andy pugh wrote: > On 24 June 2013 15:50, Charles Steinkuehler <[email protected]> wrote: > > >> I have some folks from the 3D printer world asking me if LinuxCNC can >> be used in a "gcode mode" similar to how the Arduino currently >> operates these machines (a serial terminal that accepts gcode and >> spits out the occasional status message). >> > > This was historically called "DNC" or "drip feed" and you might find > something with those as search terms. > However, as far as I know (and it isn't very far) LinuxCNC has never > supported that. > There are good reasons not to support true drip feed, as it is not guaranteed real time. If the sending computer loses the connection, the part ends up half finished. It was useful on machines with severely limited buffers.
I know at one time, LONG ago, there was discussion of a scheme to use FTP or nfs to transfer a file to a particular directory, a cron job would detect the file, mv it to another place and then trigger EMC to run it. (I say EMC to indicate how long ago this was.) LinuxCNC still has this functionality, to load a file by name and give the run command. The main component is halui, see the integrator's manual for more info. That section is pretty terse, I'm not sure if there is any more comprehensive doc on halui anywhere else. I think in today's world, sending G-code via a real serial port is no longer appropriate, especially for 3D printer files. USB or network makes much more sense. Jon ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
