Page 1 Assembly Manual Rev 3.10...
Page 2 Welcome to the Family. We’re excited that you purchased the Quantum Max 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 Max CNC Router and provides all the information you need to get your machine up and running.
Page 3: Table Of Contents
Safety Precautions and Warnings ......................6 Getting Started ..............................7 Required Tools 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 ............................... 170 Clamping System ............................172 Wood Components (Included with Kit)..................172 Required Hardware ..........................172 Congratulations! You Just Completed the Assembly of Your BobsCNC Quantum CNC Router................................173 Appendix ................................ 174 Firmware Values ............................174 Quantum Washer Size Table ......................175...
Page 5 BobsCNC Quantum Specifications Feature list The assembled footprint: Length: 63" (1600 mm) Width: 40" (1016 mm) Height: 22” (560 mm) Assembled Weight: 50 lbs. Cutting Area: 50.5" (1283 mm) 24" (610 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
Clear Nail Polish or Blue LOCTITE 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 inch Shaft Router bits. A 1/8 inch Collet must be purchased to use 1/8 inch Shaft Router bits.
Page 9: Assembly Recommendations
Assembly Recommendations: Use a large, flat, clean work surface for assembling your Quantum Max. All Screws (unless noted) should be installed snug, then rotated 1-2 ½ turns. Apply LOCTITE 242™ or clear fingernail polish to all M4 X 16 mm Machine Screws 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 Machine Screw M3 Washer...
Page 11: Illustrated Step By Step Instructions
CB11 Stepper Motor 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 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 six Idler Bearing Assemblies using one M5 x 30 Machine Screw (H48), two Flanged Bearings (H86), two Small Black Washers (H89) and two Idler Fender Washers (H50) in the sequence shown below.
Page 14 Repeat to install the remaining 2 Idler Assemblies. Step 2c Align the mounting holes of the Stepper Motor with holes in the Stepper Motor Assemblies.
Page 15 Secure the Stepper Motor to the XY Stepper Motor mount with four M3 x 10 Machine Screws (H37) with M3 Washer(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 Idler Bearing and run upward.
Page 16 NOTE: When correctly installed, the flanges of the Idler Bearings will frame the teeth of the GT2 Drive Pulley (see below). GT2 Drive Pulley Flange Bearings...
Page 17: Quantum Max X-Frame Assembly
Quantum MAX X-Frame Assembly Required Wood Components Part # Description Photo Rail Support Torsion Arm EQX2 Extension Torsion Inner Frame Mid Support Outer Frame Mid Support EQX4 Extension Frame Mid Support Frame Side Support EQX5 Extension Frame Side Support...
Page 18 Frame End Support Wire Harness Support Frame Corner Support EQX8 Extension Frame Corner Support Torsion Plate QX10 Frame Side Brace EQX10 Extension Frame Side Brace QX11 Belt Support EQX12 Extension Coupling Plates...
Page 19: Required Hardware
Torsion Arms are located at the rear of the Assembly. Illustrated Step by Step Instructions The Quantum Max X Frame consists of two components, the Front X Frame Assembly and the Rear X Frame Assembly. The following steps will cover building the Rear X Frame Assembly.
Page 20 Step 1 Use strips of painter’s tape to cover all the T-Slot cutouts in each of the four Torsion Arms (QX2) and Torsion Plates (QX9) as shown.
Page 21 Step 2 Turn the Torsion Arms over and install a M4 Nut (H15) in each of the T-Slots as shown below. Cover the installed M4 Nuts with strips of painter’s tape. This will create a pocket to hold each of the M4 nuts in place to make it easier to connect the Torsion Arms (QX2) to the Torsion Plate (QX9).
Page 22 Step 3 Align the tab of the Torsion arm (QX2) with the corresponding slot in the Torsion Plate (QX9). Notice how the rectangular notch is oriented. Make sure the cutout in each of the torsion arms is oriented in the same way in the Assembly. Rectangular Notch Step 4 Secure the Torsion Arm to the Torsion Plate using...
Page 23 Repeat to install all four QX2 Torsion Arms. Step 5 Carefully turn the Assembly over and align the slots in the Torsion Plate with the tabs on the Torsion Arms. Secure with eight M4 x 16 Machine Screws.
Page 24 Step 6 This step will cover attaching 4 Frame Corner Supports (QX8), the two Wire Harness Supports (QX7), the two Inner Frame Mid Supports (QX3) and the two Outer Frame Mid Supports (QX4). Parts shown below.
Page 25 Step 6a Make sure the open T-Slots on the inner sides of the Torsion Plates are covered with strips of painter’s tape, this will create pockets to hold the four M4 x16 Nuts inserted, as shown. Step 6b Align the large slots of the Inner Frame Mid Supports (QX3) with those of the X-Frame Assembly.
Page 26 Align the slots in the Inner Mid Frame Support (QX3) with the tabs of both Torsion Plates. When the tabs are fully seated, secure with four M4 Machine Screws and Nuts in each Plate. Repeat to attach the top and bottom of the second Inner Mid Frame Support.
Page 27 Step 6c Insert the tabs of the Wire Harness Support (QX7) into the slots at the end of the Inner Frame Mid Supports and secure with two M4 x 16 Machine Screws and Nuts for each. Both Wiring Harness Supports attached.
Page 28 Step 6d Align the slots of the Outer Frame Mid Support (QX4) into the slots at the end of the Torsion Arm Assembly and slide into place as shown. BACK SIDE SIDE FRONT In the photo above, note the orientation of the components in the Rear X-Frame Assembly.
Page 29 Torsion Arms (QX2). Note the circular cutout in the Frame Corner Support can only be installed facing toward the front or back of the X Frame Assembly. In the Quantum Max, it is oriented to rear. Step 7a Align the slots in the Frame Corner Supports (QX8) with the tabs on the Torsion Arms (QX2).
Page 30 Step 7b Turn the Assembly over and attach the two remaining Frame Corner Supports (QX8) using M4 X 16 Machine Screws After the four Corner Supports are attached, use painter’s tape to cover the T-Slots on the inside surface of the corner supports as shown.
Page 31 Step 8 Attaching the (QX1) Rail Supports to the (QX5) Frame Side Support. FRONT...
Page 32 Step 8a Insert the tabs of the ten Rail Supports (QX1) into the corresponding slots of the Frame Side Supports (QX5) as shown and secure each with two M4 x 16 Machine Screws and Nuts. Step 8b Align the tabs on the X Frame Assembly and the slots of the Frame Side Assembly as shown and secure with four M4 X 16 Machine Screws and Nuts.
Page 33 Step 9 Attach two Extension Frame Corner Supports (EQX8) on the Torsion Arms (QX2). Note the notch in the Corner Support must be oriented toward the front and the center of the Assembly. Step 9a Align the slots in the Frame Corner Supports (QX8) with the tabs on the Torsion Arms (QX2).
Page 34 Fit the tabs of the Fame Corner Supports (QX8) into the slots of the Side Assembly and secure with four M4 x 16 Machine Screws and Nuts. Turn the Assembly over to insert the Screws and Nuts on the Bottom Frame Corner Supports (QX8).
Page 35 Step 10a Align the tabs of two of the Belt Supports (QX11) in slots located at Rear of the X Assembly and secure two M4 X 16Machine Screws and Nuts for each, as shown. Step 10b Align the slots of the Frame Side Brace (QX10) with the slots in the Side Assembly.
Page 36 Step 10c Align the tabs and slots of the Frame End Support (QX6) with the tabs and slots of the Side Assembly and secure with eight M4 X 16 Machine Screws and Nuts for each side. Back View...
Page 37 Front View Side View The following steps will cover building the Front X Frame Assembly.
Page 38 Step 1 Use strips of painter’s tape to cover all the T-Slot cutouts in each of the four Torsion Arms (QX2 and, EQX2) and Torsion Plates (QX9) as shown. Step 2 Turn the Torsion Arms over and install a M4 Nut in each of the T-Slots as shown below.
Page 39 This will create pockets to hold the M4 nuts in place making it easier to connect the Torsion Arms (QX2 and EQX2) to the Torsion Plate (QX9). Step 3 Align the tab of the Torsion arm (QX2) with the corresponding slot in the Torsion Plate (QX9). Notice how the rectangular notch is oriented.
Page 40 Step 5 Repeat to secure the Extension Torsion Arm (EQX2) to the Torsion Plate using two M4 x 16 Machine Screws each. Step 6 Carefully turn the Assembly over and align the slots in the Torsion Plate with the tabs on the Torsion Arms.
Page 41 The taped side will be turned over before securing with eight M4 x 16 Machine Screws as shown below.
Page 42 Step 7 Installing the Inner Frame Mid Supports (QX3), Outer Frame Mid Support (QX4), Wire Harness Support (QX7), Frame Corner Supports (QX8), Extension Frame Corner Supports (EQX8), and Extension Coupling Plates (EQX12). Step 7a Cover the T-Slots on the inner sides of the Torsion Plates with strips of painter’s tape to hold the four M4 x16 Nuts inserted, as shown.
Page 43 Step 7b Align the large slots of the Inner Frame Mid Supports (QX3) with those of the X-Frame Assembly. Carefully lower the Inner Frame Mid Support into place as shown. Align the slots in the Inner Frame Mid Support (QX3) with the tabs of both Torsion Plates. When the tabs are fully seated, secure with four M4 X 16 Machine Screws and Nuts in each Plate.
Page 44 Repeat to attach the top and bottom second Inner Frame Mid Support.
Page 45 Step 7c Insert the tabs of the Wire Harness Support (QX7) into the slots at the end of the Inner Frame Mid Supports and secure with two M4 x 16 Machine Screws and Nuts for each. Both Wiring Harness Supports attached.
Page 46 Step 7d Align the slots of the Outer Frame Mid Support (QX4) into the slots at the end of the Slots of the Torsion Arm (long) Assembly and slide into place as shown. Step 7e Install four Frame Corner Supports (QX8) and secure with two M4 x 16 Machine Screws each, closest to Outer Frame Mid Support (QX4) as shown.
Page 47 Step 7f Install blue painter’s tape on both sides of the Frame Corner Support (QX8 ) upper and lower sides as shown. Step 8 Attaching the Front and Rear Assemblies...
Page 48 Step 8a Position the Front Assembly to the Rear Assembly, secure with two M4 x 16 Machine Screws to each side as shown. Step 8b Gently, flip entire X-Frame Assembly over and install the remaining two Extension Frame Corner Supports (EQX8) to the X-Frame Assembly, as shown and secure with six M4 x 16 Screws and Nuts.
Page 49 Step 8c Position both Extension Coupling Plates (EQX12) and onto the Extension Frame Mid Support (EQX4), as shown. Step 9 Gently, flip the entire X-Frame Assembly back over. Gently and evenly slide the Extension Coupling Assembly onto the X-Frame Assembly. Adjust so that all the tabs are inserted into the slots, as shown.
Page 50 Step 9a Secure the Extension Frame Assembly to the X-Frame Assembly with four M4 x 16 Machine Screws and Nuts on each side, as shown.
Page 51 Step 10 Attaching the (QX1) Rail Supports to the (QX5) Frame Side Support. Step 10a Insert the tabs of the eight Rail Supports (QX1) into the corresponding slots of the Extension Frame Side Supports (EQX5) as shown and secure each with two M4 x 16 Machine Screws and Nuts.
Page 52 Step 11 Attach the Side Frame Assemblies to the X-Frame Assembly as shown. Step 11a Position the tabs of the Frame Corner Support to the X-Frame Assembly, as shown.
Page 53 Step 11b Secure each side with seven M4 x 16 Machine Screws and Nuts, as shown. Step 12 Install the Extension Frame Side Brace (EQX10) on each side of the X-Frame Assembly, using five M4 x 16 Machine Screws and Nuts on each side, as shown.
Page 54 Step 13 Secure the Extension Coupling Plates (EQX12) with eight M4 X 16 Machine Screws and Locknuts each as shown. Inside view. Outside view.
Page 55 Step 14 Install the Belt Supports (QX11) at the Front of the joined Assembly with two M4 x 16 Machine Screws and Nuts each as shown. Step 15 Align the tabs and slots of the Frame End Support (QX6) with the tabs and slots of the Side Assembly and secure with eight M4 X 16 Machine Screws and Nuts for each side.
Page 56 Completed X-Frame Assembly...
Page 57: 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 58: Required Hardware
Required Hardware Part Description Photo M6 x 35 Machine Screws M6 Locknuts Eccentric Spacer Eccentric Washer Bearing Fender Washer SG20U Bearing ZD12 ACME Nut Assembly M5 X18 Machine Screw M5 Lock Nut M4 x 16 Machine Screw M4 Nut M5 x 30 Machine Screw M5 Square Nut...
Page 59: Illustrated Step By Step Instructions
Idler Fender Washer M4 x 35 Machine Screw M4 lock Nut Illustrated Step by Step Instructions Step 1 Building the SG20U Bearing Assemblies. NOTE: the Bearing Assembly Order: M6 x 35 Machine Screw (H95), SG20U Bearing(H44) with hub facing toward the Bearing Fender Washer, then the Bearing Fender Washer (H42), Eccentric Washer (H41), Eccentric Spacer (H40), M6 Locknut (H18).
Page 60 When inserting the Bearing Assembly through the Back Frame (QZ1), make sure the Hub of the SG20U Bearing faces the Bearing Fender Washer which is pressed against the wood. Step 1a Insert the four 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...
Page 61 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 shown. Secure the Bearing Assembly in place with an M6 Lock Nut (H18) on each of the four Assemblies.
Page 62 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). Step 2b Place the Screw, Nut and Washer Assembly into the Inner Spindle Mount (QZ5).
Page 63 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 64 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.
Page 65 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. Step 2g Align the tabs of the stack with the slots in the Back Frame Assembly and secure with four M4 x16 Machine Screws and Nuts.
Page 66 Step 2h Align the tabs of the Top Spindle Mount (QZ4) with the slots in the Back Frame Assembly and secure with two M4 x 16 Machine Screws and Nuts as shown.
Page 67 Step 2i Align the tabs of the Top Brace (QZ3) with the slots in the Back Frame Assembly and secure with two M4 x 16 Machine Screws and Nuts as shown. 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.
Page 68 Step 2k Prepare the ACME Nut Assembly (ZD12) by inserting two M5 Lock Nuts (H49) in the ACME Block. Note: Make sure the nylon washer on the top of the Lock Nut is visible after inserting as shown. 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...
Page 69 NOTE: The slot in the ACME Nut must be oriented on the bottom as shown. Left Side Right Side...
Page 70: 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 Carriage Bottom Support...
Page 71: Required Hardware
Outer Rail Support Required Hardware Part # Description 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 72 CB11 Stepper Motor M3 x 10 Machine Screw M3 washer Aluminum Helical Coupler 626-2RS Bearing 6mm Split Locking Collar ACME Screw Small Shim Washer M4 Nut M4 x 16 Machine Screw Stress Proof Steel Z-Rail...
Page 73: Illustrated Step By Step Instructions
Home CB19 Switch M2.5 x 16 Machine Screw M2.5 Lock Illustrated Step by Step Instructions...
Page 74 Step 1 Installing the Upper and Lower Bearings Mounting Holes for Upper Bearings Step 1a Holes for Lower Mounting 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 Fender Washer, then the Bearing Fender Washer (H42), Plywood, Bearing Fender Washer...
Page 75 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, Bearing Fender Washer (H42), Plywood, Eccentric Washer (H41), Eccentric Spacer (H40) secured with a M6 Lock Nut (H18).
Page 76 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 Y Carriage Assembly and secure with two M4 x 16 Machine Screws and Nuts.
Page 77 Step 2c Align the tabs of the remaining Outer Rail Support (QY8) with the next set of slots above in the Y Carriage 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 Y Carriage Assembly as shown.
Page 78 Step 2e Carefully thread the Dupont Connector and the Stepper Motor wires of the Y Stepper Motor Assembly through the upper Outer Rail Support middle hole. Continue threading the wires through the rectangular hole just beneath the Carriage Top Support.
Page 79 Step 2f With most of the wire threaded through the Y Carriage Assembly, align the tabs of the Y 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 with eight M4 x 16 Machine Screws and Nuts.
Page 80 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 M4 Lock Nuts (H47). Step 3 Attaching the Z Frame Assembly to the Y Carriage Frame Assembly This closeup view shows the Locknut tightened against the...
Page 81 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. IMPORTANT Make sure the points on the wide edge of the Eccentric Spacers of the upper bearings pointing down and the wide point of...
Page 82 Step 3b Carefully set the Z Carriage Frame onto the Y Carriage Assembly as shown.
Page 83 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 84 Step 4 Installing the Acme Screw. Step 4a Thread the Acme Screw Assembly through the hole located at the front of the Carriage Top Support (QY2) and into the Acme Nut. Rotate the Acme Screw Assembly through the Acme Nut until the bearing touches the Carriage Top Support.
Page 85 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 86 The Bearing Retainer Washers overlap 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 87 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 88 Step 6b Route the Z Stepper Motor wire through the small hole at the back of the Z Stepper Motor 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 89 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 Aluminum Helical Coupler as shown.
Page 90 Step 6d Carefully slide the Stepper Motor Shaft into the Aluminum 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 Aluminum Helical Coupler against the...
Page 91: Gantry Assembly
Gantry Assembly Required Wood Components Part # Description Qty Photo Gantry Frame Gantry Side Support Gantry Cross brace Y Rail Support Controller Mount Gantry Back Brace Gantry Back Support Gantry Top/Bottom Brace...
Page 92: Required Hardware
Gantry Side 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...
Page 93: Illustrated Step By Step Instructions
CB19 Home Switch M2.5 x 16 Machine Screw M2.5 Lock Nut Stress Proof Steel XY-Rail (58.75”) Illustrated Step by Step Instructions...
Page 94 Step 1 Building the Gantry Side Assemblies. NOTE: The two Side Assemblies will mirror each other when completed. Prior to the assembly process, orient the parts of the side you are building as shown.
Page 95 Step 1a Layout two Gantry Side Supports (QG2) and a completed Stepper Motor Mount Assembly. Be sure that with the Idler Bearings resting on the table (as shown below), ensure the Stepper Motor Wires are oriented in the correct direction as shown in the photo below. Install two M4 Nuts and use small pieces of tape to cover the T-slots on the bottom of the Stepper Motor Mount to retain the Nuts.
Page 96 Step 1b Align the tab of the Stepper Motor Mount Assembly with the slot in the Gantry Side. Support and secure with one M4 x 16 Machine Screw. Repeat to install the other Gantry Side Support. Remove the tape after tightening.
Page 97 Step 1c Align the tabs of the Gantry Lower Side Brace (QG10) and slide them into the slots in the Assembly as shown. Secure with two M4 x 16 Machine Screws and Nuts.
Page 98 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 99 Step 1e Align the slots of the two Gantry Cross Braces (QG3) with the slots in the Gantry Side 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 100 When completed Assembly are a mirrored copy of the other. It is essential that the Stepper Motor wires are oriented as shown above.
Page 101 Step 2 Building the Gantry Back Assembly. NOTE: The two small rectangular cutouts in the Gantry Frame (QG1) indicate the top of the Gantry Frame.
Page 102 Step 2a Attach the seven Y Rail Supports (QG4) to the Gantry Frame (QG1) and secure each with two M4 x 16 Machine Screws and Nuts as shown below.
Page 103 Step 2b Align the tabs and slots of the Gantry Bottom Brace (QG8) with the Gantry Assembly. Secure with fifteen M4 x 16 Machine Screws and Nuts.
Page 104 Step 2c Insert the tabs of the two Gantry Back Supports (QG7) into the slots in the Gantry Assembly as shown below. Secure each with two M4 x 16 Machine Screws and Nuts. Step 2d Insert the tabs of the Controller Mount (QG5) into the slots in the Gantry Assembly as shown below and secure in place with two M4 x 16 Machine Screws and Nuts...
Page 105 Step 2e Align the tabs of the Gantry Assembly with the slots in the Gantry Top (QG8). Carefully fit the top in place and secure with twenty-one M4 x 16 Machine Screws and Nuts as shown. Step 2f Align and insert the tabs of the two Gantry Back Braces (QG6) into the slots of the Gantry Assembly and secure each with three M4 x 16 Machine Screws and Nuts as shown.
Page 106 Step 2g Align and fit the tabs of the Gantry Assembly into the slots of the left Gantry Side Assembly and secure with seven M4 x16 Machine Screws and Nuts...
Page 107 Step 2h Align and fit the tabs of the Gantry Assembly into the slots of the right Gantry Side Assembly and secure with seven M4 x 16 Machine Screws and Nuts. (Completed Assembly below). Step 3 Attaching the X1, X2, and Y Home Switches. Step 3a Take the three (CB19) Home Switches and label the DuPont Connectors “X1”, “X2”...
Page 108 With the Gantry Assembly laying, as shown, attach the X1 Home Switch. Secure in place 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.
Page 109 Route the X1 Home Switch wire from the mounting position up and through the hole in the Gantry Side Assembly, across the Gantry Assembly, and through the Controller Mount as shown. Secure with a Zip Tie. Trim excess material after securing. Route the Home Switch Wire across the Gantry Assembly and through the Controller Mount as shown.
Page 110 Follow the same procedure to install X2 Home Switch on the opposite side, as shown below. Step 3b The “Y” Home Switch is located on the top left front side of the Gantry Assembly as shown.
Page 111 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 Gantry Side Assembly and through the (QG2) Gantry Side Support. 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 Assembly and...
Page 112 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 113 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 viewed from the back) and run it up and through the three holes in the Gantry Side Assembly as shown.
Page 114 Route theX1 Stepper Motor wire across the inside of the Gantry Assembly and through the Gantry Back Brace. After running the connector and wire though the X1 opening at the bottom of the Controller Mount use a small zip tie and secure the wire to the Gantry Back Support as shown.
Page 115 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 Fender Washer), Bearing Fender Washer (H42), Plywood, Bearing Fender Washer (H42) secured with a M6 Lock Nut (H18) as shown.
Page 116 Step 7 Attaching the Gantry Assembly to the X Frame Assembly. Notice the cutouts in the X Frame Side Supports. Step 7a Carefully align the Gantry Sides with the cutouts in the X Frame Assembly and lower the Gantry Assembly until it rests on the X Frame Assembly.
Page 117 Notice that the Idler Bearings of the X1 Stepper Motor fit between the rail supports. Step 7a Insert the Gantry Frame Assembly onto the X Frame Assembly.
Page 118 Step 7b Insert the Rails (H99) into and through the upper holes in the X Frame End and supports, as shown. Lift the Gantry Assembly so that the rail slides beneath both top Bearings. Insert the Rail completely, so that the ends of the Rail are seated flush in the Front and Back End Supports.
Page 119 Step 8 Inserting the Lower Eccentric Bearing Assemblies into the Gantry Sides. Step 8a Install the two lower SG20U Bearings for the Gantry 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, Bearing Fender Washer (H42), Plywood, Eccentric Washer (H41), Eccentric Spacer (H40)
Page 120 Step 8b Slide the Eccentric Washer and Eccentric Spacer on the Machine Screw and secure with a M6 Lock Nut. Insert a Phillips screwdriver through the access hole in the bottom of the Frame Support and using a 10mm socket, snug the Locknut firmly against the face of the Eccentric Spacer and repeat to install all four Eccentric...
Page 121 Step 9 Adjust the Eccentric Spacers until the SG20U Bearings are snug against the Rails. Rotate Clockwise Rotate Counter-Clockwise When adjusted, the position of the right and left Eccentric Spacers should mirror each other. The SG20U Bearings should be snug against the Rail. Use your finger to roll the Bearing.
Page 122 When the SG20 Bearings are properly adjusted against the Rail, the entire Gantry Assembly should move as you roll the Bearing. Make sure the Gantry Assembly rides smoothly along the full length of the Rails. Make adjustments as required.
Page 123: 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 (XX”) M4 x 16 Machine Screw M4 x 20 Machine Screw M4 lock Nut M4 Nut M5 x 30 Machine Screw M5 Square Nut...
Page 124 Idler Fender Washer Makita Router GT2 – 9mm Belt CB12 Power Supply with Cord Small Zip Tie CB16 Controller...
Page 125: Illustrated Step By Step Instructions
Illustrated Step by Step Instructions Step 1 Attach four X 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 126 Step 2 Attaching the Y Carriage to the Gantry Assembly. Step 2a Insert the upper Rail through the Gantry Side Assembly. Rotate the Rail as it passes through Gantry Rail Supports and is fully seated in the opposite Gantry Side Assembly. Step 2b Insert the lower Rail through the Gantry Side Assembly, across the Rail Supports but only...
Page 128 Step 2c Adjust the Eccentric Spacers until the SG20U Bearings are snug against the rails Rotate Clockwise Rotate Counter-Clockwise...
Page 129 The SG20U 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 Y Carriage Assembly should move as you roll the bearing.
Page 130 There are four (QR3) XY Belt retainers used for each of the 3 sets of the GT2 9mm Belt Assemblies. Step 3 Attaching the GT2 9mm Belts. Step 3a Cut two lengths of the GT2 9mm Belt 60 inches long for the X axis and one to 34 inches for the Y axis.
Page 131 Step 3c Cover the Belt with the teeth still facing down with the second Belt Retainer. Step 3d Sandwich the GT2 Belt between the two Belt Retainers and bolt them together with three M4 x 16 Machine Screws and Nuts. After installing the first Screw and Nut, it is possible to adjust the amount of GT2 belt installed through the bottom of the clamp by...
Page 132 When properly installed and tight, there shouldn’t be a visible gap between the two Belt Retainers. Step 3e Stretch the Belt Assembly out and measure the distance between the two notched ends in the Belt Retainers. The distance should be 57¼...
Page 133 Step 3f Insert a M5 x 30 Machine Screw (H48) with a Idler Fender Washer (H50) through the Rail Stop mounted on the front Frame End Support. Then thread a M5 Square Nut (H93) on the exposed threads. Repeat for the rear Frame End Support.
Page 134 Step 3h Tuck the other Belt Retainer Assembly between two Rail Supports as shown. Hold the GT2 Belt in the notch in the Rail Support and slide the Gantry Assembly past the Belt Retainer Assembly. Step 3i Pull the slack GT2 belt tight and notice its location behind the GT2 Pulley and the Idler Pulleys.
Page 135 Slide the loop in the GT2 Belt over the GT2 Pulley, keeping tension on the belts so they do not slip off the Idler Pulleys. Step 3j Slip a Belt Retainer Assembly end over the exposed thread so that the Square Nut is seated in the cutout of the Belt Retainer Assembly on the opposite side as shown.
Page 136 Step 4 Repeat these same steps to install the X2 GT2 Belt on the opposite side. Step 5 Installing the Y Axis GT2 Belt. Step 5a Install the Rail Stops (QR1) and secure with two M4 x 20 Machine Screws and Locknuts for each side of the Gantry Assembly.
Page 137 Step 5b Insert a M5 x 30 Machine Screw with Idler Fender Washer (H50), through the Rail Stop and thread a M5 Square Nut on the exposed threads. Repeat for other Gantry Side Assembly. Step 5c Slip the Belt Retainer Assembly end over the exposed thread so that the Square Nut is seated in the cutout in the Belt Retainer Assembly.
Page 138 Step 5d Temporarily place the Belt Retainer Assembly through the large opening in the Gantry Assembly as shown.
Page 139 Step 5e Slide the Y Carriage Assembly past the Belt Retainer Assembly. Position the Y Carriage Assembly so that it is immediately in front of one of the large openings in the Gantry Frame. Align the rectangular opening in the Z Frame Assembly with the opening in the Gantry Frame by manually turning the Helical Coupler at the top of the Y Carriage Assembly...
Page 140 Step 5f Position the GT2 Belt so that it run across the two Idler Pulleys. Back View Front View...
Page 141 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 Frame Assembly and hook the wire over the GT2 Belt as shown.
Page 142 Step 5h Loop the GT2 Belt over the GT2 Pulley. Hold the Y Carriage Assembly in place and pull the GT2 Belt snug. Step 5i Slip the Belt Retainer Assembly end over the exposed thread so that the Square Nut is seated in the cutout in the Belt Retainer Assembly and tighten the GT2 Belt to remove any slack.
Page 143 Step 6 Attaching the Controller to the Controller Support. Step 6a Use four small Zip Ties to attach the Controller (CB16) to the Controller Support.
Page 144 Step 6b Gently tighten the Small Zip Ties and then carefully trim the ends with scissors. Step 7 Attaching the Power Supply.
Page 145 Step 7a Thread the Power Supply cord behind the Gantry Back Support and through the large hole in the Gantry Back Brace as shown.
Page 146 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. Step 7c Bundle the excess power cord and secure with a small Zip Tie.
Page 147 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 black wire is connected to the (-) terminal.
Page 148 Step 7g Plug the Power cord into the Power supply. Step 8 Installing the Makita Router. Step 8a Slip the Makita Router (R2) into the Router Mount.
Page 149 Step 8b Snug the Makita Router in place by tightening the Router Mount Clamp. Then tighten the two M4 x 35 Screws (H85) and Locknuts at the front of the Router Clamp...
Page 150 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.
Page 151 Step 9b Secure the Makita Router cord, the Y Home Switch, Y Stepper Motor and Z Stepper Motor wires across the bottom of the Carriage Top Support, as shown. Step 9c Continue bundling the Stepper Motor and Home Switch wires together with small zip ties spaced 4 to 5 inches apart.
Page 152 Bundle enough wire so that when the wires are attached to the Controller Mount, the Y Carriage Assembly can travel back and forth across the Gantry Assembly without pulling on the wires. Secure the wires to the Controller. Mount with a Zip Tie to the “YZ HS” mounting holes.
Page 153 Step 9e Holding the Makita Router cord at underside of the two elongated holes in the top of the Gantry Top Brace located just to the left of the Controller, measure enough cord to allow the Y Carriage Assembly to travel back and forth across the Gantry Assembly without pulling on the Router cord.
Page 154 Step 9f Secure the Makita Router Cord to the Gantry Top Brace with two mall Zip Ties as shown.
Page 155 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 end of the wires cover the proper pins on the controller.
Page 156 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 157 Step 10d Connect the X1 Home Switch to the X- plug on the Controller Side View of Home Switch Connections...
Page 158 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 159 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 160: Wire Harness
Wire Harness Wood Components Part # Description Photo EQX7 Extension Wire Harness Required Hardware Part # Description Photo M4 X 16 Machine Screws M4 Nut Extension Cord 60” USB Cable Illustrated Step by Step Instructions...
Page 161 Step 1 Secure each of the Extension Wire Harness (EQX7) using four of the M4 X 16 Machine Screws and Nuts Step 2 Place the large female end of the Extension Cord and Zip tie it to the side of the Gantry Frame Assembly. Plug in the Makita and Power Supply to the Extension Cord...
Page 162 Step 3 Attach the Extension Cord to the Extension Wire Harness with four Zip Ties so that the Extension Cord has plenty of slack when the Gantry is at each end of its travel range. Step 4 Attach the USB Cable to the Controller and route it, as shown.
Page 163 Step 5 Zip Tie the USB Cable to the Side Gantry as shown. Step 6 Attach the USB Cable to the Extension Wire Harness so that the USB Cable has plenty of slack when the Gantry is at each end of its travel range.
Page 164: T-Slot Spoilboard
T-Slot Spoilboard Wood Components Part # Description Photo QSB59 MDF Section Required Hardware Part # Description Photo M4 X 16 Machine Screws M4 Nut SBT58 Aluminum T-slot Illustrated Step by Step Instructions...
Page 165 Step 1 Attaching the Spoilboard to the Torsion Box 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 of the end supports. Step 1a Fill the T-slots with sixty M4 Nuts.
Page 166 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. Install the Machine Screws to hold each Section in place but do not tighten them at this time.
Page 167 Step 4 Repeat to install the remaining Sections and Aluminum T-slot extrusions.
Page 168 Step 5 Snug the sixty 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 169: Completed Views
Completed Views...
Page 171: 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 172 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 173: Clamping System
Photo 1/4- 20, 2” 8 ea. Screws, Wingnuts, T-Nuts The BobsCNC supplies wooden clamps that are secured to the aluminum T-Slots using ¼ X 20 Machine Screws in conjunction with T-Nuts and Wingnuts. The T-Nuts slide into the aluminum T-Slots and can be tighten within the slot.
Page 174: Congratulations! You Just Completed The Assembly Of Your Bobscnc Quantum Cnc Router
Basic SENDER Basic Software Suite Note: Once connected to Basic SENDER you will need to go to the Firmware Flashing Tool in the Tools and Wizards menu, select the Quantum Max, and the correct com port, then flash the controller.
Page 175: 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 176: 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 1283 (X-axis maximum travel, millimeters) $131 610 (Y-axis maximum travel, millimeters) $132 98 (Z-axis maximum travel, millimeters)

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