Reference switch not at limit possible?
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@DaBit said in Reference switch not at limit possible?:
Is it the G92 that flags the axis as homed when executed? In that case, would starting with an M208 X18:264 and execute an M208 X0:264 after the G1 H1 be a better solution?
Yes and yes.
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@deckingman said in Reference switch not at limit possible?:
BTW, once the machine has been homed, the firmware will respect the axis limits that you define in M208. So if you try to move outside those limits once the machine has been homes, it won't do it.
Not always the case. Despite there being a gcode switch to put the printer in delta mode the limits on occasion are ignored, I believe for delta calibration. I think comands ran by g32 from bed.g are an example of this.
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@DocTrucker said in Reference switch not at limit possible?:
@deckingman said in Reference switch not at limit possible?:
BTW, once the machine has been homed, the firmware will respect the axis limits that you define in M208. So if you try to move outside those limits once the machine has been homes, it won't do it.
Not always the case. Despite there being a gcode switch to put the printer in delta mode the limits on occasion are ignored, I believe for delta calibration. I think comands ran by g32 from bed.g are an example of this.
Correct, the coordinates you put in G30 commands in bed.g are allowed to be outside the printable area.
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@dc42 said in Reference switch not at limit possible?:
Correct, the coordinates you put in G30 commands in bed.g are allowed to be outside the printable area.
Is there already some way of handling printable area vs machine limits? Is it already on the wish list? Nozzle wipes and filament dumps for example may be beyond the area that gcode commands in a build should take you to, but accessible by macro or flagged G1.
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Hi,
M564 can be used to allow moves beyond the min/max limits.
Perhaps two sets of min/max limits could be implemented.
One set for the print area and the other for the absolute limits.
Frederick
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@fcwilt with the M564 and the switch for delta mode I'm not sure why delta calibration needed to bend the rules. Perhaps M564 came after delta calibration.