Is this possible? Offset code z height during print
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I am currently using IR sensor and often find that I'd like to lower the z height of the effector just a smidge when starting a print after calibrating.
It's a pain to run the whole calibration process again, wondering if there would be any way to allow for adjusting the z-height on the fly while printing?
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That's what the babystepping facility is for.
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That's what the babystepping facility is for.
Is there a place where i can read up on the babystepping? and how its used in the duet? ( what functions ect. it can be use for? )
i cant find anything about it here: https://duet3d.com/wiki/Duet_Wikiadd a section?
Thanks!
~Russ
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DWC 1.15a and PanelDue firmware both provide babystepping buttons. The underlying gcode command is https://duet3d.com/wiki/G-code#M290:_Baby_stepping.
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ahhh! now that's a feature worthnoting! i tried to find it but my search was "babystepping" instead of "Baby_stepping" I see why i could not find it
I guess ill be reading that entire list of commands
so can we change Just one delta home offset on the fly too??? so like if the bed is unlevel but in the direction of the X motor rail?
humm that would be nice. i normally just move the screw ( i have 3 one at each rail) but this would be done with Baby_stepping??
Thanks David!
~Russ
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Not sure about that Russ, babystepping just offsets the coordinate system in z only. So if you start a print and for whatever reason the z level is too low or too high, whilst you print a skirt or whatever, you can nudge it up/down in 50 micron (by default) nudges, which you could incorporate into your z-probe offset for the next print, so its kind of a rescue and then tuning tool. This might help if you have a slight tilt and a thick first layer to keep the layer within the zone of adhesion, but you can't nudge individual towers.
Edit - but I am fairly sure David could do this f you wanted. That being said if I begin a print, especially a large one, and my autocalibration comes back fairly high (above 0.05) or my skirt doesn't lay down well I cancel it, not much time lost at that point is there?
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The baby stepping command in effect raises or lowers the entire bed. If the bed of your delta is tilted and you want to apply a manual correction, you could use the A and/or B parameter on the M666 command.
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@dc42 thanks as always!
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The baby stepping command in effect raises or lowers the entire bed. If the bed of your delta is tilted and you want to apply a manual correction, you could use the A and/or B parameter on the M666 command.
i find that some times for what ever reason things leaning on way ( going to a rail its high or low) so i have a 3 point leveling system and i just adjust that on the fly…
but can I do this with the M666 on the fly?
if yes, for me its normally a need to change the X/Y/Z, so can i do this on the fly while its printing?
By the way I think this problem comes from the way I have my end stops set up on my old delta....
~Russ
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The M666 XYZ endstop corrections are only used when homing, but the A and B tilt corrections are used all the time and can be changed during printing.
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ok, Thanks!!!!
you might want to note that on the Gcode page(s) that's good to know!
~Russ
