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  1. Ensure the printer is turned off and not plugged in. While moving with the extruder, the X-axis motor works as a generator. You will create a small amount of electricity and the LCD might flicker. Move with the extruder reasonably slowly and in the future always use the printer's controls. Move the extruder manually all the way to the left.
    • Ensure the printer is turned off and not plugged in.

    • While moving with the extruder, the X-axis motor works as a generator. You will create a small amount of electricity and the LCD might flicker. Move with the extruder reasonably slowly and in the future always use the printer's controls.

    • Move the extruder manually all the way to the left.

    • By rotating BOTH threaded rods at the same time on the Z-axis move the nozzle until you reach the heatbed. Try rotating both the rods equally!

    • Check again from a different angle the nozzle is touching slightly the heatbed. Don't bend the heatbed!

    • Don't place the steel sheet on the heatbed during the entire P.I.N.D.A. probe adjustment process. Wait for the XYZ calibration.

  2. Move the extruder carefully all the way to the right. Make sure that the nozzle is not scratching the surface during the movement! If it does, rise the right side of the X-axis by rotating the right Z motor slightly clockwise.
    • Move the extruder carefully all the way to the right.

    • Make sure that the nozzle is not scratching the surface during the movement! If it does, rise the right side of the X-axis by rotating the right Z motor slightly clockwise.

    • If an adjustment is needed, you can lower the nozzle height by rotating the right Z motor counter-clockwise.

  3. Move the extruder to the centre of the X-axis. Take a zip tie from the package and place it under the P.I.N.D.A. sensor. Use the middle part of the zip tie, not the tip. Release the screw holding the P.I.N.D.A. sensor and gently press it against the zip tie.
    • Move the extruder to the centre of the X-axis.

    • Take a zip tie from the package and place it under the P.I.N.D.A. sensor. Use the middle part of the zip tie, not the tip.

    • Release the screw holding the P.I.N.D.A. sensor and gently press it against the zip tie.

    • Tighten the screw on the P.I.N.D.A. holder again. Proceed carefully as you might break the holder!

    • !!! DO NOT use glue to fix P.I.N.D.A. probe in the new type of holder with the M3 screw, you won't be able to release it again !!!

    • A correct height of the P.I.N.D.A. sensor compared to the nozzle should be similar to the last picture.

  4. Go to www.prusa3d.com/drivers and download latest PRUSA3D drivers for your printer.
  5. YOU MUST UPDATE YOUR FIRMWARE to MK2.5 version, otherwise your printer won't work !!!
    • YOU MUST UPDATE YOUR FIRMWARE to MK2.5 version, otherwise your printer won't work !!!

    • Download the zip file and extract it, the firmware file (*.hex file) is inside.

    • Updating firmware for the first time? Here is a step by step guide: Upgrading the firmware v1.6

  6. Please watch our New User Guide before printing. http://www.prusa3d.com/buildvideoMK3
    • Please watch our New User Guide before printing. http://www.prusa3d.com/buildvideoMK3

    • This video is describing features of Original Prusa i3 MK3, but your Original Prusa i3 MK2.5 shares some of them as well.

  7. Based on the examination of printers received back from the customers, we compiled a list of the most common problems causing poor print quality. Check them out and improve your 3D prints today!
    • Based on the examination of printers received back from the customers, we compiled a list of the most common problems causing poor print quality. Check them out and improve your 3D prints today!

    • Check the video here: https://youtu.be/Lsa-PXAXdKY

    • For other tips and tutorials go to: https://help.prusa3d.com/

  8. See our free 3D Printing Handbook - https://www.prusa3d.com/3dhandbookMK25 Read the chapters 3.2 Disclaimer and 3.3 Safety instructions
    • See our free 3D Printing Handbook - https://www.prusa3d.com/3dhandbookMK25

    • Read the chapters 3.2 Disclaimer and 3.3 Safety instructions

    • Read the chapter 6.2 Setup before printing.

    • Download and install the drivers - chapter 9 Printer drivers. Don't forget we have ready to print settings for Slic3r PE.

    • Calibrate the printer by following the chapter 6.2.1 Calibration flow and wizard. Please follow the steps exactly, otherwise you can permanently damage the print surface!

  9. Read the chapter 7 Printing of 3D Printing Handbook.
    • Read the chapter 7 Printing of 3D Printing Handbook.

    • Congratulations! You should be ready to print by now ;-)

    • You can start by printing some of our test objects bundled on the included SD card - you can check them out here prusa3d.com/printable-3d-models

  10. If you encounter any problems at all, don't forget you can always check out our knowledge base at http://help.prusa3d.com. We're adding new topics every day!
    • If you encounter any problems at all, don't forget you can always check out our knowledge base at http://help.prusa3d.com. We're adding new topics every day!

  11. If you need help with the build, check out our forum with great community :-)
Finish Line

59 other people completed this guide.

Jakub Dolezal

Member since: 02/20/2017

222 Guides authored

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Prusa Research Member of Prusa Research

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364 Guides authored

11 Comments

The PINDA probe is set up on the heatbed without the build plate? I was just wanting to double check that.

Alec Murchie - Reply

Correct. Set it up without the build plate.

Jake Block -

Hi Alec, yes.. keep the plate away until asked in the Wizard to place it on the printer.

Jakub Dolezal -

I had severe problems with adhesion to the new print bed. Cleaning it with 99.5% IPA did not help. A good rub with acetone did the trick though.

I would assume that the build plates comes “ready to print”, but not so in my case.

Christoffer Å - Reply

Hi Christoffer, as soon as the PEI foil is applied on the steel sheet it gets packed in the protective bag. Cleaning with IPA should be enough. Are you sure your live adjust Z is set properly? Also sometimes the material might be the problem.

Jakub Dolezal -

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