Some Noob questions

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    Adalyn O

    Hi Jens! I'll do my best to answer your questions.

    1. Yes, if you have a Raspberry Pi with Octoprint installed, you can install our plugins for Palette and CANVAS, so you won't need a CANVAS Hub. Some of the advantages to printing in connected mode include digital pinging (pings don't need to pause during the print), and being able to start/monitor your print from your web browser.
    2. Yes, you can still use Octolapse. The file we use for Palette 2 and your printer is an mcf.gcode file, which combines the instructions for Palette to make filament and the G-Code in a single file, which is transferred serially between Palette and the printer.
    3. We don't have this feature to purge in an object, but you may be interested in p2pp which is a post-processing tool for Slic3r.
    4. Can you clarify this a bit further?
    5. Correct, Palette 2 is not able to connect via WiFi.

    Let me know if there's anything I can elaborate on.

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    Kurt Skauen

    For #4. Yes, you can use an OTG USB HUB. But I would highly recommend getting a more powerful Pi instead. The Zero cause the printer to stutter on curves even without a camera installed. But if you where happy with how it worked before, the Palette plugins should not change it much. They do parse all gcode being sent to the printer in real-time so it will have a slight impact though.

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    Jens Giesser

    Thank you for your answers :)

    @ Adalyn:
    3: This p2pp thing... this is not made from Mosaic? This seems to be very complex. How is Palette2 working without that if there are so many changes needed? How should a customer know that if there is no lovely Adalyn telling him such stuff?

    4: The Raspberry Pi sticks directly into the back side of the Einsy board. The WebCam is connected to the Micro USB on the side of the Raspberry Pi. Where can I plug in the Palette2? I need a USB Hub if I want to use the WebCam and the Palette2 at once, right?

     

    @ Kurt:
    Untill now I was not able to see differences in the print quality with of without the Raspberry Pi and I don't understand how the Raspberry Pi can change the printer's behaviour.
    I slice my files using Slic3r PE, upload the gcode to Octoprint and run it from there.
    Can you please explain how it is possible that this is different to running a gcode from the SD card?

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    Kurt Skauen

    The reason it can change the printers behavior is that when it's CPU load goes to 100% it can no longer stream data as fast as the printer consumes it. And then the printer will make small pauses while starved for data. And that can change the surface structure quite a bit. It is only a problem in areas of the object where there are many tiny line segments. Like in curves. If you print an objects that is mostly straight lines it will be able to keep up.

    If you want to see a side-by-side comparison of printing from the printers SD, from a Pi 3B, and a Pi Zero you can check this video. It also show one way of hooking a USB hub to the Zero. The actual side-by-side comparison starts around 6:20.

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    Jens Giesser

    @ Kurt: Thank you for the explaination, this is very interesting, I did not thought about that.

    Maybe I should upgrade to a bigger Raspberry Pi then. Which one do you recomment?
    My Raspberry Pi Zero is connected directly to the back side of the Einsy board.
    How do I connect an 'external' Raspberry Pi to the i3 MK3S, WebCam and Palette2?

    Do I connect a USB Hub to the Raspberry Pi USB Port and all other Devices to the USB Hub?

     

            RaspberryPi
                    |
              USB Hub
         |           |           |
    MK3S      P2    WebCam

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    Kurt Skauen

    I think the Pi 3B should be fine. That is what I used in the side-by-side test. In my own printer, I use a 3B+ for ease of mind, but that is probably overkill 😊

    Your connection diagram looks fine. If you go for a 3B, or 3B+, you can omit the HUB though, as they both have 4 regular USB ports available.

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    Jens Giesser

    Ah I see... Thank you again very much.

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    Jens Giesser

    @ Adalyn:

    Again to Point 3 and 4:
    When I do that P2PP thing then I don't need Canvas or Chroma right?
    And the Timelapses with Octolapse will work?
    Octolapse is changeing the behaviour of the printer. After each layer the head will move away and the print will stop for a second.
    Will the Palette2 know that? How?

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    Kurt Skauen

    Now I'm at the deep end, as I have never used neither P2PP nor Octolapse.

    But regardign P2PP, my understanding is that it replace Chroma. And when you use your own slicer you don't need Canvas. So I believe you are right there.

    Regarding Octolapse, I have seen people use it successfully on Palette 2 prints, so it should work. Palette 2 only cares about how much filament is being extruded so it should not be affected by the travel moves and pauses added by Octolapse.

    Only possible catch I can see would be if you are printing in accessory mode and the Palette mistake the Octolapse pause for a ping. But the pauses used for pings in accessory mode is much longer so I don't believe there is a problem there either.

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    Jens Giesser

    Thank you again. What are you using? Canvas or Chroma + what slicer?

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    Kurt Skauen

    Your welcome.

    I'm mostly using Cura + Chroma. But sometimes I use Simplify 3D + Chroma (if I need to split the print into multiple processes).

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