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Hi all,
I've got a machine I'm working on that is designed to have a super fast feedrate.
Running duet3+rpi4 and two 1hcl boards at the moment, 3.4.1rc2
When running the command G0 Y-600 the machine moves slowly.
Next running the command G1 Y0 F40000 the machine returns to zero much faster.
I have M453 in my config.g so I'm wondering if this has something to do with the motors being closed loop?
I stuck a couple extra M453s in the config and homing files to see if that would help but no...
Attached is a video and my config.g and homey.g (where the tuning happens)
Thanks,
Tristan
config (3).g
homey.g
duet_vid2 (1).mp4 -
undefined Phaedrux moved this topic from Using Duet Controllers 29 May 2022, 17:22
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Did you find a solution to this?
I am having the same issue. My solution has been to ditch CNC mode and run G1 for every move.
What a shame
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@Quadracycle4000 Please post what firmware version you are using (send M115 and post the response), your config.g, and the commands you are sending to replicate the issue. Are you using 1HCL drivers, or other external drivers?
G0 moves should move at the axis limit feedrate in CNC mode. I've done a quick test in CNC mode, using on-board drivers, and G0 moves at the axis limit speed for me, using RRF 3.5.0-rc.2.
Ian
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@droftarts Thanks for your quick response.
I just updated to 3.5 Candidate 2 and it seems to be working normally again! I didn't respond so soon because I realised I still need to use FFF mode for the time being.
-Q