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Introduction

Product Page

This Guide relates to these Prusa i3 Upgrade Kit:

https://www.bondtech.se/en/product-categ...


Bondtech specific changes:

You can read about all the changed made to the firmware here:

https://www.bondtech.se/en/2019/09/12/fi...


Compatibility

The firmware is compatible with the following machines:

Prusa i3 MK2.5
Prusa i3 MK2.5S
Prusa i3 MK3
Prusa i3 MK3S
  1. Reconnect the Power Cable Turn  the printer ON. Turn  the printer ON.
    • Reconnect the Power Cable

    • Turn the printer ON.

  2. Locate the printer USB port And connect it to your computer using a USB cable.
    • Locate the printer USB port

    • And connect it to your computer using a USB cable.

  3. Download the Firmware from the following link:
  4. Open Prusa Slicer Use the "Configuration" -> "Flash printer firmware" option Locate the file you previously downloaded and uncompressed.
    • Open Prusa Slicer

    • Use the "Configuration" -> "Flash printer firmware" option

    • Locate the file you previously downloaded and uncompressed.

    • Select the Serial Port connecting to your printer and press Flash!

  5. The Firmware Flasher will perform the update process. Do not disconnect your printer while performing the firmware flash.
    • The Firmware Flasher will perform the update process.

    • Do not disconnect your printer while performing the firmware flash.

    • Wait for the process to complete until the "Flash succeeded!" message shows in your screen.

    • Hit the close button and restart your printer.

    • Almost done. Only one critical step left. Check below.

    • Perform a Factory Reset on your printer and choose ALL DATA to erase old values saved to the EEPROM.

    • If you fail to do so, you will experience under-extrusion.

    • Follow Prusa's guide on how to do this here: Prusa Factory Reset

Conclusion

The installation is almost done.

2 things are missing before you are ready to print:

  1. Perform a Factory Reset;
  2. We recommend to use a proper end script with at least 10mm filament retraction before the heater is turned off to avoid heat creep and filament jamming the hotend in between prints.