Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Multi extrusion/tool change g-code/script

    Scheduled Pinned Locked Moved
    General Discussion
    2
    2
    464
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • 3DPMicroundefined
      3DPMicro
      last edited by

      Is it possible to create a series of commands to tell the machine to reduce temp to standby and repeat the previous "x" number of lines of g-code prior to a tool change (possibly at a layer change or elsewhere) ? Ideally with retraction but no E feed. Bare with me. At my work we have a few high $$$ "professional" FDM machines. The filament feeds into the hotends (dual extrusion) which are simply long stainless tubes with the nozzle attached to the end and a heater block clamped to them. There is also no well defined heat break. The operator tells me there is rarely any stringing or oozing. I'm not 100% sure (machine wont run with door open so ya cant stick your head inside to watch) but it appears it is using pressure advance and, I'm just guessing, retracing previous tool path or a specific tool path to unload the nozzle. If we could make something like that work at the same time reducing the temp of the tool we are getting ready to switch from maybe purge towers, buckets, skirts, etc could be eliminated and end up with the dual extrusion quality these machines produce.

      Duet controlled Jet Lathe, scratch built micro mill and 3d printer. 1992 Haas VF2 VMC retrofit

      1 Reply Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators
        last edited by

        There is no firmware facility for doing that at present, but it's something we are looking at for the future.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

        1 Reply Last reply Reply Quote 0
        • First post
          Last post
        Unless otherwise noted, all forum content is licensed under CC-BY-SA