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Need help?Do you have a question about the Original Prusa i3 MK3 and is the answer not in the manual?
General| Build Volume | 250 x 210 x 210 mm |
|---|---|
| Layer Resolution | 0.05 - 0.35 mm |
| Filament Diameter | 1.75 mm |
| Max Nozzle Temperature | 300 °C |
| Max Bed Temperature | 120 °C |
| Nozzle Diameter | 0.4 mm (default) |
| Connectivity | SD card, USB |
| Supported Materials | PLA, ABS, PETG, ASA, Nylon, Woodfill |
| Weight | 7 kg |
Gather necessary tools, utilities, and prepare the upgrade kit components before starting the assembly.
Understand printed part versioning, self-printing requirements, post-processing steps, and identification.
Visually inspect key printer components like the heatbed, smooth rods, and frame for condition.
Detailed steps for safely disassembling the printer, including cable disconnection and component removal.
Prepare necessary parts for upcoming assembly stages, including heatbed cables and stickers.
Install the xBuddy box onto the printer frame and securely mount the xBuddy board within it.
Assemble and attach the Y motor holder, motor, and Y-belt idler components to the printer frame.
Assemble the X-axis end motor and idler components, including bearing installation and lubrication.
Assemble the X-carriage, attach spacers, clips, and guide the X-axis belt system.
Mount the X-axis motor, pulley, and ensure proper belt guidance for smooth operation.
Assemble the Z-bottom parts, attach rubber pads, and install the Z motors onto the frame.
Connect extruder main cable, route cables, and manage them using holders and sleeves.
Assemble the filament sensor, prusa ball holder, and nextruder idler components.
Assemble the extruder motor, gearbox, heatsink, PG-ring, and PG-assembly.
Assemble fan door, connect cables to LoveBoard, and tension the X-axis belt.
Prepare and assemble xLCD components including screen, cover, supports, and reflector sticker.
Connect PSU cables, PE cable, and power panic cable for the black PSU unit.
Connect PSU cables, PE cable extension, and power panic cable for the silver PSU unit.
Connect extruder, fan, and motor cables, ensuring proper routing and management.
Assemble and route heatbed cables, covers, and connect to the xBuddy box.
Install bearings into Y-carriage, considering old vs. new variations, and perform lubrication.
Assemble the Y-belt, tensioner, and holder, ensuring proper alignment and tension.
Install expansion joints and attach the heatbed to the Y-carriage.
Install the ESP module and manage all cables, ensuring proper routing and connection.
Assemble the double spool holder and the filament guide for the printer.
Attach the steel sheet to the heatbed, ensuring the surface is clean for optimal print performance.
Update the printer firmware using the provided USB drive and following on-screen prompts.
Complete the printer calibration wizard, including self-test, loadcell, gearbox, and filament sensor calibration.
Load filament, set up PrusaSlicer, and learn about PrusaLink/Connect for printing.
