Small Printer Farm Maximum number of printers per raspi

edited December 2020 in General
Hi! How many printers are there physically connected to raspberripi? Which models? What are the nuances of connection?
Of course, the simultaneous operation of all printers is intolerable.



Comments

  • > Of course, the simultaneous operation of all printers is intolerable.
    Why? Server was written to allow them to operate in parallel without interference.

    If you have a pi 3 or higher you can easily run 4 or 5 printers without webcam. With webcam you can if resolution is not too high and they support hardware mjpg. But you need to check power usage on pi - that is critical especially with many printers any electronic problem can get problems on other components as well. See the bolt menu to see if you e.g. had undervoltage. In general I'd not allow printers to draw current from the pi, see
    https://www.repetier-server.com/knowledgebase/undervoltage-and-throtteling-of-pi/

    on how to prevent that. Then only webcams and display draw current.

    Also use fast sd card to not get small pauses when you upload bigger files.
  • Repetier said:
    > Of course, the simultaneous operation of all printers is intolerable.
    Why? Server was written to allow them to operate in parallel without interference.

    If you have a pi 3 or higher you can easily run 4 or 5 printers without webcam. With webcam you can if resolution is not too high and they support hardware mjpg. But you need to check power usage on pi - that is critical especially with many printers any electronic problem can get problems on other components as well. See the bolt menu to see if you e.g. had undervoltage. In general I'd not allow printers to draw current from the pi, see
    https://www.repetier-server.com/knowledgebase/undervoltage-and-throtteling-of-pi/

    on how to prevent that. Then only webcams and display draw current.

    Also use fast sd card to not get small pauses when you upload bigger files.
    It meant, of course, all printers working simultaneously. Difficulties of translation.
    For all printers uses web-cam but it is logitech with supports mjpg.
  • Ok, so everything is fine. Just watch out for traffic from webcams to not be bigger than you can handle on network and that power is stable. Best use pi 4 with multiple printers as it is the fastest also with regard to usb bus/network.
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