Retracting and Unretracting with G10/G11
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Hi guys - me again. I'm trying to use firmware retraction in my tool-changing routines and I'm having some inconsistent results that I'm struggling to understand.
Are G10/G11 absolute or relative or something else? Should I be able to - for example - retract twice with two G10's or do I need to have a G11 unretract in there? Would a G92 E0 affect either? Are there any limitations to using them in the post and free scripts? And finally - if I execute a M207 it should have effect in any subsequent G10/G11's, regardless of what tool is selected or not?
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After receiving G10, RRF will ignore another G10 until you do a G11. It will ignore a G11 unless a previous G10 has not already been undone by G11. G92 E0 does not affect G10 or G11.
The M207 parameters apply to subsequent G10/G11 calls when any tool is selected. It is not yet possible to specify M207 parameters on a per-tool basis.
0Duet 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
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@dc42 Thanks for that - I think it explains some of the weirdness - G10/G11 are not tools specific either in this context? If I issue a G10 retract on T0, then select T1 and do a G10, it's not going to do anything until it sees a G11?
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@systemsguy said in Retracting and Unretracting with G10/G11:
@dc42 Thanks for that - I think it explains some of the weirdness - G10/G11 are not tools specific either in this context? If I issue a G10 retract on T0, then select T1 and do a G10, it's not going to do anything until it sees a G11?
It's going to ignore another G10 until it sees a G11.
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Ouch. Is there any thought of being able to make them tool specific? I know there was discussion of making M207 tool specific, which would imply then that the G10/G11 sequencing would be as well?
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@systemsguy said in Retracting and Unretracting with G10/G11:
Ouch. Is there any thought of being able to make them tool specific? I know there was discussion of making M207 tool specific, which would imply then that the G10/G11 sequencing would be as well?
If you can't stop your slicer sending G10 just before doing a tool change, you can put a G11 command in the tfree#.g file to undo it. If it hasn't done a G10 after all, the G11 will be ignored.
0Duet 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
2 Replies
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@dc42 That might work - I'm not sure that "force" repriming the tool is what I want to do, but I need to think about it a bit.
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@dc42 Actually - if I've dropped the tool, but not picked up a new one and issue a G11, what would happen?
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@systemsguy said in Retracting and Unretracting with G10/G11:
@dc42 Actually - if I've dropped the tool, but not picked up a new one and issue a G11, what would happen?
Good question! You might get a "Attempt to extrude with no tool selected" message. If so, I can fix that.
