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BobsCNC QUANTUM MINI Assembly Manual

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MINI
Assembly Manual
Rev 1.0

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Summary of Contents for BobsCNC QUANTUM MINI

  • Page 1 MINI Assembly Manual Rev 1.0...
  • Page 2 Welcome to the Family. We’re excited that you purchased the Quantum MINI CNC Router Kit from BobsCNC, and we know you’re just as excited to put it together. This manual gives you step by step instructions to ensure your success in assembling the Quantum MINI and provides all the information you need to get your machine up and running.

  • Page 3: Table Of Contents

    Getting Started ..............................7 Required Tools: ............................. 7 To Assemble the Quantum CNC Kit ..................... 7 To Operate the BobsCNC Quantum CNC Router, you need will need: ........7 Recommended for the electronic setup include: ................7 Assembly Recommendations: ........................8 Belt Drive ................................
  • Page 4 Tramming ............................... 132 Clamping System ............................134 Wood Components (Included with Kit)..................134 Required Hardware ..........................134 Congratulations! You Just Completed the Assembly of Your BobsCNC Quantum CNC Router, Mini..............................135 Appendix ................................ 136 Firmware Values ............................136 Quantum Washer Size Table ......................137...
  • Page 5 BobsCNC Quantum Specifications The assembled footprint: Length: 38" (965 mm) Width: 40" (1016 mm) Height: 22" (559 mm) Assembled Weight: 35 lbs. Cutting Area: 16" (407 mm) 16" (407 mm) 3.8" (98 mm) Safety is always the First Priority. Always wear proper protective equipment and use "safety sense"...

  • Page 6: Information/Warning Boxes

    Information/Warning Boxes CAUTION Indicates a possible risk of injury that can result from failure to follow this instruction WARNING Indicates the possible damage to the machine, its components, the work piece, or injury that can result from failure to follow this warning. DANGER Indicates a serious risk of bodily harm, injury and death.

  • Page 7: Safety Precautions And Warnings

    Safety Precautions and Warnings BobsCNC Routers have a 110 v. Power Supply and use bits that spin at 30,000 rpm with cutting edges that are sharp and hazardous. The operator must understand the potential hazards and is responsible to take appropriate safety precautions before operating the Router.

  • Page 8: Getting Started

    Utility Knife Clear Nail Polish or Locktite™ Scissors Blue Painter’s Tape To Operate the BobsCNC Quantum CNC Router, you need will need: Computer with control software for GRBL. Materials for Projects. 1/4” Shaft Router bits. Recommended for the electronic setup include:...

  • Page 9: Assembly Recommendations

    Assembly Recommendations: Use a large, flat, clean work surface for assembling your Quantum Mini. All Screws (unless noted) should be installed snug, then rotated 1-2 ½ turns. Apply LOCTITE™ or clear fingernail polish to all M4 X 16 mm Machine Screw that are used to secure plywood pieces.

  • Page 10: Belt Drive

    Belt Drive Wood Components (Included with Kit) Part # Description Photo XY Stepper Motor Mount Required Hardware Part # Description Photo Flanged Bearing F635Z M5 x 30 Machine Screw M5 Lock Nut Idler Fender Washer Small Black Washer GT2 Pulleys M3 x 10 M3 Washer CB11...

  • Page 11: Illustrated Step By Step Instructions

    Illustrated Step by Step Instructions Step 1 Preparing the Stepper Motors for Mounting Step 1a Align one of the Set Screws of the GT2 Pulley (H84) to the flat surface of the Stepper Motor (CB11) Shaft. Snug the Set Screw so that it engages the shaft but still allows the Drive Pulley to slide down the shaft.
  • Page 12 Step 1b Use an Idler Fender Washer (H50) as a shim and gently slide the Drive Pully down to the surface of the Washer. Fully tighten the Set Screw against the flat. Tighten the second Set Screw. Remove the Idler Fender Washer.
  • Page 13 Step 2 Mounting the Stepper Motors Step 2a Build four Idler Bearing Assemblies using one (H48) M5 x 30 Machine Screw, two (H86) Flanged Bearings, and two (H50) Idler Fender Washers in the sequence shown below. Be sure the head of the Machine Screw fits against the Bearing flange and the other is mounted so that both flanges are oriented outboard from each other.
  • Page 14 Repeat to install the remaining Idler Assembly. Step 2c Align the mounting holes of the Stepper Motor with holes in the X, Y Stepper Motor Assemblies.
  • Page 15 Secure the Stepper Motor to the Stepper Motor mount with four M3 x 10 Machine Screws (H37) with M3 Washers (H88). NOTE: When viewed from the back, the Stepper Motor wires of each Motor are oriented in three directions. The wires of the Y Stepper Motor are centered between the Flanged Bearing and run upward.
  • Page 16 NOTE: When properly installed, the flanges of the Flanged Bearings will frame the teeth of the Drive Pulley (see below). Drive Pulley Flanges...

  • Page 17: Frame Instructions

    X Frame Instructions Required Wood Components Part # Description Photo QX1M Rail Support Frame Mid Support QX4M QX5M Frame Side Support QX6M Frame End Support Frame Corner Support QX11 Belt Support...

  • Page 18: Required Hardware

    Required Hardware Part Description Photo M4 x 16 Machine Screw M4 Nut Illustrated Step by Step Instructions Step 1 Build the Side Assemblies. IMPORTANT: The long, open slots in the Frame Side Support (QX5M) are oriented toward the bottom of the X Frame Assembly.
  • Page 19 Step 1a Insert the tabs of four Rail Support (QX1M) in the slots of the Frame Side Support (QX5M) and secure each with two M4 x 16 Machine Screws (H14) and Nuts (H15). Step 1b Repeat to complete the other Side Frame Support...
  • Page 20 Step 2 Slide the open slot of the Frame Side over the Outer Frame Mid Support (QX4M). Insert the tabs of the Outer Frame Mid Support into the upper slot of the Frame Side Support and secure with one M4 X 16 Machine Screw and Nut as shown.
  • Page 21 Step 2b Repeat the steps to install the other Frame Side Support to the two Outer Frame Mid Supports on the other side.
  • Page 22 Step 3 Align the tabs of the four Frame Corner Supports (QX8) with the slots of the Frame Side Support and secure each with two M4 X 16 Machine Screws and Nuts. Make sure the hole in the Frame Corner Support is oriented toward the end of the X Frame as shown.
  • Page 23 Step 4 Insert the tabs of the each of the Belt Support (QX11) into the slots located at each end of the X Assembly and secure with two M4 x 16 Machine Screws and Nuts for each.
  • Page 24 Step 5 Align the tabs of the X Frame Assembly into the slots of the Frame End Support (QX6M) and secure with twelve M4 X 16 Machine Screws and Nuts for each end as shown.

  • Page 25: Z Spindle Mount Assembly

    Z Spindle Mount Assembly: Required Wood Components Part # Description Photo Back Frame Side Support Top Brace Top Spindle Mount Inner Spindle Mount Mid Spindle Mount Outer Spindle Mount...

  • Page 26: Required Hardware

    Required Hardware Part Description Photo M6 x 35 Machine Screws M6 Locknuts Eccentric Spacer Eccentric Washer Bearing Fender Washer SG20U ZD12 ACME Nut Assembly M5 X18 M5 Lock Nut M4 x 16 Machine Screw M4 Nut M5 x 30 Machine Screw M5 Square Nut...

  • Page 27: Illustrated Step By Step Instructions

    Idler Fender Washer M4 x 35 Machine Screw M4 lock Nut Illustrated Step by Step Instructions...
  • Page 28 Step 1 Building the G20U Bearing Assemblies. NOTE: the Bearing Assembly Order: M6 x 35 Machine Screw (H95), SG20U Bearing(H44) with hub facing toward the Bearing Fender Washer (H42), Eccentric Washer (H41), Eccentric Spacer (H40), M6 Locknut (H18). When inserting the Bearing Assembly through the Back Frame (QZ1) make sure the Hub of the G20U Bearing faces the Bearing Fender Washer which is pressed...
  • Page 29 Step 1a Insert the bearing Assemblies through the mounting holes in the Back Frame (QZ1) with the Bearing Fender Washer (H42) against the wood and the Hub against the Bearing Fender Washer as shown. Step 1b Slide the Eccentric Washer (H41) over the Eccentric Spacer (H40) inserting the shaft of the M6 X 35 Machine Screw (H95)through the Eccentric Spacer as...
  • Page 30 Secure the Bearing Assembly in place with an M6 Lock Nut (H18) on each of the four Assemblies Step 2 Building the Router Mount. Step 2a Slide the two Idler Fender Washers (H50) onto the M5 X 30 Machine Screw (H48) and secure with the M5 Square Nut (H93).
  • Page 31 Step 2b Place the Screw, Nut and Washer Assembly into the Inner Spindle Mount (QZ5). Be sure the Square Nut and Washers are nested into their slots, as shown. Step 2c Position the Mid Spindle Mount (QZ6) over the Inner Spindle Mount and the Screw, Nut and Washer Assembly, as shown.
  • Page 32 Step 2d Making sure the Screw, Nut and Washer Assembly stay in place, carefully turn the Spindle Mount Assembly over and cover with the second Mid Spindle Mount (QZ6) as shown. Step 2e Install the two Outer Spindle Mounts (QZ7) on the top and bottom of the Router Mount Assembly.
  • Page 33 Step 2f While holding the Assembly stack together, insert two M4 x 35 Machine Screws (H85) through the bottom of the Assembly and secure with two M4 Lock Nuts (H47) as shown. Adjustment Slot The Assembly stack can be oriented so that the slot for securing the Router is located on either the left or right side with the curved front corners facing you.
  • Page 34 Step 2g Align the tabs of the stack with the slots in the Back Plate Assembly and secure with four M4 x 16 Machine Screws and Nuts. You may find it helpful to set the two M4 Nuts in the top before fully seating the tabs.
  • Page 35 Step 2h Align the tabs of the Top Spindle Mount (QZ4) with the slots in the Back Plate Assembly and secure with two M4 Machine Screws X 16 and Nuts as shown. Step 2i Align the tabs of the Top Brace (QZ3) with the slots in the Back Plate Assembly and secure with two M4 X 16 Machine Screws and Nuts as shown...
  • Page 36 Step 2j Align the tabs of the Router Mount Assembly with the slots in the Side Support (QZ2) and secure with six M4 x 16 Machine Screws and Nuts. Repeat to install the other Side Support. Step 2k Prepare the ACME Nut Assembly (ZD12) by inserting two M5 Lock Nuts (H49) in the ACME Block.
  • Page 37 Step 2l Insert two M5 x 18 Machine Screws (H97) through the Router Mount Assembly as shown and secure the ACME Nut Assembly in place as shown. The slot in the ACME Nut must be oriented on the bottom as shown.
  • Page 38 Left Side Right Side...

  • Page 39: Y Carriage Assembly And Z Assembly

    Y Carriage Assembly and Z Assembly Required Wood Components Part # Description Photo Z Stepper Motor Mount Carriage Top Support Bearing Retainer Plate Carriage Frame Carriage Side Support Z Rail Stop Outer Rail Support...

  • Page 40: Required Hardware

    Required Hardware Part # Description Qty Photo M6 x 35 Machine Screws Locknuts Eccentric Spacer Eccentric Washer Bearing Fender Washer SG20U Bearing Bearing Retainer Washer M4 x 20 M4 Lock...
  • Page 41 CB11 Stepper Motor M3 x 10 Machine Screw washer Aluminum Helical Coupler 626-2RS Bearing 6mm Split Locking Collar ACME Screw ¼ inch Shim Washer M4 Nut M4 x 16 Machine Screw Stress Proof Steel Z- Rail...

  • Page 42: Illustrated Step By Step Instructions

    Home CB19 Switch M2.5 x 16 Machine Screw M2.5 Lock Nut Illustrated Step by Step Instructions...
  • Page 43 Step 1 Installing the Upper and Lower Bearings Mounting Holes for Upper Bearings Mounting Holes for Lower Bearings Step 1a Install the two Upper SG20U Bearing Assemblies for the Carriage Frame (QY4). The assembly order for the Upper Bearing: M6 x 35 Machine Screw (H95), SG20U Bearing(H44) with hub facing toward the Bearing Washer (H42), Plywood, Bearing Fender Washer (H42) secured with a M6 Lock Nut (H18) as...
  • Page 44 Step 1b Install the two lower SG20U Bearings for the Y Carriage Assembly as shown. The assembly order for the Lower Bearings: M6 x 35 Machine Screw (H95), SG20U Bearing (H44) hub facing toward the Bearing Fender Washer (H42), Plywood, Eccentric Washer (H41), Eccentric Spacer (H40) secured with a M6 Lock Nut (H18).
  • Page 45 Step 2 Building the Y Carriage Assembly Step 2a With the Bearings facing down, align the tabs of the Carriage Bottom Support (QY7) with the slots at the bottom of the Carriage Frame (QY4) and secure with two M4 x 16 Machine Screws and Nuts.
  • Page 46 Step 2c Align the tabs of the remaining Outer Rail Support (QY8) with the next set of slots above in the Carriage Frame Assembly and secure with three M4 x 16 Machine Screws and Nuts. Step 2d Slide the narrow tongue of the Carriage Top Support (QY2) through the long narrow slot at the top of the Carriage Frame Assembly, as shown.
  • Page 47 Step 2e Carefully thread the Dupont Connector and the Stepper Motors wires of the Z Stepper Motor Mount Assembly through the upper Outer Rail Support. Continue threading the wires through the rectangular slot just beneath the Carriage Top Support.
  • Page 48 Step 2f With most of the wire threaded through the Y Carriage Assembly, align the tabs of the Z Stepper Motor Assembly with the corresponding slots in the Carriage Frame Assembly. Step 2g Align the tabs and slots of the Carriage Side Support (QY5) with the Y Carriage Frame Assembly and secure eight M4 x 16 Machine Screws and Nuts.
  • Page 49 Step 2h Attach the Z Rail Stop (QY6) to the bottom of the Y Carriage Frame Assembly and secure with two M4 x 20 Machine Screws (H98) and Lock Nuts (H47). Step 3 Attaching the Z Carriage to the Y Carriage Frame Assembly This closeup view shows the Locknut tightened against the...
  • Page 50 Step 3a With the Locknut firmly snugged against the face of the Eccentric Spacer use a 13mm socket to turn just the Eccentric Spacer as shown below. IMPORTANT Make sure the points on the wide edge of the Eccentric Spacers of the upper Bearings pointing down and the...
  • Page 51 Step 3b Carefully set the Z Carriage Assembly onto the Y Carriage Assembly as shown.
  • Page 52 Step 3c Carefully slide the Z Rail (H54) through the hole in Carriage Top Support (QY2), through both Outer Rail Supports (QY8) and past the Bearings until it is seated at the bottom of the Y Carriage Assembly. Top View Bottom View...
  • Page 53 Step 4 Installing the Acme Screw. Step 4a Thread the Acme Rod Assembly through the hole located at the front of the Carriage Top Support (QY2) and into the Acme Nut. Rotate the Acme Screw through the Acme Nut until the bearing touches the Carriage Top Support.
  • Page 54 Step 4b Place the Bearing Retainer Plate (QY3) over the ACME Screw Assembly and secure with three M4 x 20 (H98) Machine Screws and Bearing Retainer Washers (H57), and M4 Locknuts (H47).
  • Page 55 The Bearing Retainer Plate (QY3) is designed so that the Bearing Retainer Washers cover the Bearing race to hold it in place. Step 5 Installing the Z Home Switch. Step 5a Align Home Switch Arm down as shown. Secure Home Switch with two M2.5 X 16 Machine Screws (H27) and Locking Nuts (H43).
  • Page 56 Step 5b Route the Home Switch wire down through the access hole and through the elongated hole in the Carriage Frame as shown. Step 6 Installing the Z Stepper Motor. Step 6a Mount the Z Stepper Motor through the large hole in the (QY1) Z Stepper Motor Mount.
  • Page 57 Step 6b Route the Z Stepper Motor wire through the small hole at the back of the Mount as shown. Continue routing the wires through the Carriage Top Support (QY2) and the small rectangular hole in the Carriage Frame (QY4) beneath the Carriage Top Support as shown.
  • Page 58 Step 6c Before aligning the tabs of the Carriage Frame Assembly with the slots in the Z Stepper Motor Mount, make sure that the flat of the Stepper Motor shaft lines up with a Set Screw in the Helical Coupler as shown.
  • Page 59 Step 6d Carefully slide the Stepper Motor Shaft into the Helical Coupler. Then fit the tabs of the Carriage Frame Assembly into the slots in the Z Stepper Motor Mount and secure with four M4 x 16 Machine Screws and Nuts. Step 6e Carefully tighten both set screws on the Helical Coupler against the Stepper...

  • Page 60: Gantry Assembly

    Gantry Assembly Required Wood Components Part # Description Qty Photo QG1M Gantry Frame Gantry Side Support Gantry Cross brace Y Rail Support Controller Mount Gantry Back Brace QG8M Gantry Top/Bottom Brace Gantry Side...

  • Page 61: Required Hardware

    QG10 Gantry Lower Side Brace Required Hardware Part Description Photo M6 X 35 Machine Screws M6 Lock Nut Eccentric Spacer Eccentric Washer Bearing Fender Washer SG20U Bearing M4 x 16 Machine Screws M4 Nut CB19 Home Switch M2.5 x 16 Machine Screw M2.5 Lock Nut Stress Proof Steel...

  • Page 62: Illustrated Step By Step Instructions

    Illustrated Step by Step Instructions Step 1 Building the Gantry Side Assemblies. NOTE: The two Side Assemblies will mirror each other when completed. Prior to assembly, orient the parts of the side you are building as shown.
  • Page 63 Step 1a Lay out two Gantry Side Supports (QG2) and a completed Stepper Motor Mount Assembly. Be sure that with the Bearings resting on the table as shown to ensure the Stepper Motor Wires are oriented in the correct direction as shown.
  • Page 64 Step 1b Align the tabs of the Stepper Motor Mount Assembly with the slots in the Gantry Side Support (QG2) and secure with one M4 x 16 Machine Screw. Repeat to install the other Gantry Side Support. Remove the tape after tightening.
  • Page 65 Step 1c Align the tabs of the Gantry Lower Side Brace (QG10) and slide it into the slots in the Assembly as shown.
  • Page 66 Step 1d Carefully align the tabs of the Support Assembly and slide them into the slots in the Gantry Side (QG9). Secure with twelve M4 x 16 Machine Screws and Nuts.
  • Page 67 Step 1e Align the slots of the two Gantry Cross Braces (QG3) with the slots in the Assembly. Carefully insert the tabs in the corresponding slots and secure each with three M4 x 16 Machine Screws and Nuts. Repeat these steps to complete the other Gantry Side Support Assembly.
  • Page 68 Finished Gantry Side Assemblies Each completed Assembly is a mirrored copy of the other. It is essential that the Stepper Motor wires are oriented as shown.
  • Page 69 Step 2 Building the Gantry Back Assembly. IMPORTANT: The two smaller rectangular cutouts in the Gantry Frame (QG1M) indicate the top of the Gantry Frame. Step 2a Attach the five Y Rail Supports (QG4) to the Gantry Frame (QG1M) and secure each with two M4 X 16 Machine Screws and Nuts as shown.
  • Page 70 Step 2b Align the tabs and slots of the Gantry Bottom Brace (QG8M) with the Gantry Frame Assembly. Secure with eleven M4 x 16 Machine Screws and Nuts.
  • Page 71 Step 2c Insert the tabs of the Controller Mount (QG5) into the slots in the Gantry Assembly as shown below. Secure each with two M4 x 16 Machine Screws and Nuts. Step 2d Align the tabs of the Back Frame Assembly with the slots in the Gantry Top Brace (QG8) and Controller Mount (QG5).
  • Page 72 Step 2e Align and insert the tabs of the two Gantry Back Braces (QG6) into the slots of the Gantry Frame Assembly and secure each with three M4 x 16 Machine Screws and Nuts as shown. Repeat to install both braces.
  • Page 73 Step 2f Align and fit the tabs of the Gantry Assembly into the slots of the left Gantry Side Assembly and secure with seven M4 x 16 Machine Screws and Nuts. Repeat for the right side Completed Assembly.
  • Page 74 Step 3 Attaching the X1, X2, and Y Home Switches. Step 3a Take the three Home Switches (CB13) and label the DuPont Connectors “X1”, “X2” and “Y”. With the Gantry Assembly lying as shown, attach the X1 and X2 Home Switches.
  • Page 75 Attach each Home Switch with two M 2.5 X 16 Machine Screws (H27) and M2.5 Lock Nuts (H43). Orient the Screw Head so that it tightens against the Switch housing. Route the X1 Home Switch wire from the Mount up and through the hole in the Side Assembly, across the Gantry and through the Controller Mount as shown...
  • Page 76 Secure wires with a Zip Tie. Trim excess material after securing. Route the Home Switch wire across the Gantry and through the Controller Mount as shown. Follow the same procedure to install X2 Home Switch.
  • Page 77 Step 3b Before installing the “Y” Home Switch route the Home Switch wire through the rectangular opening in the upper front left corner as shown. Run the wire through the small hole in the top of the Side Assembly and through the Gantry Side Support.
  • Page 78 Run the wire back though the top of the Gantry Side Support and then through the small hole, then through the second- round hole so that the wire connector is on the inside of the Gantry and through the “HS” opening in the Controller Support as shown.
  • Page 79 Step 3c Install the “Y” Home Switch beneath the Gantry Top Brace and secure with two M2.5 X16 Machine Screws and Lock Nuts.
  • Page 80 Step 4 Routing the X1 and X2 Stepper Motor Wire to the Controller Support. Step 4a Take the DuPont Connector for the X1 Stepper Motor (right side when view from the back) and run it up and through the hole in the upper Gantry Cross Brace then through the hole in the Gantry Side Assembly as shown.
  • Page 81 Continue routing the Dupont Connector and X1 Stepper Motor wires across the inside of the Gantry and through the Gantry Back Brace. After running the connector and wire though the X1 opening at the bottom of the Controller Mount. Step 4b Repeat the process to route the X2 Stepper Wires.
  • Page 82 Step 5 Install the two Upper SG20U Bearing Assemblies for the Gantry Side Frame Assembly. The assembly order for the Upper Bearing Mounts: M6 x 35 Machine Screw (H95), SG20U Bearing (H44) (with hub facing toward the Bearing Washer), (H42) Bearing Fender Washer (H42), Plywood, Bearing Fender Washer (H42) secured with a M6 Lock Nut (H18) as shown.
  • Page 83 Step 7 Attach the upper and lower SG20U Bearing Assemblies to each of the Gantry Side Assemblies. UPPER BEARINGS LOWER BEARINGS (With Eccentric Spacers)
  • Page 84 Step 8 Attach the Gantry Assembly to the X Frame Assembly. Step 8a Carefully align the Gantry Sides with the Rail Supports in the X Frame Assembly. Make sure the X1 and X2 Stepper Motor Idlers slide between the Rail Supports as shown. Notice that the Idler Bearings of the X1 Stepper Motor fit between the rail supports.
  • Page 85 Step 8b Insert the Rail into and through the upper access hole in the Frame End Support and the Rail supports so that the Upper Bearing rest on the rails. Continue inserting the Rail until it is fully nested in the rear Frame Support. Lift the Gantry Side so that the rail slides beneath both top bearings.
  • Page 86 Step 8c Insert the Rail into and through the lower access hole in the Frame End Support and across the Rail supports and the top of the lower Eccentric Bearing as shown.
  • Page 87 Step 9 Adjust the Eccentric Spacers until the Bearings are snug against the rails Rotate Clockwise Rotate Counter-Clockwise...
  • Page 88 When adjusted, the position of the right and left Eccentric Spacer should mirror each other. The Bearing should be snug against the rail. Use your finger to roll the bearing. It should not spin in place. When the bearing is properly adjusted against the rail the entire Carriage Assembly should move as you roll the bearing.

  • Page 89: Final Assembly

    Final Assembly Required Wood Components Part # Description Photo XY Rail Stop XY Belt Retainer Required Hardware Part # Description Photo Stress Proof Steel XY- Rail (24.75”) M4 x 16 Machine Screw M4 x 20 Machine Screw M4 lock Nut M4 Nut M5 x 30 Machine Screw M5 Square Nut...
  • Page 90 Idler Fender Washer Makita Router GT2 – 9mm Belt CB12 Power Supply with Cord Small Zip Tie CB16 Controller...

  • Page 91: Illustrated Step By Step Instructions

    Illustrated Step by Step Instructions Step 1 Attach the four XY Rail Stops (QR1) on the front and back Frame End Supports and secure each with two M4 x 20 Machine Screws and Lock Nuts as shown. Make sure the hole located between the Machine Screws in the Rail Stop is clearly visible...
  • Page 92 Step 2 Attaching the Y Carriage to the Gantry Assembly. Step 2a Insert the upper Rail (H53) through the Gantry Side. Rotate the Rail as it passes through Gantry Rail Supports and is fully seated in the opposite Gantry Side...
  • Page 93 Step 2b Insert the lower Rail through the Gantry side, across the Rail Supports but only partially across the Gantry. Step 2c Hang the upper Bearings of the Y Carriage on the Upper Rail. Then finish threading the lower Rail across both Lower Bearings, until it is fully seated in the opposite Gantry side.
  • Page 95 There are four XY Belt retainers (QR3) used for each of the three sets of the GT2 9mm Belt Assemblies Step 3 Attaching the GT2 9mm Drive Belts. Step 3a Cut three lengths of the GT2 9mm Belt 27 inches long. Step 3b With the teeth of the Belt facing down, thread one end of the 9mm Belt through the...
  • Page 96 Step 3c Cover the Belt with the teeth still facing down with the second Belt Retainer, as shown. Step 3d Sandwich the Belt between the two Belt Retainers and bolt them together with three M4 x 16 Machine Screws and Nuts.
  • Page 97 After installing the first Screw and Nut, it is possible to adjust the amount of Belt installed through the bottom of the clamp by gently pulling the Belt until only two or three of the teeth are visible. Then insert the remaining two M4 x 16 Machine Screws and Nuts.
  • Page 98 Step 3f Insert a M5 x 30 Machine Screw (H48) with a M5 Washer through each of the Rail Stops mounted on the front and rear Frame End Supports. Then thread a square M5 Nut (H93) on the exposed threads. Step 3g Slide the Gantry to one end of the X Frame.
  • Page 99 Step 3h Slide the Gantry past the Belt Retainer and position the Belt across the Idler Pulleys. Step 3i Attach a Belt Retainer to the Frame Support end onto the M5 square nut.
  • Page 100 Step 3j Pull the slack belt tight and notice its location behind the GT2 Pulley and the Idler Pulleys. Gently position the Belt behind the Idler Pulleys. Using a long L-end wrench or a stiff piece of wire (e.g., AWG 12 solid core copper wire), bend a small hook into one end of the wire.) slip the L-end behind the Belt and pull it between the Idler Pulleys and create a loop.
  • Page 101 Slide the loop in the Belt over the GT2 Pulley keeping tension on the Belts so they will not slip off the Idler Pulleys...
  • Page 102 Step 3k Attach a Belt Retainer to the Frame Support end onto the M5 Square Nut. Step 4 Repeat these same steps to install the X2 Belt on the other side of the Gantry.
  • Page 103 Step 5 Installing the Y Axis Belt. Step 5a Install the Y Rail Stops (QR1) and secure with two M4 x 20 Machine Screws and Lock Nuts for each side of the Gantry.
  • Page 104 Step 5b Insert a M5 x 30 Machine Screw with Washer, through the Y Rail Stop and thread a M5 Square Nut on the exposed threads. Repeat for other Gantry Side. Step 5c Slip the Belt Retainer end over the exposed thread so that the Nut is seated in the cutout in the Retainer.
  • Page 105 Step 5d Temporarily place the Belt Retainer through the large opening in the Gantry Frame as shown below. Step 5e Slide the Y Carriage past the Belt Retainer. Position the Y Carriage so that it is immediately in front of one of the large openings in the Gantry Frame.
  • Page 106 Step 5f Position the Belt so that it runs across the two Idler Pulleys Back View Front View...
  • Page 107 Step 5g Using a long Allen Wrench or a stiff piece of wire (e.g., AWG 12 solid core copper wire), bend a small hook into one end of the wire. Carefully insert the hook through the front of the Z Assembly and hook the wire over the Belt as shown.
  • Page 108 Step 5h Loop the Belt over the GT2 Pulley. Hold the Y carriage in place and pull the Belt snug. Step 5i Slip the Belt Retainer end over the exposed thread so that the Nut is seated in the cutout in the Belt Retainer and tighten the Belt to remove any slackness.
  • Page 109 Step 6 Attaching the Controller to the Controller Support. Step 6a Use four small Zip Ties to attach the Controller to the Controller Support.
  • Page 110 Step 6b Gently tighten the Zip Ties and then carefully trim the ends with a scissors. Step 7 Attaching the Power Supply.
  • Page 111 Step 7a Thread the power supply cord behind the Gantry Back Support and through the large hole in the Gantry Back Brace as shown. Step 7b Continue threading the Power Supply cord behind the Gantry Back Support and through the large hole in the Gantry Back Brace and past the Controller Support as shown.
  • Page 112 Step 7c Bundle the excess power cord and secure with a small Zip Tie. Step 7d Thread the exposed power cord end through the “PWR” hole in the Controller Support. Step 7e IMPORTANT When connecting the Power Supply to the Controller, make sure the red wire is connected to the (+) positive terminal and the...
  • Page 113 Step 7f Secure the power cord wire to the Controller Support with a small Zip Tie. Step 7g Plug the power cord into the Power Supply. Step 8 Installing the Makita Router. Step 8a Slip the Makita Router into the Router Mount.
  • Page 114 Step 8b Snug Router in place by tightening the Router Mount Clamp. Then tighten the two M4 x 35 Screws and Locknuts at the front of the Router Clamp...
  • Page 115 Step 9 Wire Management. WARNING In order to reduce electrical noise which can interfere with the proper operation of the Stepper Motors and Controller it is required that all the wiring and securing of loose wires be performed as illustrated in the manual. Failure to do so may result in poor machine performance.
  • Page 116 Step 9b Secure the Router cord and the Y Home Switch, Y Stepper Motor and Z Stepper Motor wires across the Carriage Top Support. Step 9c Continue bundling the Stepper Motor and Home Switch wires together with small Zip ties spaced 4 to 5 inches apart...
  • Page 117 Bundle enough wire so that when the harness is attached to the Controller Mount, the Y Carriage can travel back and forth across the Gantry without pulling on the wires Secure the wires to the Controller Mount with a Zip Tie to the “YZ HS”...
  • Page 118 Step 9d Route the Router cord through the Gantry Back Brace and Gantry Side as shown. Step 9e Secure the Router cord at the two elongated holes in the top of the Gantry Top Brace located just to the left of the Controller.
  • Page 119 Leave enough cord to allow the Y Carriage to travel back and forth across the Gantry without pulling on the Router cord and so that it will not interfere with the Stepper and Home Switch wires.
  • Page 120 Step 10 Connecting the Home Switches to the Controller. IMPORTANT. The Controller is mounted so that the PIN Designations are upside down. It is very important to be certain the Dupont Connectors at the ende of the wires cover the proper pins on the controller.
  • Page 121 Step 10a Connect the Z Home Switch to the Z+ plug on the Controller. Step 10b Connect the X2 Home Switch to the Z- plug on the Controller. Step 10c Connect the Y Home Switch to the Y- plug on the Controller.
  • Page 122 Step 10d Connect the X1 Home Switch to the X- plug on the Controller Side View of Home Switch Connections...
  • Page 123 Step 11 Connecting the Stepper Motors to the Controller. Step 11a Connect the X1 Stepper Motor to the pins of the “X” driver on the Controller. Make sure the blue wire is at the top. Step 11b Connect the X2 Stepper Motor to the pins of the “A”...
  • Page 124 Step 11c Connect the Z Stepper Motor to the pins of the “Z” driver on the Controller. Make sure the blue wire is at the top. Step 11d Connect the Y Stepper Motor to the pins of the “Y” driver on the Controller.
  • Page 125 View of wire routing...

  • Page 126: T-Slot Spoilboard

    T-Slot Spoilboard Wood Components Part # Description Photo QSB24 MDF Section Required Hardware Part # Description Photo M4 X 16 Machine Screws M4 Nut SBT24 Aluminum T-slot Illustrated Step by Step Instructions...
  • Page 127 Step 1 Attaching the Spoilboard to the X Frame Assembly. The MDF Sections will overhang the front and back end supports ⅛ inch. The Aluminum T-Slots will fit flush to the front and back end supports Step 1a Cover the T-slots with blue painter’s tape to hold the M4 Nuts in place during the installation process.
  • Page 128 Step 2 Lay the first MDF Section against the left side of the X Frame Assembly as shown. Make sure the countersunk openings are facing up. Align the holes with the installed M4 nuts beneath. The Machine Screws that hold the Sections will be installed later. Step 3 Lift the MDF Section and set the flange of the Aluminum...
  • Page 129 Step 4 Repeat to install the remaining Sections and Aluminum T-slot extrusions.
  • Page 130 Step 5 Snug the thirty-six M4 x 16 Machine Screws into the M4 Nuts but do not fully tighten them. Measure the Spoilboard diagonally from corner. When both measurements match, the spoilboard is square and the Machine Screws can be securely tightened.

  • Page 131: Completed Views

    Completed Views...

  • Page 133: Tramming

    Tramming Tramming is the process of adjusting a CNC Spindle (Router) so it is perpendicular to the spoilboard. The simplest method to do this is to use a square as shown. If the Spindle is not perpendicular, the Evolution Series CNC Routers can be trammed on the X axis by adjusting the four Eccentric Spacers on the Z Carriage.
  • Page 134 The Spindle (Router) can be trammed on the Y axis by placing shims behind the SG20U Bearing Fender Washer on the upper or lower Y Assembly. Placing the shim on the top will tilt the axis clockwise. Placing the shim on the bottom will tilt the axis counterclockwise.

  • Page 135: Clamping System

    Description Photo 1/4- 20, 2” Screws, Wingnuts, and T-Nuts BobsCNC supplies wooden clamps that are secured to the spoilboard in conjunction with ¼ x 20 2” Screws and Wingnuts (H9). The T-Nuts slide into the aluminum T-Slots and can be tightened within the slot.

  • Page 136: Congratulations! You Just Completed The Assembly Of Your Bobscnc Quantum Cnc Router, Mini

    Congratulations! You Just Completed the Assembly of Your BobsCNC Quantum CNC Router, Mini. Please use the link where to download our Basic CAM and Basic SENDER Basic Software Suite...

  • Page 137: Appendix

    Appendix Firmware Values Value Description 10 (step pulse, usec) 25 (step idle delay, msec) 0 (step port invert mask:00000000) 0 (dir port invert mask:00000000) 0 (step enable invert, bool) 0 (limit pins invert, bool) 0 (probe pin invert, bool) 1 (status report mask:00000011) 0.01 (junction deviation, mm) 0.002 (arc tolerance, mm) 0 (report inches, bool)

  • Page 138: Quantum Washer Size Table

    $110 10000 (x max rate, mm/min) $111 10000 (y max rate, mm/min) $112 2000 (z max rate, mm/min) $120 500 (X-axis acceleration, mm/sec^2) $121 500 (Y-axis acceleration, mm/sec^2) $122 500 (Z-axis acceleration, mm/sec^2) $130 407 (X-axis maximum travel, millimeters) $131 407 (Y-axis maximum travel, millimeters) $132 98 (Z-axis maximum travel, millimeters)

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