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    • OwenDundefined
      OwenD @RatRig0331
      last edited by

      @ratrig0331
      You need to put this line in config.g in place of your normal M557

      M98 P"0:/sys/setDefaultProbePoints.g"

      Then set all your default probe settings in the areas at the start of the macro.

      In superslicer put all the code provided in your start gcode

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      • dc42undefined
        dc42 administrators @OwenD
        last edited by dc42

        @owend said in Only probe where the part will be printed:

        set global.minProbeX = {first_layer_print_min[0]} 
        set global.maxProbeX = {first_layer_print_max[0]} 
        set global.minProbeY = {first_layer_print_min[1]} 
        set global.maxProbeY = {first_layer_print_max[1]}
        T[current_extruder] ; select tool
        M568 P[current_extruder] R{"{heat.coldExtrudeTemperature+5}"} S[first_layer_temperature_0] A1 ; (set extruder to stanby to soften any protruding filament before probing )
        M106 P[current_extruder] S0 ;Start with fan off    
        

        You appear to be using a mixture of { } and [ ] to surround named values that you want PrusaSlicer to substitute for. Which is correct?

        Duet 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

        OwenDundefined 1 Reply Last reply Reply Quote 0
        • OwenDundefined
          OwenD @dc42
          last edited by OwenD

          @dc42
          The square brackets are legacy place holders, so should probably be replaced by curly brackets.
          I just tried changing them all to curly brackets.
          However in Superslicer at least, [first_layer_temperature_0] only seems to work with a square bracket.

          EDIT
          It seems things like [first_layer_temperature_0] have been replaced by {first_layer_temperature[0]}

          I've revised the start Gcode related to probing to this (there are of course other commands need in the start code)

          set global.minProbeX = {first_layer_print_min[0]}
          set global.maxProbeX = {first_layer_print_max[0]}
          set global.minProbeY = {first_layer_print_min[1]}
          set global.maxProbeY = {first_layer_print_max[1]}
          T{current_extruder} ; select tool 1
          M568 P{current_extruder} R{"{heat.coldExtrudeTemperature+5}"} S{first_layer_temperature[current_extruder]} A1 ; (set extruder to stanby to soften any protruding filament before probing )
          M106 P{current_extruder} S0 ;Start with fan off
          M140 S{first_layer_bed_temperature[current_extruder]}  R{bed_temperature[0]-20}; Set fast bed temp & standby - Standby is 20 degrees less than normal.
          M116 ; Wait for bed before doing mesh probe.
          M561 ; clear any bed transform
          G29 ; do mesh for printed area
          G29 S1  ; load small mesh
          G01 X0 Y{"{move.axes{1}.max}"} Z0.6  F1500 ; Move to back corner while heating
          M568 P{current_extruder} R{"{heat.coldExtrudeTemperature+5}"} S{first_layer_temperature[current_extruder]} A2 ; (set standby and active temperatures for active tool.  Standby is 5 degrees above cold extrude temp )
          M116 ; Wait for all temps to stabilise
          
          RatRig0331undefined 1 Reply Last reply Reply Quote 0
          • RatRig0331undefined
            RatRig0331 @OwenD
            last edited by

            @owend when I restart I get this

            Error: (sensors.probes[0].offsets[0] + var.SafeZone)array index out of bounds of setDefaultProbePoints.g

            And if I try to start a print I get this

            Error: unknown variable 'global.minProbeX'

            dc42undefined OwenDundefined 2 Replies Last reply Reply Quote 0
            • dc42undefined
              dc42 administrators @RatRig0331
              last edited by

              @ratrig0331 have you opened the GCode file in a text editor, to see what the slicer has actually generated?

              Duet 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

              RatRig0331undefined 2 Replies Last reply Reply Quote 0
              • RatRig0331undefined
                RatRig0331 @dc42
                last edited by

                @dc42 not yet I’ll take a look

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                • RatRig0331undefined
                  RatRig0331 @dc42
                  last edited by

                  @dc42 it looks like its all there in the gcode

                  ; external perimeters extrusion width = 0.40mm
                  ; perimeters extrusion width = 0.40mm
                  ; infill extrusion width = 0.40mm
                  ; solid infill extrusion width = 0.40mm
                  ; top infill extrusion width = 0.40mm
                  ; first layer extrusion width = 0.45mm

                  M73 P0 R8
                  M107
                  M104 S205 ; set temperature
                  ;TYPE:Custom
                  set global.minProbeX = 183.982
                  set global.maxProbeX = 316.018
                  set global.minProbeY = 188.982
                  set global.maxProbeY = 311.018
                  T0 ; select tool 1
                  M568 P0 R{heat.coldExtrudeTemperature+5} S205 A1 ; (set extruder to stanby to soften any protruding filament before probing )
                  M106 P0 S0 ;Start with fan off
                  M140 S68 R45; Set fast bed temp & standby - Standby is 20 degrees less than normal.
                  M116 ; Wait for bed before doing mesh probe.
                  M561 ; clear any bed transform
                  G29 ; do mesh for printed area
                  G29 S1 ; load small mesh
                  G01 X0 Y{move.axes{1}.max} Z0.6 F1500 ; Move to back corner while heating
                  M568 P0 R{heat.coldExtrudeTemperature+5} S205 A2 ; (set standby and active temperatures for active tool. Standby is 5 degrees above cold extrude temp )
                  M116 ; Wait for all temps to stabilise
                  M109 S205 ; set temperature and wait for it to be reached
                  G21 ; set units to millimeters
                  G90 ; use absolute coordinates
                  M83 ; use relative distances for extrusion
                  ; Filament gcode
                  SET_GCODE_OFFSET Z=0
                  SET_PRESSURE_ADVANCE ADVANCE=0.05
                  M107
                  ;LAYER_CHANGE
                  ;Z:0.2
                  ;HEIGHT:0.2
                  ;BEFORE_LAYER_CHANGE
                  ;0.2
                  G92 E0
                  ;

                  this is what i changed in the mesh.g for my 500x500mm xycore

                  ;0:/sys/mesh.g
                  ; run when G29 with no paramters is called.
                  ; if this file not found G29 S0 will run
                  var m557MinX = 25; ; put your default here
                  var m557MaxX = 450; ; put your default here
                  var m557MinY = 25; ; put your default here
                  var m557MaxY = 450; ; put your default here
                  var MinSpace = 10 ; put default minimum spacing
                  var MaxSpace = 30 ; put default maximum spacing
                  var ProbeNumX = 8 ; put default probe points
                  var ProbeNumY = 8 ; put default probe points.
                  var ProbeCenterX = 285 ; will be updated to probe centre of print
                  var ProbeCenterY = 270 ; will be updated to probe centre of print

                  var MaxProbePoints = max(floor(move.axes[0].max / var.MaxSpace),floor(move.axes[1].max / var.MaxSpace)) ; maximum points in either axis

                  echo "Maximum allowed probe points is " ^ var.MaxProbePoints ^ " using max space of " ^ var.MaxSpace
                  var SafeZone = 3 ; safety margin for probing near edge.

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                  • OwenDundefined
                    OwenD @RatRig0331
                    last edited by OwenD

                    @ratrig0331
                    Sounds like it's not finding a sensors.probe[0] when you run the initial setup from config.g
                    As that line is at the start of the macro, it never gets to the lines that set the global variables up.
                    Make sure your probe is configured before calling the macro.
                    Maybe post you config.g so we can see how your probe(s) are configured

                    RatRig0331undefined 3 Replies Last reply Reply Quote 0
                    • RatRig0331undefined
                      RatRig0331 @OwenD
                      last edited by

                      @owend

                      ​
                      ;;; BLTouch ;;;
                      M950 S0 C"io2.out" ; Create a servo pin on io2
                      M558 P9 C"io2.in" H5 F240 T10800 A5 ; set Z probe type to unmodulated and the dive height + speeds
                      G31 P25 X-29.00 Y-2.00 Z2.471

                      OwenDundefined 1 Reply Last reply Reply Quote 0
                      • RatRig0331undefined
                        RatRig0331 @OwenD
                        last edited by

                        @owend

                        ​

                        ;;; Endstops ;;;
                        M574 X1 S1 P"io1.in" ; configure active high endstops
                        M574 Y2 S1 P"io0.in" ; configure active high endstops
                        M574 Z1 S2

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                        • OwenDundefined
                          OwenD @RatRig0331
                          last edited by

                          @ratrig0331
                          Make sure
                          M98 P"0:/sys/setDefaultProbePoints.g"
                          Comes after your G31 in your BlTouch section

                          RatRig0331undefined 3 Replies Last reply Reply Quote 0
                          • RatRig0331undefined
                            RatRig0331 @OwenD
                            last edited by

                            @owend ok I’ll move it and give it a shot

                            1 Reply Last reply Reply Quote 0
                            • RatRig0331undefined
                              RatRig0331 @OwenD
                              last edited by

                              @owend that did the trick but now i need to turn down the amount of probe points
                              var MinSpace = 10 ; put default minimum spacing
                              var MaxSpace = 30 ; put default maximum spacing
                              var ProbeNumX = 8 ; put default probe points
                              var ProbeNumY = 8 ; put default probe points.
                              var ProbeCenterX = 285 ; will be updated to probe centre of print
                              var ProbeCenterY = 270 ; will be updated to probe centre of print

                              with my 100x100mm print its trying to do a 13x13 grid what do i tweak to lower that?

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                              • RatRig0331undefined
                                RatRig0331 @OwenD
                                last edited by

                                @owend ok after letting it 100% there were more errors

                                8/14/2022, 10:15:03 PM Error: M557: bad grid definition: Spacing too small
                                8/14/2022, 10:14:19 PM Error: in GCode file line 773: G1: expected '}'

                                line 773 is your
                                G01 X0 Y{move.axes{1}.max} Z0.6 F1500 ; Move to back corner while heating

                                OwenDundefined 1 Reply Last reply Reply Quote 0
                                • OwenDundefined
                                  OwenD @RatRig0331
                                  last edited by OwenD

                                  @ratrig0331
                                  Change your minSpace and maxSpace in the macro to reduce number of probe points
                                  Try 50 & 100

                                  The G1 is my bad
                                  I did a search and replace when I was changing the braces, but changed one that should remain a square bracket

                                  Change this line in superslicer
                                  G01 X0 Y{"{move.axes{1}.max}"} Z0.6 F1500 ; Move to back corner while heating
                                  To
                                  G01 X0 Y{"{move.axes[1].max}"} Z0.6 F1500 ; Move to back corner while heating

                                  Or delete the line if you don't want to move there while heating

                                  RatRig0331undefined 1 Reply Last reply Reply Quote 0
                                  • RatRig0331undefined
                                    RatRig0331 @OwenD
                                    last edited by

                                    @owend

                                    One down one to go I’m still getting the m557 error with the 50/100 spacing will this be normal a normal error from down sizing the bed mesh or is there a fix

                                    Error: M557: bad grid definition: Spacing too small

                                    ——-Error: in GCode file line 773: G1: expected '}'———- is now fixed

                                    jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                                    • jay_s_ukundefined
                                      jay_s_uk @RatRig0331
                                      last edited by

                                      @ratrig0331 the most probe points you can have on a duet 2 are 121 and on a duet 3 are 441

                                      Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                      RatRig0331undefined 1 Reply Last reply Reply Quote 0
                                      • RatRig0331undefined
                                        RatRig0331 @jay_s_uk
                                        last edited by

                                        @jay_s_uk too many points isn’t the issue I think, it must be too few points? With the settings first told to me it wanted to do a 13x12 grid on a 100mmx100mm print 156 points total, than I changed the min max to 50/100 and it only probed the middle and 4 conners and gave the same error

                                        OwenDundefined dc42undefined 2 Replies Last reply Reply Quote 0
                                        • OwenDundefined
                                          OwenD @RatRig0331
                                          last edited by OwenD

                                          @ratrig0331

                                          I believe the problem you are having is that I didn't allow for a probe that was offset to the other side of the extruder to mine.

                                          Try these files.
                                          I think it should sort it out.

                                          ;setDefaultProbePoints.g - to be called from config.g after Z probe configuration section and any time defaults need to be reset.
                                          
                                          var SafeZone = 10 ; probing won't be done closer than this amount from bed edge - adjust as required
                                          var defaultProbeSpacing = 50 ; default mesh grid spacing in mm - adjust as required
                                          
                                          ; shouldn't need to edit after here
                                          var MinReachableX = max(0,sensors.probes[0].offsets[0]) + var.SafeZone
                                          var MaxReachabeX = move.axes[0].max - abs(sensors.probes[0].offsets[0]) - var.SafeZone
                                          var MinReachableY =  max(0,sensors.probes[0].offsets[1]) + var.SafeZone
                                          var MaxReachabeY = move.axes[1].max - abs(sensors.probes[0].offsets[1]) - var.SafeZone
                                          
                                          M557 X{var.MinReachableX,var.MaxReachabeX} Y{var.MinReachableY,var.MaxReachabeY} S{var.defaultProbeSpacing}; define mesh grid
                                          ;echo "M557 X"^{var.MinReachableX}^","^{var.MaxReachabeX}, "Y"^{var.MinReachableY}^","^{var.MaxReachabeY}, "S"^{var.defaultProbeSpacing}
                                          if !exists(global.minProbeX)
                                          	global minProbeX = move.compensation.probeGrid.mins[0]
                                          else
                                          	set global.minProbeX = move.compensation.probeGrid.mins[0]
                                          
                                          if !exists(global.minProbeY)
                                          	global minProbeY = move.compensation.probeGrid.mins[1]
                                          else
                                          	set global.minProbeY = move.compensation.probeGrid.mins[1]
                                          
                                          if !exists(global.maxProbeX)
                                          	global maxProbeX = move.compensation.probeGrid.maxs[0]
                                          else
                                          	set global.maxProbeX = move.compensation.probeGrid.maxs[0]
                                          
                                          if !exists(global.maxProbeY)
                                          	global maxProbeY = move.compensation.probeGrid.maxs[1]
                                          else
                                          	set global.maxProbeX = move.compensation.probeGrid.maxs[1]
                                          
                                          

                                          revised mesh.g

                                          ;0:/sys/mesh.g
                                          ; run when G29 with no paramters is called.
                                          ; if this file not found G29 S0 will run
                                          var SafeZone = 3 ; safety margin for probing near edge.
                                          var MinSpace = 20 ; put default minimum spacing
                                          var MaxSpace = 60 ; put default maximum spacing
                                          
                                          ; these values are place holders aand will be calculated later
                                          var m557MinX = 40;  ; put your default here
                                          var m557MaxX = 180;  ; put your default here
                                          var m557MinY = 20;  ; put your default here
                                          var m557MaxY = 180;  ; put your default here
                                          var ProbeCenterX = 90 ; will be updated to probe centre of print
                                          var ProbeCenterY = 90 ; will be updated to probe centre of print
                                          var ProbeNumX = 8 ; put default number of probe points
                                          var ProbeNumY = 8 ; put default number probe points.
                                          
                                          
                                          var MaxProbePoints = max(floor(move.axes[0].max / var.MaxSpace),floor(move.axes[1].max / var.MaxSpace)) ; maximum points in either axis
                                          
                                          ;echo "Maximum allowed probe points is " ^ var.MaxProbePoints ^ " using max space of " ^ var.MaxSpace
                                          
                                          
                                          if exists(global.minProbeX)
                                          	if global.minProbeX < max(0,sensors.probes[0].offsets[0]) + var.SafeZone
                                          		echo "minProbeX (" ^ global.minProbeX ^ ") unreachable - reset to " ^ (sensors.probes[0].offsets[0] + var.SafeZone)
                                          		set global.minProbeX = max(0,sensors.probes[0].offsets[0]) + var.SafeZone
                                          	set var.m557MinX = global.minProbeX
                                          
                                          if exists(global.maxProbeX)
                                          	if global.maxProbeX < (global.minProbeX + (var.MinSpace*2))
                                          		set global.maxProbeX = (global.minProbeX + (var.MinSpace*2))
                                          	if global.maxProbeX > (move.axes[0].max - abs(sensors.probes[0].offsets[0]) - var.SafeZone)
                                          		echo "maxProbeX (" ^ global.maxProbeX ^ ") unreachable - reset to " ^ (move.axes[0].max - sensors.probes[0].offsets[0] - var.SafeZone)
                                          		set global.maxProbeX = move.axes[0].max - abs(sensors.probes[0].offsets[0]) - var.SafeZone
                                          	set var.m557MaxX = global.maxProbeX
                                          
                                          if exists(global.minProbeY)
                                          	if global.minProbeY < max(0,sensors.probes[0].offsets[1]) + var.SafeZone
                                          		echo "minProbeY (" ^ global.minProbeY ^ ") unreachable - reset to " ^ (sensors.probes[0].offsets[1] + var.SafeZone)
                                          		set global.minProbeY = max(0,sensors.probes[0].offsets[1]) + var.SafeZone
                                          	set var.m557MinY = global.minProbeY
                                          
                                          
                                          if exists(global.maxProbeY)
                                          	if global.maxProbeY < (global.minProbeY + (var.MinSpace*2))
                                          		set global.maxProbeY = (global.minProbeY + (var.MinSpace*2))
                                          	if global.maxProbeY > (move.axes[1].max - abs(sensors.probes[0].offsets[1]) - var.SafeZone)
                                          		echo "maxProbeY (" ^ global.maxProbeY ^ ") unreachable - reset to " ^ (move.axes[1].max - sensors.probes[0].offsets[1] - var.SafeZone)
                                          		set global.maxProbeY = (move.axes[1].max - abs(sensors.probes[0].offsets[1]) - var.SafeZone)
                                          	set var.m557MaxY = global.maxProbeY
                                          
                                          echo "Probing grid - X" ^ var.m557MinX ^ ":" ^ var.m557MaxX ^ " Y" ^ var.m557MinY ^ ":" ^ var.m557MaxY
                                          
                                          var MinProbesX = floor((var.m557MaxX - var.m557MinX) / var.MaxSpace)
                                          ;echo "Min Probes X is " ^ var.MinProbesX
                                          
                                          var MaxProbesX = floor((var.m557MaxX - var.m557MinX) / var.MinSpace)
                                          ;echo "Max Probes X is " ^ var.MaxProbesX
                                          
                                          set var.ProbeNumX = min(var.MaxProbePoints,var.MaxProbesX)
                                          
                                          var MinProbesY = floor((var.m557MaxY - var.m557MinY) / var.MaxSpace)
                                          ;echo "Min Probes Y is " ^ var.MinProbesY
                                          
                                          var MaxProbesY = floor((var.m557MaxY - var.m557MinY) / var.MinSpace)
                                          ;echo "Max Probes Y is " ^ var.MaxProbesY
                                          
                                          set var.ProbeNumY = min(var.MaxProbePoints,var.MaxProbesY)
                                          
                                          ; sanity check probe points
                                          if var.ProbeNumX<2
                                          	set var.ProbeNumX=2
                                          if var.ProbeNumY<2
                                          	set var.ProbeNumY=2
                                          
                                          if var.ProbeNumX > var.MaxProbePoints
                                          	set var.ProbeNumX = var.MaxProbePoints
                                          
                                          if var.ProbeNumY > var.MaxProbePoints
                                          	set var.ProbeNumY = var.MaxProbePoints
                                          
                                          if (var.ProbeNumX * var.ProbeNumY) > 441
                                          	if var.ProbeNumX > 21
                                          		set var.ProbeNumX = 21
                                          		echo "Too many X points - reduced to 21"
                                          	if var.ProbeNumY > 21
                                          		set var.ProbeNumY = 21
                                          		echo "Too many Y points - reduced to 21"
                                          	
                                          echo "Probing " ^ var.ProbeNumX ^ " points in X direction & " ^ var.ProbeNumY ^ " points in Y direction"
                                          
                                          ;check state of heaters
                                          var bedState = heat.heaters[0].state
                                          var bedActiveTemp = heat.heaters[0].active
                                          var bedStandbyTemp = heat.heaters[0].standby
                                          var nozzleState = heat.heaters[1].state
                                          M140 P0 S-276 ; turn off bed heater
                                          M568 P0 A0 ; turn off nozzle heater
                                          
                                          ; do probing
                                          set var.ProbeCenterX = (global.maxProbeX - ((global.maxProbeX - global.minProbeX)/2)) ; calculate centre point of probe area
                                          set var.ProbeCenterY = (global.maxProbeY - ((global.maxProbeY - global.minProbeY)/2)) ; calculate centre point of probe area
                                          echo "Setting Z datum point at X" ^ var.ProbeCenterX ^ " Y" ^ var.ProbeCenterY
                                          ; set Z = 0 to centre of probe area
                                          G1 X{var.ProbeCenterX- sensors.probes[0].offsets[0]} Y{var.ProbeCenterY- sensors.probes[0].offsets[1]} Z{sensors.probes[0].diveHeight+2} F3600
                                          G30
                                          echo "Mesh probing"
                                          M557 X{var.m557MinX,var.m557MaxX} Y{var.m557MinY,var.m557MaxY} P{var.ProbeNumX,var.ProbeNumY}
                                          if result != 0
                                          	abort "ERROR: could not create mesh" 
                                          else
                                          	G29 S0
                                          	if result != 0
                                          		abort "ERROR: Mesh probing failed"
                                          	else
                                          		echo "Mesh probing successful.   Loading mesh.."
                                          
                                          ; set Z = 0 to centre of probe area
                                          echo "Reset Z datum in mesh centre"
                                          G1 X{var.ProbeCenterX - sensors.probes[0].offsets[0]} Y{var.ProbeCenterY - sensors.probes[0].offsets[1]} Z{sensors.probes[0].diveHeight+2} F3600
                                          G30
                                          
                                          ; turn the heaters back on if needed
                                          if var.bedState != "off"
                                          	M140 S{var.bedActiveTemp} R{var.bedStandbyTemp}
                                          	if var.bedState="active"
                                          		M144 P0 S1 ; put bed on active temp
                                          	else
                                          		M144 P0 S0 ; put bed on standby temp
                                          if var.nozzleState	!= "off"
                                          	if var.nozzleState = "active"
                                          		M568 P0 A2 ; set nozzle to active
                                          	else
                                          		M568 P0 A1 ; set nozzle to standby
                                          
                                          1 Reply Last reply Reply Quote 1
                                          • dc42undefined
                                            dc42 administrators @RatRig0331
                                            last edited by dc42

                                            @ratrig0331 the minimum spacing between points allowed is 0.1mm in each of X and Y. "Spacing too small" means you have tried to specify a smaller spacing than that.

                                            Duet 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

                                            OwenDundefined 1 Reply Last reply Reply Quote 1
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