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dual extruder robo r 1+

Discussion in 'Projects' started by allen33, Mar 1, 2017.

  1. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Because it thinks it is already HOME (home switches triggered).
     
  2. allen33

    allen33 Member

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    are the home switches the limit switches for the axes?
     
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    There are no limit switches, only home switches :)
    The far "limit" is all calculated. The home is the only position the Arduino "knows"
     
  4. allen33

    allen33 Member

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    ok so I would probably need to invert the setting for them in the firmware to make them only trigger when hit?
     
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    They are N/C I think and go "open" when triggered. On the Z axis (R1 and R1+ only) they need to be inverted, but on the X/Y they are not. Switch triggered = AT HOME. With the Z switch triggered is normal and NOT triggered is home.
     
  6. allen33

    allen33 Member

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    my settings in the firmware match that is it possible that the problem could be elsewhere? Is it possible the problem is that the end switch is wired incorrectly?
     
  7. Geof

    Geof Volunteer Moderator
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    Could be. The switch is normally labeled by the contacts. On the R1/R1+ machines they need to be on the outside prongs, nothing in the middle.
     
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  8. allen33

    allen33 Member

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    does it matter where positive and negative leads are on the outside prongs
     
  9. allen33

    allen33 Member

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    ok so it seems that z works fine but when I go to control x and y it will go in the positive direction but not the negative direction what might cause that?
     
  10. Geof

    Geof Volunteer Moderator
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    Have you homed the machine?
    If you dont home it after a power off it things where it is = 0
     
  11. allen33

    allen33 Member

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    when I home it the bed moves in the wrong direction away from the home switch and runs to the end and grinds the motor how would I change the direction of the bed?
     
  12. Geof

    Geof Volunteer Moderator
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    sounds like the motor is running backwards. Flip the connector on the ramps board for the Y motor.
     
  13. allen33

    allen33 Member

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    thats what I figured I would have to do
     
  14. allen33

    allen33 Member

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    I think that I also have my x and y home switches switched
     
  15. allen33

    allen33 Member

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    so this is what I am getting out of pronterface (this is without any of the home switches being touched by a part of the printer)
    x_min: TRIGGERED
    y_min: open
    z_min: open
     
  16. Geof

    Geof Volunteer Moderator
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    That should be very difficult to do with the board being labeled. I would doublecheck and trace wires before doing any changes to ensure you have everything connected correctly.
     
  17. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    >x_min: TRIGGERED<

    That means that the X axis is homed (or that the arduino thinks it is).
     
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  18. allen33

    allen33 Member

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    when I home the axes it takes the extruders to the back right when it should be taking the extruders to the front left how would I fix that?
     
  19. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    // ENDSTOP SETTINGS:
    // Sets direction of endstops when homing; 1=MAX, -1=MIN
    #define X_HOME_DIR -1
    #define Y_HOME_DIR -1
    #define Z_HOME_DIR -1
     
  20. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Back and front are a bit vague, but that is how the firmware defines which direction (to/from HOME switches) it will use.
     

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