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    Homing advice

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      Did you copy and paste my homing files into yours?

      And just to confirm...
      Is the X endstop on the left or right?
      Is the Y endstop at the front or back?

      Z-Bot CoreXY Build | Thingiverse Profile

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      • agent0810undefined
        agent0810
        last edited by

        yes sir, copied and pasted.

        The Y is in the back right corner.
        The x is on the right,

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by Phaedrux

          @Phaedrux said in Homing advice:

          M574 X2 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y2 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop

          And you changed M574 to X2 and Y2?

          Z-Bot CoreXY Build | Thingiverse Profile

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          • agent0810undefined
            agent0810
            last edited by

            yes sir copied all 3 homing files and pasted over mine.

            ; Endstops
            M574 X2 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
            M574 Y2 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
            M574 Z2 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              Alright, then we may need to change a motor direction.

              ; Drives
              M569 P0 S1 ; physical drive 0 goes forwards
              M569 P1 S1 ; physical drive 1 goes forwards
              

              Try

              M569 P0 S0
              M569 P1 S0

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              • agent0810undefined
                agent0810
                last edited by

                That may have done it.

                X+ Moves to the right !!!!!!
                Y+ Moves to the Back!!!!
                Z+ Moves up!!!!!

                so after i home, the "position tool" says its X - 225.0, Y 225.0, Z - 300.00 thats what i want right?

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                • Phaedruxundefined
                  Phaedrux Moderator @agent0810
                  last edited by

                  @agent0810 said in Homing advice:

                  X - 225.0, Y 225.0, Z - 300.00

                  Are those negative values?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • agent0810undefined
                    agent0810
                    last edited by

                    no dashes,

                    Status
                    Printing
                    Mode: FFF
                    Tool Position
                    X
                    225.0
                    Y
                    225.0
                    Z
                    300.00

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                    • Phaedruxundefined
                      Phaedrux Moderator
                      last edited by

                      The last thing to check is that when you move to 0,0 it's at the corner of the bed. If it's not, then you'll have to adjust the M208 maxima values.

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • agent0810undefined
                        agent0810
                        last edited by

                        so when i "home all" it sends it to the back right corner. when i got to 0,0 it goes to the front left corner. when i try to start a print, it starts in the back right corner, bangs against the stops then the bed starts to lower all the way.

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          What do you have in your start gcode?

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                          • agent0810undefined
                            agent0810
                            last edited by

                            Here is the start:

                            ;FLAVOR:Marlin
                            ;TIME:336
                            ;Filament used: 0.10025m
                            ;Layer height: 0.2
                            ;MINX:89
                            ;MINY:95
                            ;MINZ:0.2
                            ;MAXX:131
                            ;MAXY:125
                            ;MAXZ:14.8
                            ;Generated with Cura_SteamEngine 4.6.1
                            M140 S60
                            M105
                            M190 S60
                            M104 S230
                            M105
                            M109 S230
                            M82 ;absolute extrusion mode
                            M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
                            M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
                            M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
                            M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
                            M220 S100 ;Reset Feedrate
                            M221 S100 ;Reset Flowrate

                            G28 ;Home

                            G92 E0 ;Reset Extruder
                            G1 Z2.0 F3000 ;Move Z Axis up
                            G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
                            G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
                            G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
                            G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
                            G92 E0 ;Reset Extruder
                            G1 Z2.0 F3000 ;Move Z Axis up

                            G92 E0
                            G92 E0
                            G1 F5100 E-7
                            ;LAYER_COUNT:86
                            ;LAYER:0
                            M107

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                            • Phaedruxundefined
                              Phaedrux Moderator @agent0810
                              last edited by

                              @agent0810 said in Homing advice:

                              M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
                              M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
                              M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
                              M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk

                              Unrelated, but delete those lines from your slicer start gcode section in Cura.

                              I don't see a G90 in there to make sure you're in absolute positioning mode.

                              Does it do the prime line correctly or does it just start crashing?

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                              • agent0810undefined
                                agent0810
                                last edited by

                                just starts crashing.

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                                • agent0810undefined
                                  agent0810
                                  last edited by

                                  Here are my machine settings in cura......do the print head settings look okay?

                                  12f09a3e-7f69-4ab0-b374-74f55500407b-image.png

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                                  • Phaedruxundefined
                                    Phaedrux Moderator
                                    last edited by

                                    Change the Gcode flavor to RepRap.

                                    Can you share an actual sliced gcode file?

                                    Z-Bot CoreXY Build | Thingiverse Profile

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                                    • agent0810undefined
                                      agent0810
                                      last edited by

                                      yea let me see what i can get. should i just place G90 in before the G92? googled it and didnt see an actual setting for it in cura but someone said they just put it in the start code.

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                                      • Phaedruxundefined
                                        Phaedrux Moderator
                                        last edited by

                                        Well I'd like to see the full sliced gcode first to see what it's actually got inserted where.

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                                        • agent0810undefined
                                          agent0810
                                          last edited by

                                          I think this is what you are looking for.

                                          base_x.gcode

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                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by

                                            Ok, try changing your start gcode to be

                                            M220 S100 ;Reset Feedrate
                                            M221 S100 ;Reset Flowrate
                                            
                                            G28 ;Home
                                            G90 ; absolute positioning.
                                            
                                            G92 E0 ;Reset Extruder
                                            G1 Z2.0 F3000 ;Move Z Axis up
                                            G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
                                            G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
                                            G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
                                            G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
                                            G92 E0 ;Reset Extruder
                                            G1 Z2.0 F3000 ;Move Z Axis up
                                            
                                            G92 E0
                                            G92 E0
                                            G1 F5100 E-7
                                            

                                            The other question I have is about your Z probe. Currently you are homing to the Z max position with an endstop. Do you also have a probe installed? Is your Z axis moving correctly?

                                            Z-Bot CoreXY Build | Thingiverse Profile

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