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Partial Answer print not original shape in z axis

Discussion in 'Troubleshooting' started by xfire_dragonx, Nov 8, 2018.

  1. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If auto home is sending to the center of the bed something is not right in any case since "home" is not the center. Not for the printer and not for most slicers. It is always X/Y/Z = 0

    Only on our delta is home center and even then it is center at the TOP of the gantry, so that is no good for this printer either
     
  2. xfire_dragonx

    xfire_dragonx Member

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    Never had an issue with the current full graphics lcd and my old discount reprap auto home function. Until this issue, which started today and something is stopping the z axis from going down.
     
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The Z axis will stop going down when something is mechanically binding (or in the way) or when one of the Z end stops reads "home" (which is when it sees an open circuit on those sensors and that usually means one of the switches opened).
     
  4. xfire_dragonx

    xfire_dragonx Member

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  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Should work. I used Arcade switch switches in one when we rebuilt it (mostly because they are about the same size and... I had a ton of them)
     
  6. xfire_dragonx

    xfire_dragonx Member

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    Hey, I replaced the end stops, the unit is still doing the same thing. I know The z,x,y axis work via the lcd screen, the exception is the z axis auto home. When the machine goes into the freeze mode. I lift the head off the z end stops it lowers and sets z axis at 0.

    Direct connection to my pc, Using cura, matter control, I tried to move the z axis, the machine moves very little before Buzzing, freezing.

    Here is the log from matter control:
    ->Communication State: AttemptingToConnect

    ->M105

    <-start
    ->Communication State: Connected

    <-echo:Marlin1.0.0
    ->M115

    <-echo: Last Updated: Dec 4 2018 11:23:50 | Author: (RoBo 3D, R1 Single Extruder)
    <-Compiled: Dec 4 2018
    <-echo: Free Memory: 3437 PlannerBufferBytes: 1232
    <-echo:Hardcoded Default Settings Loaded
    <-echo:Steps per unit:
    <-echo: M92 X80.00 Y80.00 Z2560.00 E723.38
    <-echo:Maximum feedrates (mm/s):
    <-echo: M203 X500.00 Y500.00 Z5.00 E25.00
    <-echo:Maximum Acceleration (mm/s2):
    <-echo: M201 X9000 Y9000 Z100 E10000
    <-echo:Acceleration: S=acceleration, T=retract acceleration
    <-echo: M204 S1300.00 T3000.00
    <-echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s), Z=maximum Z jerk (mm/s), E=maximum E jerk (mm/s)
    <-echo: M205 S0.00 T0.00 B20000 X17.00 Z0.40 E5.00
    <-echo:Home offset (mm):
    <-echo: M206 X0.00 Y0.00 Z0.00
    <-echo:pID settings:
    <-echo: M301 P22.20 I1.08 D114.00
    ->M114

    <-echo:SD init fail
    <-FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup for gen6 FIRMWARE_URL:https://github.com/ErikZalm/Marlin/ PROTOCOL_VERSION:1.0 MACHINE_TYPE:ROBO3DR1V3 EXTRUDER_COUNT:1 UUID:00000000-0000-0000-0000-000000000000
    <-ok
    ->M105

    <-X:0.00 Y:0.00 Z:0.00 E:0.00 Count X: 0.00 Y:0.00 Z:0.00
    <-ok
    <-ok T:18.8 /0.0 B:21.2 /0.0 T0:18.8 /0.0 @:0 B@:0
    ->M105

    <-ok T:18.9 /0.0 B:21.2 /0.0 T0:18.9 /0.0 @:0 B@:0
    ->M105

    <-ok T:18.8 /0.0 B:21.1 /0.0 T0:18.8 /0.0 @:0 B@:0
    ->M105

    <-ok T:18.9 /0.0 B:21.1 /0.0 T0:18.9 /0.0 @:0 B@:0
    ->G91

    <-ok
    ->G1 X-10 F3000

    <-ok
    ->G90

    <-ok
    ->M105

    <-ok T:18.9 /0.0 B:21.2 /0.0 T0:18.9 /0.0 @:0 B@:0
    ->G91

    <-ok
    ->G1 X10 F3000

    <-ok
    ->G90

    <-ok
    ->G91

    <-ok
    ->G1 Y10 F3000

    <-ok
    ->G90

    <-ok
     
    #46 xfire_dragonx, Dec 4, 2018
    Last edited: Dec 4, 2018
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Well there are only two parts (if I ignore wiring) that are involved.
    The limit switchs and the Arduino/RAMPS.

    If you have eliminated the others, then all that is left is the Arduino/RAMPS :)

    You can replace those individually (usually the RAMPS is the culprit, but not always)

    If you are certain the wiring is fine (sounds like it, but I am not 'there') then it is electronics/software (and it is almost never software)
     
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  8. xfire_dragonx

    xfire_dragonx Member

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    could I use my old stepper motor driver module, or should they be the same. Or get a new board and modules? The issue is only with the z homing axis.

    As mentioned The full graphics controller moves the x, y, z in manual mode.
    Direct software z axis controls don't work.
     
    #48 xfire_dragonx, Dec 5, 2018
    Last edited: Dec 5, 2018
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    All of the stepper drivers are identical -- you can move them from one to another.
     
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  10. xfire_dragonx

    xfire_dragonx Member

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    Changed the z axis module and it's better, but still doing the same thing.
    Only thing left is getting a new ramp board.

     
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Is this an R1 or an R1+?
     
  12. xfire_dragonx

    xfire_dragonx Member

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    r1 as far as i know has the adapter on the z axis motors for 8mm rods
     
  13. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If it has an adapter then it is an R1
     
  14. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    So the question was there to sort out how many stepper drivers are driving the Z :)
    In a normal RepRap style, one. In the R1+ Robo is using two (which is odd and rather pointless since Z motors demand little current).
     
  15. xfire_dragonx

    xfire_dragonx Member

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    there is 2 connections for the z axis motors on the board and one connection for the end stops.
    before i played with my firmware the printer was working just the z steps were off..
     
  16. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yep, that is normal for the standard RAMPS 1.4 board (and the R1 uses a standard one, the R1+ a customized one).
     
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  17. xfire_dragonx

    xfire_dragonx Member

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    I'm thinking it's the ramps board is the issue.. as mentioned i changed the module and the z axis was a bit better.

    when I use the controller everything works, with exception the auto home sequence that doesn't work along with direct z axis software control.
     
  18. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    It could be either board honestly (RAMPS or Arduino) so buy a set if you don't already have them.
     
  19. xfire_dragonx

    xfire_dragonx Member

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    Changed the ramps board and still doing the same thing, Have arduino board ordered. If it's not the boards then software, As stated before everything works on the printer with exception of the auto homing function. Through the full graphics display all axis function along with motors.
     
  20. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    OK, after a review of the thread (more importantly the recent bits) I see you are using the AutoHome from the LCD and I will have to try that at some point. I can't say that I have ever even used it so maybe it does something odd (which would be the firmware). I'll see about digging one out and firing it up to give that a test.

    I always use OctoPrint to make the machines standalone and control them via its web GUI. Home and the like work exactly as they should and the same as doing it via direct control from a slicer. (as in center of the bed is NOT home, front-left corner is)
     

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