Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    G30 Insufficient Axes Homed For Bed Probing

    Scheduled Pinned Locked Moved
    General Discussion
    5
    79
    4.0k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Steve Lynchundefined
      Steve Lynch
      last edited by

      Dang it! Can ya' throw me a bone? What is it that is causing the error... It seems to be in relation to the first set of moves... this block of moves

      ;G1 S1 X-300 Y-300 F10000 ;move quickly to X or Y endstop and stop there (first pass)
      G1 S1 X-300 F10000 ;Now do a fast move just on X and detect end stop
      G1 S1 Y-300 F10000 ;Likewise Y

      as soon as the gantry starts moving, it errors... But I do not see any G28 reference in there, or G30 at this stage of the Gcode.... is it right in front of me?

      deckingmanundefined 1 Reply Last reply Reply Quote 0
      • deckingmanundefined
        deckingman @Steve Lynch
        last edited by

        @steve-lynch What;s teh error message exactly? And did you put that S2 in the second G1 Z move?

        Ian
        https://somei3deas.wordpress.com/
        https://www.youtube.com/@deckingman

        1 Reply Last reply Reply Quote 0
        • Steve Lynchundefined
          Steve Lynch
          last edited by

          G28! (in a little exclaimation Triangle) then below it it says G30 insufficient homing for bed probing

          uncommented fthat line, and added S2 to the second Z5...

          G91 ; relative positioning
          G1 Z5 F6000 S2 ; lift Z relative to current position
          M401 ;deploy mechanical z probe
          G1 S1 X-300 Y-300 F10000 ;move quickly to X or Y endstop and stop there (first pass)
          G1 S1 X-300 F10000 ;Now do a fast move just on X and detect end stop
          G1 S1 Y-300 F10000 ;Likewise Y

          G1 X5 Y5 F6000 ;go back a few mm

          G1 S1 X50 F360 ;move slowly to X axis endstop once more (second pass)
          G1 S1 Y50 ;then move slowly to Y axis endstop

          G1 S2 Z5 F6000 ;lift Z relative to current position
          G90 ;absolute positioning
          G1 X190 Y150 F6000 ;go to first probe point
          G30 ;home Z by probing the bed

          ; Uncomment the following lines to lift Z after probing
          G91 ;relative positioning
          G1 Z5 F100 ;lift Z relative to current position
          G90 ;absolute positioning

          M402 ;retract mechanical Z probe

          Phaedruxundefined 1 Reply Last reply Reply Quote 0
          • Phaedruxundefined
            Phaedrux Moderator @Steve Lynch
            last edited by Phaedrux

            @steve-lynch said in G30 Insufficient Axes Homed For Bed Probing:

            G1 S1 X50 F360 ;move slowly to X axis endstop once more (second pass)
            G1 S1 Y50 ;then move slowly to Y axis endstop

            These need to be negative moves again to go back towards the endstop.

            And if you're using the BLTouch, just remove these entirely. M401 ;deploy mechanical z probe and M402 ;retract mechanical Z probe. They are not needed. The probe pin will deploy automatically with G30. Deploying it before your other moves risks it either hitting the bed and causing an error, or getting caught on something and breaking.

            Z-Bot CoreXY Build | Thingiverse Profile

            1 Reply Last reply Reply Quote 0
            • Steve Lynchundefined
              Steve Lynch
              last edited by

              Yeah, That's what I thought.. DC42 Told me to put them back in... I didn't specify what Build I was on... I read that that is handled by Type 9 probe now. Cool!
              Thanks!

              1 Reply Last reply Reply Quote 0
              • Steve Lynchundefined
                Steve Lynch
                last edited by

                UGH! Still! G30 Insufficient Axes Homed for Bed probing!

                we trim more and more off each go-round, but still we do not kill the error!

                Phaedruxundefined 1 Reply Last reply Reply Quote 0
                • Phaedruxundefined
                  Phaedrux Moderator @Steve Lynch
                  last edited by

                  @steve-lynch can you post your homeall one more time?

                  Z-Bot CoreXY Build | Thingiverse Profile

                  deckingmanundefined 1 Reply Last reply Reply Quote 0
                  • deckingmanundefined
                    deckingman @Phaedrux
                    last edited by deckingman

                    @phaedrux said in G30 Insufficient Axes Homed For Bed Probing:

                    @steve-lynch can you post your homeall one more time?

                    @Steve-Lynch That - and also your deploy probe and retract probe macros - there could be a move in there that needs an S2

                    EDIT. Inore that - you aren't now using them

                    Ian
                    https://somei3deas.wordpress.com/
                    https://www.youtube.com/@deckingman

                    1 Reply Last reply Reply Quote 0
                    • Steve Lynchundefined
                      Steve Lynch
                      last edited by

                      G91 ; relative positioning
                      G1 Z5 F6000 S2 ; lift Z relative to current position
                      G1 S1 X-300 Y-300 F10000 ;move quickly to X or Y endstop and stop there (first pass)
                      G1 S1 X-300 F10000 ;Now do a fast move just on X and detect end stop
                      G1 S1 Y-300 F10000 ;Likewise Y

                      G1 X5 Y5 F6000 ;go back a few mm

                      G1 S1 X-300 F360 ;move slowly to X axis endstop once more (second pass)
                      G1 S1 Y-300 ;then move slowly to Y axis endstop

                      G1 S2 Z5 F6000 ;lift Z relative to current position
                      G90 ;absolute positioning
                      G1 X190 Y150 F6000 ;go to first probe point
                      G30 ;home Z by probing the bed

                      ; Uncomment the following lines to lift Z after probing
                      G91 ;relative positioning
                      G1 Z5 F100 ;lift Z relative to current position
                      G90 ;absolute positioning

                      1 Reply Last reply Reply Quote 0
                      • Steve Lynchundefined
                        Steve Lynch
                        last edited by

                        I posted the deploy and retract above.. they're really short...

                        deploy just contains M280 P3 S10 I1

                        retract contains: M280 P3 S90 I1

                        1 Reply Last reply Reply Quote 0
                        • Steve Lynchundefined
                          Steve Lynch
                          last edited by

                          Honestly, the more we cull from the Homeall.g, the more I see just how much unnecessary, redundant, and counter intuitive stuff I had going on there... It's like the file was fighting against itself.. lol

                          1 Reply Last reply Reply Quote 0
                          • Phaedruxundefined
                            Phaedrux Moderator
                            last edited by

                            Can you confirm that when you hit home all the X and Y axis start moving towards the endstops and actually hit them?

                            You can remove the second Z lift as well. It's already lifted once at the start of the file, so no need to raise it again. This one before the G90. Though it shouldn't be causing the problem.

                            G1 S2 Z5 F6000 ;lift Z relative to current position
                            G90 ;absolute positioning

                            Z-Bot CoreXY Build | Thingiverse Profile

                            Steve Lynchundefined 1 Reply Last reply Reply Quote 0
                            • deckingmanundefined
                              deckingman
                              last edited by

                              Try again stepping through the file one line at a time by copying and pasting each line exactly as you you have it in the homeall file, into the console. But before you do that, cycle the power so that you start with all axes un - homed. If you look at the "Machine Control" tab, you start with all the axes highlighted in yellow. So switch to the console, enter the first commend, then switch back to the Machine Control tab. Then repeat for the next command in your homeall file. Every time an axis homes successfully, (i.e. an endstop triggers when the move has an S1 command) each one will change from yellow to blue. At the end of the sequence, they should all be blue. If not, where did it go tits up?

                              Ian
                              https://somei3deas.wordpress.com/
                              https://www.youtube.com/@deckingman

                              1 Reply Last reply Reply Quote 0
                              • Steve Lynchundefined
                                Steve Lynch @Phaedrux
                                last edited by

                                @phaedrux yes, they physically hit the end stops, at which time they clear the "not homed" status.

                                X, Y, and Z

                                1 Reply Last reply Reply Quote 0
                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by

                                  Yes when X and Y hit the endstops they should be marked as homed, that is correct. Are you saying they also mark the Z axis as homed?

                                  Can you post your config.g file so we can see what your endstops are configured as?

                                  Z-Bot CoreXY Build | Thingiverse Profile

                                  1 Reply Last reply Reply Quote 0
                                  • Steve Lynchundefined
                                    Steve Lynch
                                    last edited by

                                    it looks like the very first G1 Z5 F6000 S2 is the culprit

                                    deckingmanundefined 1 Reply Last reply Reply Quote 0
                                    • Steve Lynchundefined
                                      Steve Lynch
                                      last edited by

                                      excerpt from my config.g

                                      ; Axis Limits
                                      M208 X-8:300 Y0:300 ;Set Axis Limits

                                      ; Endstops
                                      M574 X1 Y0 S1 ; Set active low and disabled endstops
                                      M591 D0 P1 C3 S0

                                      ; Z-Probe
                                      M574 Z0 S2 ; Set endstops controlled by probe
                                      M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
                                      M558 P9 H5 F120 T9000 ; Set Z probe type to bltouch and the dive height + speeds
                                      G31 P500 X-39 R0.2 Y0 A3 Z1.34 ; Set Z probe trigger value, offset and trigger height
                                      M557 X50:230 Y10:270 S50 ; Define mesh grid

                                      Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                      • Steve Lynchundefined
                                        Steve Lynch
                                        last edited by

                                        should the Y axis be negative here as well? Or is the end stop establishing "Hard Zero"?

                                        1 Reply Last reply Reply Quote 0
                                        • Steve Lynchundefined
                                          Steve Lynch
                                          last edited by

                                          OK, didn't I read that Z cannot make a move without Homing the other exes first? I had the comment to allow moves before homing, but I was told to remove that. S2 denotes a move ignoring limits though, correct?

                                          1 Reply Last reply Reply Quote 0
                                          • deckingmanundefined
                                            deckingman @Steve Lynch
                                            last edited by deckingman

                                            @steve-lynch said in G30 Insufficient Axes Homed For Bed Probing:

                                            it looks like the very first G1 Z5 F6000 S2 is the culprit

                                            Why do you think that? What happens? What should happen is that the bed moves 5mm away from the nozzle and nothing else. You shouldn't get an error message. The homing state won't change because of the S2 parameter. If you do get an error message at this point, try deleting that line and re-typing it, just in case there is a hidden character or some such that is screwing things up.

                                            OK, didn't I read that Z cannot make a move without Homing the other exes first? I had the comment to allow moves before homing, but I was told to remove that. S2 denotes a move ignoring limits though, correct?

                                            You can move Z if you include the S2 parameter. S2 ignores end stop detection.

                                            M574 X1 Y0 S1 ; Set active low and disabled endstops

                                            This looks odd.

                                            Ian
                                            https://somei3deas.wordpress.com/
                                            https://www.youtube.com/@deckingman

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Unless otherwise noted, all forum content is licensed under CC-BY-SA