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Solved Simplify3D Print Bed Calibration Issues

Discussion in 'Troubleshooting' started by NaughtyGarfield, Jun 8, 2016.

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  1. NaughtyGarfield

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    Hello guys and gals,

    I just bought the Simplify3D after seeing so many people rave about it. However after downloading the latest version and selected Robo3D R1+ profile, the first print ended in disaster. It did it's calibration and stuff, however it was printing way to high, like 2mm high and you can see the filament just drops to the bed.

    I did copy the script from MC to S3D, but now it seems to heat my extruder and then it rests my extruder back to 0C without printing. Can anyone help me decode my issues?

    S3D default script (Extrude the filament way too high):
    G28 ; home all axes
    G29 ; probe the bed
    G1 Z5 F5000 ; lift nozzle
    M109 S[extruder0_temperature] ; set the extruder temp and wait
    G28 X0 Y0 ; home again to start wipe
    G1 X20 Z0 F4800 ; wipe

    MC default script on S3D (Will heat up to printing temp, but printer rest itself back to 0)
    G28 X0 Y0 Z0 ; home all axes
    G1 Z5 F5000 ; lift nozzle
    M109 S[temperature] ; set the extruder temp and wait
    G28 X0 Y0 Z0 ; Home Z again in case there was filament on nozzle
    G29 ; probe the bed
     
  2. KTMDirtFace

    KTMDirtFace Well-Known Member

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    Thats weird your missing the Z offset.

    are you printing on the glass bed?

    My simplify3d stock startup script looks like this..

    Code:
    G28 ; home all axes
    G1 Z5 F5000 ; lift Z by 5mm
    M565 Z-1.0; set the offset for auto-leveling mechanism
    G29 ; run auto-level
    
    This line sets your z offset
    Code:
    M565 Z-1.0; set the offset for auto-leveling mechanism
    
    The default is -1.0 from simplify3d.

    I have mine set to -0.9 which will lower the nozzle .1mm closer to the bed. if you did like -1.1 it would print .1mm higher than default.

    I would not copy your matter control settings over.
     
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  3. Geof

    Geof Volunteer Moderator
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    Hi there. It looks to me like your missing your z offset command.

    G28 ; home all axes
    G1 Z5 F5000 ; lift Z by 5mm
    M565 Z-1 ; set the offset for auto-leveling mechanism
    G29 ; run auto-level

    That -1 is a default we will have to do some testing to get it perfect.
     
  4. Geof

    Geof Volunteer Moderator
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  5. NaughtyGarfield

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    Hahah, Thank you guys!! You both said the same.. I wonder why my default doesn't give me that
    M565 Z-1 ; set the offset for auto-leveling mechanism
    I will try again and report back to you guys.
     
  6. Chuck Erwin

    Chuck Erwin Active Member

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    Well not knowing all the parameters it could be you need to manually adjust the bed or your z offset is off. Mine is at -.2 yours will be different.
    The second part you need check your nozzle temp in S3D I don't mess with the gcode on that but take the default profile for the robo3d and adjust the the filament I am printing with.

    haha I am slow
     
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  7. Geof

    Geof Volunteer Moderator
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    Its very odd that default didnt include this. But adding the z offset should correct that issue.
     
  8. NaughtyGarfield

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    I know why I am missing that code now.. It seems S3D added a new profile for the newest Robo3d R1+ and that one is missing the code for:
    M565 Z-1 ; set the offset for auto-leveling mechanism
    If I load the Profile for Robo3D R1 then I see that code in there.
     
  9. KTMDirtFace

    KTMDirtFace Well-Known Member

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    Yea I don't know I have seen a couple people post some weird results of simplify3d's stock Robo R1+ settings

    I haven't been able to reproduce it.. What Geoff and I posted is what I get every time I create a new stock profile.
     
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  10. KTMDirtFace

    KTMDirtFace Well-Known Member

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    Weird, well that seems like a S3D bug because I have a stock R1+ and use the same script on my R1 and R1+
     
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  11. Geof

    Geof Volunteer Moderator
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    I also havnt encountered the issue. Thats very strange, id ping their support so they know
     
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  12. NaughtyGarfield

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    Guys, thank you very much!! you guys are really awesome!! Yes, once I added that line everything printed closer, however it was still a bit high so I did what you guys recommended and put it at -0.9 and it was better, but for some reason it wasn't completely flat yet, so some 1st layer will not stick, so I did the -0.8 and that made it look like nice and flat just like my MC had before.

    Now I noticed when I do -0.8 the first layer have some small imperfection when printing straight lines, however not the -0.9. Yet -0.9 is still not perfect. Is there a way I can specify -0.85? Will that work?
     
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  13. KTMDirtFace

    KTMDirtFace Well-Known Member

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    No problem,

    Do you have a picture of the imperfections?

    Without seeing it I dont know what you mean but im guessing the bed is off level, even for the auto level ( i have this problem I especially have trouble with things on the right half of the bed),
    If I had to guess you might be getting some super smashed down stuff on one part and just kinda smashed down on the other?

    There is a couple of things you can mess with in S3D to help.

    1) would be first layer height in the layer tab. it defaults to 90% here is an explanation on how that works.

    https://www.simplify3d.com/support/tutorials/perfecting-the-first-layer/
    2) Maybe mess with the extrusion multiplier...on the extruder tab, it defaults for pla I think to 0.90.. I use a bit higher number on some filaments. ( currently I am using .95 on a print )

    You may just have to play around, thats what I do..i mess around till i get it how I want.

    EDIT: If you hover over the options in S3D it will give a tooltip description, if it doesn't make sense google it and they have good documents on it.
     
    #13 KTMDirtFace, Jun 8, 2016
    Last edited: Jun 8, 2016
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  14. KTMDirtFace

    KTMDirtFace Well-Known Member

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    Oh and on if -0.85 will work, I have done it.. not sure if it worked or not..or did anything . you may just have to try it. At that point i figured something else wasn't quite right. But I dont know for sure.
     
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  15. NaughtyGarfield

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    Hello KTMDirtFace,
    Oh man.. I have so so much to learn.. This 3D printing thing is so fun! Compared to the other unit I purchased from Monoprice with no community support like this, it makes a huge difference. Yes, I will have to study very carefully and play a bit more..

    On the imperfection, what I meant was the first lay the straight lines doesn't lay flat like the outer perimeter. So you will see almost like a little hump bubble, but once the second and third layer is laid, everything looks good.
     
  16. KTMDirtFace

    KTMDirtFace Well-Known Member

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    I see yea I get those bubbles too, its usually a combo of my Z layer height being too close, or my extrusion multiplier being too much . ( so it tries to spit too much plastic out in a small space ). Or its imperfections in my bed.

    Sometimes I just use a raft if I have to and am being lazy..that usually always works but thats the lazy man way out.
     
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  17. NaughtyGarfield

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    Yes, that's what I figured. Because when I was printing at -0.9 it was perfect however the outer layout is not sticking as well as I would like. With -0.8 the other layout is great but the lines are bubbly. :( I will pay around with the settings a little more and report back. However you have helped tremendously. Thank you.. and also Geof!
     
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  18. TomerO

    TomerO Member

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    Just dropped by to say that it doesn't sound like a bug to me.
    S3D provides gcode offset setting to all axis so you can set a z offset directly in the gcode...
    I for example use the RC6 marlin version with MESH so no m565 for me :)

    Sent from my Nexus 5 using Tapatalk
     
  19. KTMDirtFace

    KTMDirtFace Well-Known Member

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    That is a diffrent thing from the auto bed level z-offset setting.
     
  20. TomerO

    TomerO Member

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    Maybe I didn't understand something, since I didn't have to play with it a lot.
    Will you explain to me what the difference is? Except the effect on the max height which is just virtually different

    Sent from my Nexus 5 using Tapatalk
     
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