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Prusa MK4

zekcodezekcode
in Questions & Answers
Hello Repetier

Are the Dev team going to look into implanting the new Prosa MK4 to the repetier server interface?, it does not look like these printers comes with the USB serial interface for printing but solely on wifi/ethernet connection.

even though it does indeed use USB interface instead of SD card for printing.

Kind regards

Comments

  • zekcodezekcode
    And even if the the printer supports direct printing on USB from repetier, are the dev team going to look into implanting wireless connection to printers, to remove the hassel of cables/wires and USB hubs? :) 
  • RepetierRepetier
    We are trying to get hands on a test device at the moment. Announcement says it uses Buddy Firmware which is same base as Pruse Mini which works with usb, so I assume for now that this is at least a way that works.

    With our current solution wireless is often bad even if it works. So many things can break wifi and then print would stop. Question is how we could send files and print from local memory so disconnects would not harm. But that is something I can not say how it would work and if we can do it. It talks encrypted with PrusaConnect but we are not Prusa so question is if it is accessible in some way to do the same. That needs to be tested and evaluated when I can test it my self.
  • zekcodezekcode
    Repetier said:
    We are trying to get hands on a test device at the moment. Announcement says it uses Buddy Firmware which is same base as Pruse Mini which works with usb, so I assume for now that this is at least a way that works.

    With our current solution wireless is often bad even if it works. So many things can break wifi and then print would stop. Question is how we could send files and print from local memory so disconnects would not harm. But that is something I can not say how it would work and if we can do it. It talks encrypted with PrusaConnect but we are not Prusa so question is if it is accessible in some way to do the same. That needs to be tested and evaluated when I can test it my self.
    Hello R,

    I just got confirmation from Prusa, that the MK4, indeed supports Printing over USB, on a USB C connection, they told me that software like Octoprint etc. would need an update to work.

    It might be possible to send the entire G-code to the printers memory, so that disconnection would not harm the print, looking forward to see how that would be resolved inside Repetier. I know that Octoprint have for the MK3, the possibility to write to the SD card for the printer, maybe the USB stick/SD card can be used in a way like this for the MK4, to temporary storage.


  • RepetierRepetier
    > I just got confirmation from Prusa, that the MK4, indeed supports Printing over USB, on a USB C connection, they told me that software like Octoprint etc. would need an update to work.
    Ok that is already good news. Probably some commands working differently, but if it is same as pruse mini it should already work. Anyhow, guess in long run I make extra firmware Description for Buddy Firmware as the have named it.

    We currently do not support remote printing. That goes against our logic preventing server commands from working. But at some time we will add that as long as gcode then has no server commands it would work. I think they can have usb stick as permanent memory storage or board has some. After all their software also uploads file first and then starts print, but we will see when I have a device at hand what I can do.
  • zekcodezekcode
    Repetier said:
    > I just got confirmation from Prusa, that the MK4, indeed supports Printing over USB, on a USB C connection, they told me that software like Octoprint etc. would need an update to work.
    Ok that is already good news. Probably some commands working differently, but if it is same as pruse mini it should already work. Anyhow, guess in long run I make extra firmware Description for Buddy Firmware as the have named it.

    We currently do not support remote printing. That goes against our logic preventing server commands from working. But at some time we will add that as long as gcode then has no server commands it would work. I think they can have usb stick as permanent memory storage or board has some. After all their software also uploads file first and then starts print, but we will see when I have a device at hand what I can do.
    Hello R,

    Any updates on here? we stand to recive some printers on friday. (6 units) im planing on hocking them up to Repetier with ethernet if possible. 

    You guys got a testunit yet? :) 
  • RepetierRepetier
    No unit so far. But will be glad for any feedback once you have it. Test first with usb until it works. Same settings should work with tcp if it is a put through telnet like port. Maybe use a portscanner to see all available ports on prusa for testing.
  • zekcodezekcode
    Repetier said:
    No unit so far. But will be glad for any feedback once you have it. Test first with usb until it works. Same settings should work with tcp if it is a put through telnet like port. Maybe use a portscanner to see all available ports on prusa for testing.
    Hello R,

    Let's hope it will arive soon! i might can setup access to on printer and server for remote access for you guys to work on if you want. We arent really going to implant them into the setup before the repetier software can include them. :) i will ofcorce fidle around with it my self also :)  
  • GrizakGrizak
    Hi - I received my MK4 and added it to my Repetier Servo Pro with a USB connection (The MK4 has a USB-C connector).  Installation was simple - the same as the MK3S+.

    So far so good - it seems to work fine.  I've printed a few things, no problems.  The items I have printed are smaller, 4- 6 hour prints.  I have QTY 2 - MK3S+ and QTY 1 - MK4 all running on the same Raspberry Pi Server.

    I just re-slice the models in Prusa Slicer (2.5.2) with the MK4 profile - and upload the G-code into Repetier.  Everything seems to work - I'm getting faster prints with the MK4, auto first layer, etc.

    The only odd thing with the MK4 is the display - when sending prints via Repetier - the display doesn't update with the image of the print or the file name of the job from Repetier. The MK4 seems to get stuck on the last job that you printed directly from the MK4's USB memory stick.  So the MK4 printer will show the name and image of the last job you printed directly on the MK4 with the proper % complete value - but Repetier will display the proper file name, image and the same % complete value.  This doesn't impact printing - it's just a little confusing when you walk by the printer and see the image of one job, while the printer is printing something else.


  • zekcodezekcode
    Just got some printers delivered.
    Portscans shows only port 80/TCP open. nothing else.

    No connection as of right now available for TCP uplink, so same limitations as the Prusa Mini unfortunately :(

  • RepetierRepetier
    Sounds correct. Port 80 is for web gui with browsers and if there is no other port only usb would be possible.
  • zekcodezekcode
    Repetier said:
    Sounds correct. Port 80 is for web gui with browsers and if there is no other port only usb would be possible.
    There is indeed no other ports, just like the mini... i just talked to prusa, they said it was on the roadmap to connect to printers like USB, via ethernet. But inputshapeing was top priorities at the momemt. There is no way for the Repetiere software to add printers PrusaLink api?

  • RepetierRepetier
    Connecting to storage and print type systems is planned for a later stage. The main problem here is we need to strip 90% of the functions for this as most of the things will not work when the printer controls print like server code, live preview, time prediction. But PrusaLink API
    https://github.com/prusa3d/Prusa-Link-Web/blob/bc157b2496874f1712165f71ac8521e5c0cb6e07/spec/openapi.yaml
    also shows no query call to see what is going on. Hope it is just not in api description since knowing what is being printed and progress would be something I'd like to show at least.
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