Ultimaker 3 compatibility

[sstepane]

Hello,

Is Arc Welder works well with Ultimaker 3? If so - what should be default settings used?
Thanks!

[FormerLurker]

The default settings should be good depending on how the firmware handles arc commands. I would recommend trying to print something small, like a benchy, to verify that ultimaker firmware can handle arcs. Im not sure if their firmware is open or closed source, but if you can point me to the source code, I would be happy to take a look!

[seantapscott]

It doesn't handle arc commands well last time I tried on UM3. Limited value as well as the compression of the gcode files isn't really necessary. I searched around and found this, which appears to be the official source code of the UM3 marlin branch. I think It's very custom, but I can't actually tell. https://github.com/Ultimaker/UltimakerMarlin/tree/Ultimaker3

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On Sun, May 1, 2022 at 12:13 PM FormerLurker ***@***.***> wrote: The default settings should be good depending on how the firmware handles arc commands. I would recommend trying to print something small, like a benchy, to verify that ultimaker firmware can handle arcs. Im not sure if their firmware is open or closed source, but if you can point me to the source code, I would be happy to take a look! — Reply to this email directly, view it on GitHub <#231 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AE5J4UCBC36UOTUPXJZAWD3VH2USTANCNFSM5UZ23NCQ> . You are receiving this because you are subscribed to this thread.Message ID: <FormerLurker/ArcWelderPlugin/repo-discussions/231/comments/2669657@ github.com>

[FormerLurker]

Thanks for the link! It is using the old marlin 1 algorithm that only uses mm_per_arc_segment. It is set to 1mm, which will produce flat edges for very small arcs. With firmware compensation enabled, it should work ok, but not as good as firmware with better arc support.

[seantapscott]

Yeah, I feel like that might not be what they're actually using, as the number of extruders is set to 1, which is very false, as UM3 is, by default, a dual extruder machine. Anyway, it still might relevant to arcs, as their marlin implementation is old.

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On Sun, May 1, 2022 at 12:33 PM FormerLurker ***@***.***> wrote: Thanks for the link! It is using the old marlin 1 algorithm that only uses mm_per_arc_segment. It is set to 1mm, which will produce flat edges for very small arcs. With firmware compensation enabled, it should work ok, but not as good as firmware with better arc support. — Reply to this email directly, view it on GitHub <#231 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AE5J4UDDM4YIKYNQW7AMD6TVH2W5LANCNFSM5UZ23NCQ> . You are receiving this because you commented.Message ID: ***@***.*** .com>