931 (Mfd. Since 02/21) ON PAGE 48!

  • Page 54: Interface Board Wiring Diagram

    PULSE SHIELD SHIELD 24V DC POWER SUPPLY Figure 54. Stepper drivers. Figure 56. 40VAC/24VDC power supplies. Figure 55. RichAuto interface board. Figure 57. Z-axis motor and limit switch. READ ELECTRICAL SAFETY -52- Model G0931 (Mfd. Since 02/21) ON PAGE 48!

  • Page 55: Electrical Components

    Electrical Components Figure 58. Spindle motor and Z-axis tool setter. Figure 59. X-axis limit switch. Figure 60. Y-axis limit switch. READ ELECTRICAL SAFETY -53- Model G0931 (Mfd. Since 02/21) ON PAGE 48!

  • Page 56: Section 9: Parts

    SECTION 9: PARTS We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown are available for purchase. Call (800) 523-4777 or visit www.grizzly.com/parts to check for availability. Main BUY PARTS ONLINE AT GRIZZLY.COM! -54- Model G0931 (Mfd.
  • Page 57 SIDE GUARD COVER P0931064 CAP SCREW M8-1.25 X 35 P0931032 CABLE CARRIER P0931065 Y-AXIS MOVEMENT LABEL P0931033 E-STOP BUTTON YJ139-XB2 30MM BUY PARTS ONLINE AT GRIZZLY.COM! -55- Model G0931 (Mfd. Since 02/21) Scan QR code to visit our Parts Store.

  • Page 58: Gantry & Spindle

    Gantry & Spindle 157-3 157-4 157-1 157-5 157-2 BUY PARTS ONLINE AT GRIZZLY.COM! -56- Model G0931 (Mfd. Since 02/21) Scan QR code to visit our Parts Store.
  • Page 59 SPINDLE DIRECTION LABEL P0931144 CABLE CONDUIT P0931183 X-AXIS MOVEMENT LABEL P0931145 COOLANT TUBE 6MM ID X 8MM OD P0931184 Z-AXIS MOVEMENT LABEL BUY PARTS ONLINE AT GRIZZLY.COM! -57- Model G0931 (Mfd. Since 02/21) Scan QR code to visit our Parts Store.

  • Page 60: Electrical Cabinet Components

    DSP CONTROLLER RICHAUTO A11E P0931219 WIRE LOOM 50 X 220MM P0931210 TERMINAL BAR 8P M4-.7 X 12 P0931220 WIRE LOOM 50 X 160MM BUY PARTS ONLINE AT GRIZZLY.COM! -58- Model G0931 (Mfd. Since 02/21) Scan QR code to visit our Parts Store.

  • Page 61: Labels & Cosmetics

    Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes off or becomes unreadable, the owner of this machine MUST replace it in the original location before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com. BUY PARTS ONLINE AT GRIZZLY.COM! -59- Model G0931 (Mfd.

  • Page 63: Warranty & Returns

    WARRANTY & RETURNS Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance.

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