Canvas Hub communication errors

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11 comments

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    Steve Lionel

    I have seen those last two messages, and when I look at my printer I see it just rebooted! No idea why. Once I start a print, it's fine.

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    Jonny Yeu

    Hey James, which printer are you trying to use with your CANVAS Hub and Palette 2?

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    James Armstrong

    It is a Wanhao Di3 but I am running repetier firmware on it. 

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    James Armstrong

    Just seeing how the Canvas plugin tries to steal that connection I wonder if it is trying to open the serial port the printer is using also when trying to do the smart auto reconnect. I have to disconnect and physically remove the Palette USB from the Hub anytime I was trying to connect to the printer or they would fight each other.

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    Steve Lionel

    I find I have to do the same thing. Sometimes it works, mostly everything needs to be turned off, unplugged, and restarted. Multiple times.

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    Jonny Yeu

    Hey James, could you please turn auto-connect off and see if the same error occurs?

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    James Armstrong

    I ended up switching my rpi repetier server setup to octoprint and added the two modules and it is working fine. Either the Hub doesn't have enough power or there is something wrong with the usb hub board on the pi-zero.

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    Jonny Yeu

    Thank you for the update, James!

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    Graham

    I agree - I've given up with the hub. It just doesn't communicate well -  it can't see either the pallette2 or printer without alot of re-starts and trying re-connects or I go through the pallette preparation steps, but then the print doesn't start, I've wasted quite a bit of filament trying to get it all to work together.  It was a nice idea, but unfortuantely it just doesn't seem to play well. Think I'll give up on the hub and revert to SD card and Pronteface

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    Steve Lionel

    The updated plugin helps with the disconnects, but the best thing I did was junk the CANVAS Hub and buy a Raspberry Pi 3B+, install the plugins, and use that. Works perfectly.

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    Graham

    Thanks, I've got a raspberry pi lying around (well two, but one is in use), I'll try that. Hopefully they might be able to sort out the hub comms issue, as I like the idea - it's a neat compact package

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