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RapidBot Mega 3D Printer
RapidBot Mega is a latest generation 3D printer, capable of printing 3D objects of PLA plastic.
RapidBot Mega uses high quality Linear motion guides. So it is very easy to build. Self locking
design ensures rigid frame with easy steps(Without need of any measurements, during building)
Any person can easily build it by following our Manual.
If you have any queries or requests related to RapidBot Mega 3D Printer, Kindly drop a mail at :
support@makemendel.com, Our team will be ready to help you, and to answer your querries.
MAKE MENDEL
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Summary of Contents for Make Mendel RapidBot Mega

  • Page 1 Any person can easily build it by following our Manual. If you have any queries or requests related to RapidBot Mega 3D Printer, Kindly drop a mail at : support@makemendel.com, Our team will be ready to help you, and to answer your querries.
  • Page 2 10. Integrated power supply for both Printrboard and Heatbed. 11. Uses high quality aluminium pulley with T2.5 belts, to give high accuracy. 12. Self locking design ensures rigid frame. Part List For RapidBotMega Acrylic Sheets MAKE MENDEL Page 2...

  • Page 3: Heated Print

    Top Plate Y Kite support Heated Print Bed Aupport Plate for PCB Heatbed Acrylic plate to connect two Y Rails Support for Y Plate Support for Y Plate Linear Motion(LM) Guide Extruder Base Extruder Motor Plate MAKE MENDEL Page 3...

  • Page 4: Smooth Rod

    M3 x 20 Socket Cap screw M3 x 25 Counter Sink Cap Screw M4 x 20 Socket Cap screw M4 x 25 Socket Cap Screw M4 x 25 Counter sink Cap Screw M4 x 40 Socket Cap Screw MAKE MENDEL Page 4...

  • Page 5: Flange

    M4x10 Washer for mechanical switch 624-Bearing Flange nut Flange bearing Coupling 5 _8 Soft Spring (1)(Extruder 2-Opto) Hard spring (2) Heat sink Paste Dummy Rails Forceps FeviQuick Plastic Tie HOTEND AND ELECTRONICS Part Drawing Stepper Motors-NEMA 17 MAKE MENDEL Page 5...
  • Page 6 4 pin and 2 pin Teflon Molex connector Cooling Fan 60 x 60 USB Printer cable Universal Travel Adaptor Mini SMPS Kapton Tapes (50mm + 15mm) Magnetic Leveler 10m sample PLA M8 Threaded Rod-285mm M8 Threaded Rod of Spool Holder-125mm Smooth Rod-292mm MAKE MENDEL Page 6...
  • Page 7 LMG Rail (26) Flange Bearing (16) X-Y-Z Motor (16) M3 Washer (90) SMPS (4) Flange Nut(16) Extruder Motor Plate (8) M4 Details 1 M4 Nylock Nut (40 Smooth Rod Cap (8) Acrylic Side Fitting (26) Bed Adjustment (2) MAKE MENDEL Page 7...
  • Page 8 Note : How to Increase the build dimensions for Mega in Pronterface Start ProntrFace Go to Settings->Options->Set Build_dimensions to “750x250x165+0+0+0”. Press Ok, and then close and restart the Prontrface It will show you updated PrintBed grid. MAKE MENDEL Page 8...
  • Page 9 Assembly of Mega MAKE MENDEL Page 9...

  • Page 10: Extruder

    Fan Support Piece 12,13,14 Acrylic piece use in Printbed assembly 15, 16 Cap screw for smooth rod Y Plate Side Plate Front Plate 20,21 Support for Y Plate Side Plate Z-mechanical switch Support for Y Plate MAKE MENDEL Page 10...
  • Page 11 Assemble Front (Part No.19), back (Part No.1) and side (Part No.18 & 22) plates using M4 x 20 cap screws. For Top plate to assemble with front, back and side plates use M4 x 25 screws. MAKE MENDEL Page 11...

  • Page 12: M4X40 Socket,

    Assemble a set of 624 Bearings, M4x40 Socket, Mudguard, M4 washer, and M4 Nylock nut. MAKE MENDEL Page 12...
  • Page 13 Part No: 17 is Y Plate. Fix three Motors (2Z and 1Y) using M3 x 12 Screws. On Y plate place two small size rails along with block. Use M3 x 20 screws at both the corners of each rail. Use M3 x 15 screws at the middle of each rail alternatively. MAKE MENDEL Page 13...

  • Page 14: Belt

    Fix GT2 Pulley to the shaft of Y Motor and opposite to it place 624 bearing. On Both the rails place acrylic piece (part no 12 & 14). Attach part no.13 with the GT2 belt using ties. Fix the GT2 belt between GT2 pulley and 624 bearing. MAKE MENDEL Page 14...
  • Page 15 Place Part no.6 on part no. 12, 13 & 14. Use PTFE stain relief above part no.6. PTFE Stain Relief Place aluminium printbed above PTFE stain relief. Use M2.5 x 20 screws for mechanical switch to fix. Part no. 23 . Mechanical Switch Aluminium Printbed MAKE MENDEL Page 15...
  • Page 16 Using Acrylic part and Screws given place the mechanical switch Under X Motor, behind Threaded rod On Left side of the machine. Assemble M4 Nylock, M4x40 Screw, Soft Spring, Washer and place above the Mechanical switch to limit the switch. MAKE MENDEL Page 16...
  • Page 17 Use flange nut at both the ends of Rail. Use M3 x 20 screws to fix the Flange nut. Fix 2 flange bearings opposite to flange nut using M3 x 20 screws. MAKE MENDEL Page 17...
  • Page 18 Fix X-Motor using M3 x 12 screws. Fix T2.5 Pulley to the motor shaft. Fix 624 bearing next to right flange bearing. Attach T2.5 Belt between T2.5 Pulley and 624 Bearing. Place X mechanical switch using M2.5 x 20 Screws. MAKE MENDEL Page 18...
  • Page 19 Part No.9 is support to X plate. Use at Bottom side. Attaching belt to the Extruder Base Plate: Take the Extruder Base Plate, apply some glue on side face (this is not must), then just use Plastic ties to tie it. MAKE MENDEL Page 19...
  • Page 20 Put the 2 Threaded rods inside the FlangeNut. Place X-Axis inside the structure, by putting the bottom of the Threaded Rod inside the Coupling. Put the smooth rod inside the Flange Bearings. Use Caps Part no. 4,5,15 &16). MAKE MENDEL Page 20...
  • Page 21  Now connect each set of heater block in series. Leave one side of each set open for further connection. SET 1 SET 2 SET 3 Solder wires of SET 1 with the 4 pin molex connector which will go to Printrboard. Solder to 4 Pin Molex connector. MAKE MENDEL Page 21...
  • Page 22 Solder the wires SET 2 and SET 3 to the female green connector given each. In the ATX power supply cut yellow and black wires and solder it to male green connector given. Now connect SET 2 & 3 female connector to the each male connector of ATX power supply. MAKE MENDEL Page 22...
  • Page 23 Solder wires of both thermistors to each other and connect it to 2 pin connector which will go to Printrboard. Another ends of both the thermistors solder together to the 2 pin connector, which will go to printrboard. Final view of Printbed. MAKE MENDEL Page 23...
  • Page 24 STEP 7: Electrical wiring (Printrboard REV D) Place PrintrBoard on Acrylic Board with Cap Screw M3x12 Cable connection on Printrboard. MAKE MENDEL Page 24...

  • Page 25: Print

    “MinTemprature triggered” error will go away. 6. Remove the Boot Loader(Black) Jumper from the printrBoard, before connecting it to the PC. The jumper is only needed only during the firmware update. Printer Images : Front View MAKE MENDEL Page 25...
  • Page 26 Back View Left Side View MAKE MENDEL Page 26...
  • Page 27 Right Side View MAKE MENDEL Page 27...