Ir probe



  • As well as the P600 error in your G31 you also need to change Z to a non zero value in your M558 if you want the probe to be used for homing Z. i.e M558 P1 X0 Y0 Z1 …..etc (currently you have M558 P1 X0 Y0 Z0.........)

    Home Z should just have G30. If you add S-1 it won't adjust the Z position.



  • Ok thanks
    As for them M558 z0
    The guid said it should be in the G30 comand that i put my offset in
    G30 x 0 y 0 z 1.5. The 1.5. Is my offset
    Are did i miss read it



  • The offset goes in G31 (not G30) so here you would have Z1.5 (assuming your offset is 1.5mm). In M558 you need to tell the firmware which axes the probe is used for homing. Zero means don't use the probe to home this axis, a non zero value means do use the probe for this axis so you set Z1. See this link. https://duet3d.com/wiki/G-code#M558:_Set_Z_probe_type



  • thank-you your a star



  • hi and thanks for the help so far
    ok ive got all of the above done and
    my code now look like this
    M558 P1 X0 Y0 Z1 H5 F120 T6000 ;
    G31 P500 X30 Y0 Z1.50 ;

    im using a e3d v6 with ir senor sat right in front 30mm on the x axes

    home z looks like this
    G91 ; relative mode
    G1 Z6 F200 ; raise head 6mm to ensure it is above the Z probe trigger height
    G90 ; back to absolute mode
    G1 X0 Y0 F1000 ; put head over the centre of the bed, or wherever you want to probe
    G30 ; lower head, stop when probe triggered and set Z to trigger height

    which all works good im having problems setting up auto bed meshing ive read the right up and its ive not sinking in are not making much scenes for me
    is there any other setup / tutorial out there you would recommend



  • hi new bed.g file does thi look correct

    M561

    ; Probe the bed at 4 points
    G30 P0 X15 Y15 H0 Z-99999
    G30 P1 X15 Y235 H0 Z-99999
    G30 P2 X235 Y235 H0 Z-99999
    G30 P3 X235 Y15 H0 Z-99999 S



  • ok i found out that since i have my ir sencor 30mm in fount of my nozzel and the nozel is set at x0 and y0 with no roo m to move anywhere i have to reset bed.g looking like this
    M561

    ; Probe the bed at 4 points
    G30 P0 X35 Y15 H0 Z-99999
    G30 P1 X35 Y235 H0 Z-99999
    G30 P2 X235 Y235 H0 Z-99999
    G30 P3 X235 Y15 H0 Z-99999 S



  • Ok now i have this set up all i do now is. Home all hit the funny key (wavey line with arrow pionting up the anther one pionting down) let do its
    Thing then print ??



  • @aparkin:

    Ok now i have this set up all i do now is. Home all hit the funny key (wavey line with arrow pionting up the anther one pionting down) let do its
    Thing then print ??

    errrr, don't know where you see that key. Are you using the Web interface or Panel Due? On the web interface, in the Machine Control section, there are buttons clearly labelled (from top to bottom), Home All, Home X, Home Y and Home Z. I don't have a Panel Due so can't comment on how they might be labelled but what you describe with arrows pointing up and down sounds more like the baby stepping feature.



  • Ian the button he is referring to is the Autocal button for a delta and you only see if the Duet is configured as a delta and in that case you dont get the Homex/y/z buttons either.

    Doug



  • No im configured as a coerxy
    And yes its on the pannel due. On the line where home all hone x ..home y..home..z and far left of screen is the auto cail botton

    Yes hitting that botton dose the four piont test ive set up in bed.g
    So is that it done hit home.all ..then auto cal then print
    Are have i missed a step



  • @Dougal1957:

    Ian the button he is referring to is the Autocal button for a delta and you only see if the Duet is configured as a delta and in that case you dont get the Homex/y/z buttons either.

    Doug

    Doug, - didn't know that - you guys with Delta's always have to complicate things :).

    Anyway, it seems our man is sorted.

    Cheers

    Ian



  • Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated



  • Me ? Cardboard



  • @Dougal1957:

    Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated

    Thermopanel or some such name. It's main use is for underfloor heating.


  • administrators

    I use cork sheet.



  • @deckingman:

    @Dougal1957:

    Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated

    Thermopanel or some such name. It's main use is for underfloor heating.

    Is it that green fibrous stuff?

    I have used cork on my existing machine but was looking for any other alternative for the new one?

    Doug



  • @Dougal1957:

    Is it that green fibrous stuff?

    I have used cork on my existing machine but was looking for any other alternative for the new one?

    Doug

    Sort of but it's more rigid. It's a sort of fibres glass mesh sandwich with the green fibre stuff as the filling. I can't find the exact board that I bought but this one looks the same. http://www.theunderfloorheatingstore.com/insulation-boards/electric/prowarm-trade-backer-pro-tile-backer-board. I think when I researched it that the thermal conductivity was much lower than the equivalent thickness of cork. My bed frame is 400mm x 400mm made of 2020 extrusion and I just laid the board on it and put the aluminium tooling plate on top and drilled through the whole lot. Being semi rigid, the insulation doesn't need glueing or anything to prevent it from sagging.

    Apologies to the OP, we seem to have hijacked his thread.

    Ian



  • ok how do i adjust the probe high from bed with out manly moving it i.e i want to make it closer



  • ok how do i adjust the probe high from bed with out manly moving it i.e i want to make it closer

    G31 P600 X0 Y0 Z1.50 ; Set Z probe trigger value, offset and trigger height

    Adjust the Z value


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