Solved Define the mesh size and spacing
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I try to understand the mesh size and spacing. I set it to the values for y from 0 to 190. My probe is -28 mm from the nozzle so need to adjust the aeria. As in the picture below you can see the y value of the printer is at 203 and thereby bigger as defined in the aeria of 0-190. What am I doing wrong?
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@frankv said in Define the mesh size and spacing:
@fcwilt By checking your settings I think I made a mistake with the placement of my offset for the probe. My probe is behind my hotend. So the offset is not -23 but needs to be +23? Y is moving from home 210 to zero at the front of the printer.
Well if the Y offset is +23 then just use Y5:187.
Frederick
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Hi,
Need more info:
- what are your M208 settings?
- what are you probe X and Y offset settings?
Frederick
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@fcwilt ;
Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X204 Y210 Z238 S0 ; set axis maximaG31 P500 X0 Y-23 Z1.558 ; set Z probe trigger value, offset and trigger height
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@frankv said in Define the mesh size and spacing:
@fcwilt ;
Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X204 Y210 Z238 S0 ; set axis maximaG31 P500 X0 Y-23 Z1.558 ; set Z probe trigger value, offset and trigger height
OK this should work:
M557 X5:199 Y28:210 P20:20
The X parameter simply sets the X range of the grid 10mm less than the X axis range to keep the probe tip away from the very edges of the bed.
The Y parameter cannot do the same as you have to adjust for the Y offset of the probe. So the probe can reach Y=5 but can only reach to Y=187.
The P parameter determines the number of grid points in X and Y, so P20:20 is 400 points total. You can of course pick any numbers you like. Using P is easier than using S as the firmware does that math to distribute the points evenly over the X and Y ranges.
Frederick
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@fcwilt By checking your settings I think I made a mistake with the placement of my offset for the probe. My probe is behind my hotend. So the offset is not -23 but needs to be +23? Y is moving from home 210 to zero at the front of the printer.
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@frankv said in Define the mesh size and spacing:
@fcwilt By checking your settings I think I made a mistake with the placement of my offset for the probe. My probe is behind my hotend. So the offset is not -23 but needs to be +23? Y is moving from home 210 to zero at the front of the printer.
Well if the Y offset is +23 then just use Y5:187.
Frederick
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@fcwilt Thanks for your help
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