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MillRight CNC MEGA V XXL Assembly Instructions Manual

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ASSEMBLY INSTRUCTIONS FOR THE MILLRIGHT CNC MEGA V XXL
Be sure to check the resources page for the most updated assembly instructions.
Important safety rules for operating your MillRight CNC Mega V XXL:
Never place your hands near a spinning end mill or bit.
Always wear eye and ear protection while operating your machine.
Always run a dust collector or wear a mask while performing a milling operation.
Do not leave the machine unattended while running a milling operation.
Do not operate your machine while under the influence of alcohol or drugs.
Secure long hair and loose clothing so it is not caught in spinning mechanisms.
Ensure work pieces are properly secured before running a milling operation.
Keep a fire extinguisher nearby.
Visually inspect wires prior to power up to prevent short circuits.
The Mega V XXL is a big, heavy machine. Plan on spending a full weekend in assembly and seeking help with moving or
flipping heavy assemblies.
We recommend using a blue thread locker on any fastener not secured with a lock washer or lock nut.
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For additional resources, see
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support@millrightcnc.com
We have a big online community. Be sure to join in the discussion.
Facebook MillRight CNC Group
Facebook MillRight Mega V Group
MillRight CNC Forum at www.millrightcnc.proboards.com
Version 1.01
www.millrightcnc.com/resources
if you have questions.

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Summary of Contents for MillRight CNC MEGA V XXL

  • Page 1 Facebook MillRight Mega V Group MillRight CNC Forum at www.millrightcnc.proboards.com Important safety rules for operating your MillRight CNC Mega V XXL: Never place your hands near a spinning end mill or bit. Always wear eye and ear protection while operating your machine.
  • Page 2 V-Wheels Parts V-Wheel Kit • V Wheel (12) • 608 Bearing (24) Hardware V-Wheel Kit • M8 Washer (12) Tools Hard Surface Something Flat to Press Bearings On a hard, flat surface, lay out your v-wheels. Place a 608 Bearing on top of the v-wheel. Using something flat, such as a wood board, press the bearing into the top of the v-wheel.
  • Page 3 Place a second 608 bearing on the top of the v-wheel. Press the bearing into the v-wheel using your impromptu tool. Pinch the inner races of both bearings with your fingers and test that the v-wheel spins freely. Repeat this process with the other v-wheels and set them to the side.
  • Page 4 Repeat the Process with the Left Gantry End Plate. The recessed pockets on the plate should be face Locate a XY Motor Mount. The mount will be installed on the same side of the Gantry End Plates as the v-wheels. Place (2) M4x12 machine screws through the back of the Gantry End Plate (opposite the v-wheels) using the two small holes located between the v-wheels and install the motor mount.
  • Page 5 Phillips Screwdriver Masking/Painters Tape Locate the anti-backlash nut (ABN). The ABN will come with (2) M5 nylock nuts, a M5 grub screw, and a M5 jam nut in the bag. Push the nylocks into the hexagonal holes on the face of the ABN with the nylon facing up.
  • Page 6 X Plate Parts X Plate Z Motor Mount Screw Seat Plate UHMW Screw Seat 178mm Lead Screw Assembled V-Wheel (4) Hardware M5x16 Machine Screws (2) M5 Nylock Nut (2) M4x12 Machine Screw (4) M4 Split Lock Washer (4) M3x16 Machine Screw (6) M3 Nylock Nut (6) V-Wheel Kit •...
  • Page 7 Locate your z screw seat plate and UHMW screw seat. Place the UHMW screw seat on top of the screw seat plate. Make sure the pocket of the UHMW screw seat is facing up as shown. Secure the UHMW screw seat to the screw seat plate using (2) M5x16 Machine screws and (2) M5 nylock nuts.
  • Page 8 Place (2) M8x40 machine screws in the large holes in the front of the X Plate at the bottom. Place standard spacers on the M8x40 screws, assembled v- wheels, and secure with a M8 nylock nut. Thread the 178mm lead screw into the ABN. Locate the z motor mount. Using (2) M4x12 machine screws with M4 split lock washers, attach the z motor mount to the top of the X Plate.
  • Page 9 spacers with the shaft in the top of the coupler. Secure the Z motor with (4) M4x16 machine screws going first through the motor, through the spacers, and into the Z motor mount. Using a 2mm hex key, tighten the bottom screw of the coupler.
  • Page 10 X Extrusion Parts 1450 Mega V Extrusion w/Logo (Box 2) Gear Rack (1)(Box 2) Drag Chain Supports (2)(Box 1) Hardware Large T Nut (14) M5x12 Button Cap (6) M5x20 Button Cap (8) M5 Lock Washers (6) 5/16 x 3/4 Button Cap (8) Tools Phillips Screw Driver 3/16 Hex Key...
  • Page 11 Retrieve the x/z assembly. The v-wheels will pinch the outside of the Mega V extrusion using the v shaped slots on the top and bottom. If the v-wheels are too tight to slide on the extrusion, use a 10mm wrench to turn the eccentrics until the assembly slides onto the extrusion.
  • Page 12 Subframe Assembly Parts 1465mm long extrusions (4) 1450mm long extrusions (2) Gussets (4) Foot Plates (4) Leveling Feet (4) Hardware Inside corner joiners (16) M5x8 Machine Screws (16) Drop-in T Nuts (16) 5/16x3/4” Screws (8) Tools Phillips Screw Driver 3mm Hex Key 3/16 Hex Key The subframe has 1465mm extrusion (crossmembers) running left to right with 1450mm extrusion running front to back.
  • Page 13 The edge of the frontmost crossmember should be about 422 millimeters from the edge of the “middle- front” crossmember. The four crossmembers are NOT placed equidistant from one another. Placing them with the spacing described will allow you to use the bed design file that we have provided.
  • Page 14 four gussets in the inside four corners of the frame Place you just created. Put the gusset into position and take note of where the holes are. Pull the gusset away and put drop in T nuts there. Secure it with M5x8 machine screws. Blue thread locker is recommended.
  • Page 15 Leg installation Parts Gussets (16) 760mm Leg Extrusions (4) (2) 1330mm extrusions (2) Hardware Inside corner joiners (16) M5x8 Machine Screws (64) Drop-in T Nuts (64) Tools Phillips Screw Driver Note that one side of these leg extrusions has two threaded holes. When you install these, the tapped holes should be away from the frame you just built.
  • Page 16 Gather 8 more gussets. Position them as shown on the legs. The exact height of the top flange of the gusset is not critical so long as all eight are at the same height, but we recommend around 430mm. This step will be easiest if you use one or two sections of wood or other material that are about this length.
  • Page 17 Your frame assembly should now look like the below picture. Gather the remaining (2) 1450mm extrusions and install those the same way you did the 1330 extrusions. Start by installing the inside corner joiners on the ends of the 1450mm extrusion, then slide them down into the legs.
  • Page 18 Enlist a couple of helpers, such as neighbors who will be jealous of your MillRight CNC Mega V XXL and want to buy one too, to assist you in flipping the frame assembly right-side-up. Once flipped over, your frame should look like the picture.
  • Page 19 Y Bearing Rail Construction Parts Gear Rack (2) Mega V Extrusions (2) Y end plates (4) Hardware M4x12 Button Cap Screws (8) M5x20 Button Cap Screws (16) Drop-in T Nuts (8) Large T Nuts (16) 5/16x3/4” Button Cap Screws (32) Tools 3mm Hex Key 3/16 Hex Key...
  • Page 20 Install the (4) Y end plates onto the ends of the 1450mm 6060 extrusion using 5/16x3/4” screws and shown. Use (4) of these screws for each plate. Do not tighten them down yet or it will make the next step more difficult. Install the Y bearing rails onto these plates.
  • Page 21 Place the gantry on top of the Y rails. The gantry is heavy, and the X Plate can roll over your fingers or off the gantry if you tilt the rail. If you don’t feel comfortable lifting this heavy assembly by yourself, get a friend to assist you.
  • Page 22 When all is adjusted, fasten the Y end plates to the legs using drop in T nuts and M5x12 button cap screws. Place the drop in T nuts into the legs, then push them up to the holes using a zip tie (from the wire management bag), a screwdriver, or something similar.
  • Page 23 Take note of what side is the front of the machine. The side of the gantry with the MillRight sticker is the front. As viewed from the front, the left side of the gantry gets a “Length 3675” motor and the right side gets a “Length 2550”...
  • Page 24 Homing Switch Installation Parts Homing Kit Includes Everything Needed Hardware Homing Kit Includes Everything Needed Install the Z Switch Engagement Stud into the Stud bracket on the Z axis. Put the M5x35 button cap screw through the stud bracket, then slide on an M5 split-lock screw and a regular M5 nut (not a nylock nut).
  • Page 25 Place a drop in T nut into the right side of the gantry rail. Set the homing spacer in place, the L bracket on top of it, and secure it with an M5 split lock washer and M5x30 machine screw. Install the short roller switch onto the L bracket with (2) M3x20 screws and (2) M3 nylock nuts.
  • Page 26 Router Installation Parts Router Hardware Already in place Loosen the pinch bolt in the router mount and slide the router into the opening of the mount. The mounts are machined very close to the size of the router body. Depending on the amount of powder coat accumulated in the opening, you may have to use a flathead screwdriver to gently pry the opening as you wiggle the router into position.
  • Page 27 The drag chains were snapped in half when stuffed into the voids of your extrusions. They can be snapped back together. The longer drag chain is for the X and the shorter is for the Y. The drag chain carries the wires along with the moving assemblies and rests on top of the drag chain supports.
  • Page 28 Attach the Z switch wires onto the Z axis homing switch. The Z uses the connector with just a single wire pair and is the longest wire set in the homing switch. The black wire goes onto the terminal on the side while the red wire goes onto the bottom terminal nearest to where the black wire is installed.
  • Page 29 Now install the Y drag chain support on the right side of the machine using (3) drop in T nuts and (3) M5x12 machine screws with M5 split lock washers. Notice that one end has a slot on it. Position the slot towards the front of the machine, with the piece about 400mm (16 inches) from the front right Y End Plate.
  • Page 30 The control box has three small brackets on the bottom that are folded inward to protect them during shipping. Loosen the screw that holds them in place and rotate them outward, then retighten them. The control box mounts to the front right side of the frame using (3) drop in T nuts and (3) M5x8 machine screws. Some thread locker is suggested.
  • Page 31 Rack and Pinion Final Adjustments No new hardware or parts are needed for this step. The gear rack needs to be adjusted to allow for proper engagement. The pinion gear should only have a couple of teeth left before running off the gear rack at the point of engaging the homing switch.
  • Page 32 The casters are intended to be installed on the interior facing portion of each leg using (4) drop in T nuts and (4) M5x8 machines screws each. The goal is to adjust them in such a way that you can step on the foot lever to lower the wheel to engage the wheels to roll the machine around, when necessary, but so that the leveling feet are on the ground when the foot lever is “kicked up”.