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    Roadmap for raster clustering

    Laser Cutters
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    • rabbit
      rabbit last edited by

      Re: Velocity Ramping

      Hi,
      Are there any plans when raster clustering will be implemented?
      I have a fairly big CO2 laser with duet3 (sbc). Now I have the issue that greyscale engraving is overloading the raspberry pi.
      Best,

      T3P3Tony o_lampe 2 Replies Last reply Reply Quote 0
      • T3P3Tony
        T3P3Tony administrators @rabbit last edited by

        @rabbit Its on our list to consider (and has been for a while) I can't put a target release on it yet.

        www.duet3d.com

        1 Reply Last reply Reply Quote 0
        • o_lampe
          o_lampe @rabbit last edited by o_lampe

          @rabbit
          I'm using a Raspberry 400 with 4GB Ram on my CO2 laser. I'm using Meerk40t software which is capable of writing a gcode file. I guess, it's much easier to send only gcode lines instead of calculating everything on the fly and send it over?

          It also has an option to run from PC and send life data to a remote server on the Pi. That's probably the smartest way.

          droftarts 1 Reply Last reply Reply Quote 0
          • droftarts
            droftarts administrators @o_lampe last edited by

            @o_lampe raster clustering is described here https://forum.cohesion3d.com/t/improved-raster-speed-firmware-update-for-cohesion3d-boards/850/8
            It's calculated in the laser GCode generation software, and sent to the laser controller in a longer form of G1 command. This allows the controller firmware to use more of it's GCode buffer for look ahead, rather than a lot of individual G1 commands. It's most useful for laser engraving/rastering, rather than cutting.

            From this post, later in the thread https://forum.cohesion3d.com/t/improved-raster-speed-firmware-update-for-cohesion3d-boards/850/13:

            The simple explanation is that you send one G1 move and send one or more S values, separated by colons, to be evenly distributed along the G1 move, like this:
            G1 X0.5 S1:0:0.5:0.75:0:0.2

            From what I understand, it's implemented in Lightburn (software developer @LightBurn is also on the forum here), not sure about other laser control/gcode generation software.

            Ian

            Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

            dc42 1 Reply Last reply Reply Quote 1
            • dc42
              dc42 administrators @droftarts last edited by

              @o_lampe I've added this to the work list for RRF 3.5.

              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 1
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