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Cake day: July 17th, 2023

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  • I’ve previously printed custom lego pieces for the Lego League kids, that my wife has at work. I’m using a Creality Ender 3 S1 with 0.4mm nozzle. Though I’ve not tried smaller parts. They were 8x2 units and 2 or 3 units high. They have the name of the kid on the side. It took some tries to get the tolerances good enough, but now I can print them with normal speed and minimal post processing.

    So I think it depends on what pieces you want to print.


  • I guess you have some kind of linux based system of your home server. The USB connection to the printer will create a Serial Interface in your system under /dev. How it is called depends on the USB chip used in your printer, but often this is something like ttyUSB0.

    So when connecting the printer you get the device file /dev/ttyUSB0 (or similar) on your home server (yes, the Serial interface is just a special file on that level). You can now mount this device file into the docker container like any other hostfile via the volume option.

    Like docker run -v /dev/ttyUSB0:/dev/ttyUSB0 octoprint or by using the volumes key for your octoprint service in the docker-compose file, providing the same string as in the docker run command.

    I think that should work, though I haven’t tested it.