PrusaLinkPy is a library to use the Prusa Link API.

The library makes it easy to use the prusa API in python. The library is based on Request.

Installation :

pip install PyPrusaLink

Update :

pip install PyPrusaLink -U

Example of use :

# Library import
import PrusaLinkPy

# Printer instantiation
# IP : 192.168.0.123
# API KEY : 8ojHKHGNuAHA2bM
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")

# Get bed temperature
getPrint = prusaMini.get_printer()

# Display bed temperature
print(getPrint.json()["telemetry"]["temp-bed"])

# Delete a files on USB drive :
prusaMini.delete("/5H30M_~1.GCO")

# Transferring a file to the printer
if not prusaMini.exists_gcode('FOLDER/test.gcode') :
    prusaMini.put_gcode('C:/AM/test.gcode', 'FOLDER/test.gcode')

# List files on USB Drive :
prusaMini.get_files().json()["children"]

# Print this file 
prusaMini.post_print_gcode('/usb/test.gcode')

The library changed its name in May 2024. Before it was called prusaLink. Prusa staff asked me to leave them the name.

Change Log

2.2.1 :

Tab correction

2.2 :

Version made by enrgarci

• Update README.md
• Modified delete_job() to fix request from get to delete
• added :
  • pause_print()
  • resume_print()
  • stop_print()

2.1.1 :

• Update README.md
• added :
  • get_transfer
  • get_settings

2.1.0 :

• Update README.md
• added :
  • delete
  • get_status()
  • get_storage()
  • delete_job()

2.0.1 :

• Bug correction on put_gcode(filePathLocal, remoteDir, printAfterUpload = False, overwrite = False)

2.0.0 :

• Support firmware 5.1.0
• Added :
  • get_files(remoteDir)
  • put_gcode(filePathLocal, remoteDir, printAfterUpload = False, overwrite = False)
  • exists_gcode(remotePath)

1.0.0 :

• First Release

Installing PrusaLinkPy and Supported Versions

PrusaLinkPy is available on pip :

python -m pip install PrusaLinkPy

PrusaLinkPy officially supports Python 3.9+ with Prusa printers (MINI, MK4 or XL) firmware 5.1.0.

API Reference

Low Level Functions

get_version()

get_printer()

get_job()

get_status()

get_storage()

get_files(remoteDir)

delete(remotePath)

post_gcode(remotePath)

put_gcode(filePathLocal, remoteDir, printAfterUpload = False, overwrite = False)

exists_gcode(remotePath)

pause_print()

resume_print()

stop_print()

Not documented :

• get_transfer
• get_settings

For compatibility with old versions :

delete_job()

High Level Functions

get_recursive_files(remoteDir)

User Guide

PrusaLinkPy.get_version()

Read version :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM", port=8017)
obj = prusaMini.get_version()
obj.json()

Return something like :

{
    'api': '2.0.0', 
    'server': '2.1.2', 
    'nozzle_diameter': 0.4, 
    'text': 'PrusaLink', 
    'hostname': '', 
    'capabilities': 
    {
        'upload-by-put': True
    }
}

PrusaLinkPy.get_printer()

Get printer :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_printer()
obj.json()

Waiting for Changing Filament :

'link_state': 'ATTENTION' 
'error': True

Return something like :

{
    'telemetry': 
    {
        'temp-bed': 16.3,
        'temp-nozzle': 16.7,
        'print-speed': 100,
        'z-height': 82.0,
        'material': 'PLA'
    }, 
    'temperature': 
    {
        'tool0': 
        {
            'actual': 16.7,
            'target': 0.0,
            'display': 0.0,
            'offset': 0
        },
        'bed': 
        {
            'actual':16.3,
            'target': 0.0,
            'offset': 0
        }
    },
    'state': 
    {
        'text': 'Operational',
        'flags': 
        {
            'operational': True,
            'paused': False,
            'printing': False,
            'cancelling': False,
            'pausing': False,
            'error': False,
            'sdReady': False,
            'closedOnError': False,
            'ready': True,
            'busy': False
        }
    }
}

PrusaLinkPy.get_job()

Get job :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_job()
obj.json()

Return something like :

{
    "state":"Operational",
    "job": None,
    "progress": None
}

PrusaLinkPy.delete_job(job)

Delete a job. Job number is available with get_job() or get_status()

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.delete_job("43")

PrusaLinkPy.get_status()

Get job :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_status()
obj.json()

Value of printer->state :

IDLE (Main Screen)
PRINTING
FINISHED (Print finish, screen not on main screen)
PAUSED (Pause by user, Print fan error)
STOPPED (Print finish, stopped by user)
ATTENTION (Filament Change)

Return something like :

{
    "job":
    {
        "id":43,
        "progress":0.00,
        "time_remaining":120,
        "time_printing":143
    },
    "storage":
    {
        "path":"/usb/",
        "name":"usb",
        "read_only":false
    },
    "printer":
    {
        "state":"PRINTING",
        "temp_bed":57.3,
        "target_bed":0.0,
        "temp_nozzle":24.1,
        "target_nozzle":0.0,
        "axis_z":162.2,
        "flow":100,
        "speed":100,
        "fan_hotend":0,
        "fan_print":0
    }
}

PrusaLinkPy.get_storage()

Get job :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_storage()
obj.json()

Return something like :

{
    'storage_list': 
    [
        {
            'path': '/usb/', 
            'name': 'usb',
            'type': 'USB', 
            'read_only': False, 
            'available': True
        }
    ]
}

PrusaLinkPy.get_transfer()

Not Tested

Get job :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_transfer()
obj.text

Return something like :

TODO

PrusaLinkPy.get_settings()

Completely useless

See here :

https://github.com/prusa3d/Prusa-Firmware-Buddy/blob/4bea923810302d654b932291ba324eaedff072fc/lib/WUI/link_content/prusa_link_api.cpp#L181C16-L181C16

Comment from Prusa Developper :

 // Some stubs for now, to make more clients (including the web page) happier.

Get job :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_transfer()
obj.text

Return something like :

{"printer": {}}

PrusaLinkPy.get_files( remoteDir = '/')

Get Files on USB Drive :

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.get_files()
filesRet = obj.json()

Return something like :

{
    'type': 'FOLDER', 
    'ro': False, 
    'name': 'usb', 
    'children': 
    [
    {
        'name': 'MTN', 
        'ro': False, 
        'type': 'FOLDER', 
        'm_timestamp': 1702628945, 
        'display_name': 'MTN'
    },
    {
        'name': 'S2_V2IS', 
        'ro': False, 
        'type': 'FOLDER', 
        'm_timestamp': 1702565182, 
        'display_name': 'S2_V2IS'
    }
    ]
}

Workalso with subfolder

obj = prusaMini.get_files(remoteDir = '/SUBFOLDER')

PrusaLinkPy.get_recursive_files( remoteDir = '/')

Get all files (only gcode and bgcode) in a folder and subfolder.

Warning : return nested dict.

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
dictt = prusaMini.get_recursive_files()

{
    'MTN': 
    {
        'CHGT_BUSE.gcode': '/MTN/CHGT_B~1.GCO', 
        'DEBOUCHAGE.gcode': '/MTN/DEBOUC~1.GCO', 
        'PRECHAUFFE.gcode': '/MTN/PRECHA~1.GCO'
    }, 
    'S2_V2IS': 
    {
        '2h33m.bgcode': '/S2_V2IS/2H33M~1.BGC',
        '5h5m.bgcode': '/S2_V2IS/5H5M~1.BGC'
    }
}

PrusaLinkPy.delete(remotePath)

Delete a file or a folder on USB drive

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.delete('/DEBOUC~1.GCO')

PrusaLinkPy.post_gcode(remotePath)

Print a file already poresent on USB key

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
obj = prusaMini.post_gcode('/DEBOUC~1.GCO')

PrusaLinkPy.put_gcode(remotePath, printAfterUpload = False, overwrite = False)

Send a file on USB Drive.

Can create a folder !

if ret.status_code = 409 -> Conflict : File already exists if ret.status_code = 415 -> {"title": "415: Unsupported Media Type","message":"Not a GCODE"}

printAfterUpload : Set at True to print after upload.

overwrite : Allow file Overwrite

FW 5.1.0 :

• Warning: printing starts even if the bed is not empty

• Can only send bgcode and gcode

  import PrusaLinkPy prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM") status = prusaMini.put('C:/MTN/DEBOUCHAGE.gcode' , 'MTN/DEBOUCHAGE.gcode')

  Overwrite

  status = prusaMini.put('C:/MTN/DEBOUCHAGE.gcode' , 'MTN/DEBOUCHAGE.gcode', False, True)

  Overwrite and Print

  status = prusaMini.put('C:/MTN/DEBOUCHAGE.gcode' , 'MTN/DEBOUCHAGE.gcode', True, True)

PrusaLinkPy.exists_gcode(remotePath)

Check if a file exists on USB drive.

Return True or False

import PrusaLinkPy
prusaMini = PrusaLinkPy.PrusaLinkPy("192.168.0.123", "8ojHKHGNuAHA2bM")
status = prusaMini.exists_gcode('/DEBOUC~1.GCO')

PrusaLinkPy.pause_print()

Pause actual print.

Added in 2.2.0 .

PrusaLinkPy.resume_print()

Resume paused print.

Added in 2.2.0 .

PrusaLinkPy.stop_print()

Stop actual print.

Added in 2.2.0 .

API

API not implemented in my lib :

• retrieve thumbnail :

  r = requests.get('http://192.168.0.123:8017/thumb/l/usb/TAVERN~1.GCO', headers=headers)

/api/settings

POST /api/job Link to Buddy code

GET/POST /api/download Link to Buddy code

Bugs present in Prusa MINI printer firmware 4.4.1:

• There is no possibility to have the list of folders present in a directory

  • Solved in firmware 5

• You cannot upload a gcode in a subfolder of the USB key

  • Solved in firmware 5

• When the printer detects the end of the filament and it displays "Change Filament" the telemetry information is no longer good. Here is the information returned by the printer in this case:

  'telemetry': {'temp-bed': 0.0, 'temp-nozzle': 0.0, 'print-speed': 100, 'z-height': 0.0, 'material': '---'}

• Still in the case of a filament change, the status information is incorrect:

  'state': {'text': 'Operational', 'flags': {'operational': True, 'paused': False, 'printing': False, 'cancelling': False, 'pausing': False, 'sdReady': False, 'error': False, 'closedOnError': False, 'ready': True, 'busy': False}

Inspiration

An other lib :

https://github.com/home-assistant-libs/PrusaLinkPy/blob/main/PrusaLinkPy/

Les commandes dans la mini : https://github.com/prusa3d/Prusa-Firmware-Buddy/blob/master/lib/WUI/link_content/basic_gets.cpp

Construire la lib

py -m build

To upload to testpi repo :

py -m twine upload --repository testpi dist/*

To upload to pypi repo :

py -m twine upload dist/*

https://medium.com/analytics-vidhya/how-to-create-a-python-library-7d5aea80cc3f