Your problem with the permission of the SD card can be fixed. You should not have to "SU" to root. The usual thing is to make a group that has read/write/execute for the SD slot then make your login-user a member of that group. I don't know what Linux distribution you have but the SD reader device might be created using udev rules. You can edit the permissions there.
I think saving the G-code to an SD card is the best way to go unless you set up an Octoprint server on a headless Raspberry Pi. This places a web-based interface on the printer. You can use a normal PC (LINUX, Windows or Mac) to run Octoprint but you'd need to understand Python virtual environments to set it up and be willing to let the PC never go to sleep mode. I think this is a good use for an older Pi3 and you can power it with a phone charger. Octoprint adds one more layer of software to learn. Even if it does give you one-click printing. The best software to learn is CAD. it will allow you make custom parts on the printer, mill and lathe. On Mon, Jun 15, 2020 at 1:03 PM Gene Heskett <[email protected]> wrote: > On Monday 15 June 2020 15:22:33 Chris Albertson wrote: > > > "OTG" is a protocol spec, not a plug type. So, yes you will have > > trouble finding a cable with an "OTG" connector on it. > > > > It's explained here: https://en.wikipedia.org/wiki/USB_On-The-Go > > > > Maybe one of these would help, but I don't know what is on the > > Ender3 printer. : > > https://www.amazon.com/Adapter-Standard-Connector-Smartphones-Function > >/dp/B01BXSKPES > > Thats what & where the mini-usb connector is, beside the u-sd socket on > the printer and is intended too allow a pc to command and monitor it, > but the pc can't sleep or even blank its screen for the duration of the > print. Not a recommended operating mode at all ack the docs. But it > would be handier than the turn button on the outhouse door if a usb key > could be plugged into it instead and the driving gcode read from it. > > Powering down the u-sd socket so you can take it to the pc, gain root, > and copy a new part file to it, is a pita. Twould be nice to just copy > it over a usb cable but I apparently don't have the correct cables to > pull that off as cura cannot see the printer with what I have. I think > it may be a charger only cable, no data lines. Sigh.... > > > On Mon, Jun 15, 2020 at 6:58 AM Gene Heskett <[email protected]> > wrote: > > > They've made it damned near impossible to move a gcode file from > > > cura to this printers field of view by their choice of an OTG plug > > > for a usb connection. So I have to use an intermediate location that > > > I as the first user have write access rights to. But everything on > > > the sd card belongs to root. > > > > > > I need a gender swapper to get from the OTG to a regular usb as seen > > > on a key most use for sneakernet. Is there such a beast? Out at > > > wallies 3 days back, they don't even have a cable with an OTG plug, > > > have no clue what an OTG is even. > > Thanks everybody. > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
