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Unanswered print problems first layers are good

Discussion in 'Troubleshooting' started by Robert J., Dec 28, 2015.

  1. Robert J.

    Robert J. Member

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    Ok i am new to the Robo3d and am having lots of problems with warping and what ever you would call this happening in the photo. Photo first layers (raft at least 2-3 layers in ) stick great and then that. This is ABS so i am printing at 95c and 235c. I have tried several different bed temps and almost every time this is the results. If i don't need supports my prints are getting better but if i need supports i need a raft for them to stick. if i print with out a raft and supports the end of my supports curl up makeing more problems. background i started off with a old makerbot printing abs great 110bed temps and kapton tap and had lots of success tell the boards fried. so i got a Robo 3d and hear i am please help.
     

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    #1 Robert J., Dec 28, 2015
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The curling is part and parcel of ABS. That said you should be able to do better :)
    If you are using anything other than Simplify3D you are better off not using supports.
    Design your models to avoid them.

    The fact that you need a raft implies that your first layer is not quite where it needs to be.
    This is an example of a correct first layer:

    http://printedsolid.com/firstlayer

    If yours does not look like that then you still have some adjustments to make.

    Start with something simple. Attached is a single layer print (it only has the first layer) and use it for testing.

    Print it and if the first layer is not correct adjust your Z offset a little bit (higher or lower) and then try again until you nail it.
    That is then the Z offset you need to always use.
     

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    #2 mark tomlinson, Dec 28, 2015
    Geof likes this.
  3. Robert J.

    Robert J. Member

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    so i switched back to pla and tried to reprint the part. i did the download the circle you posted and every thing was great nice and even thickness. but the pictures tell the story of the print i think. it was great for the first 30min and i step ed out and returned about 30min later to find this.
     

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    #3 Robert J., Dec 28, 2015
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    So exactly which printer do you have and which firmware is loaded?
    If you have the wrong flavor in stalled the Z steps/mm will be wrong and while it will start out fine, it will destroy itself as it progresses since the layers will collide.

    There is :

    The BETA (with and without leadscrew upgrade)
    The R1 (with and without leadscrew upgrade)
    The R1+

    And at least 3 different flavors of firmware.
    With the leadscrew upgrade they should all be using the same one (the R1+ version essentially).
     
    #4 mark tomlinson, Dec 28, 2015
  5. Robert J.

    Robert J. Member

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    So i was told it was a R1+ but i don't think it is, there is a sticker in side the cover that says "R1 14 04" so i'm amusing that is the manufacturer date. MC shows firmware as ROBO3DR1V3
     
    #5 Robert J., Dec 29, 2015
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    [QUOTE="Robert J., post: 64329, member: 10238"MC shows firmware as ROBO3DR1V3[/QUOTE]

    That is not the R1+ firmware. I have no way to know if it is the R1+ without looking at the leadscrews.
    Sometimes the wrong firmware ends up installed.

    Do the Z rods have a connector/coupler at the base where they are attached to the stepper motors or do the rods come straight up out of the motor?

    Take a picture of one if you can.
     
    #6 mark tomlinson, Dec 29, 2015
  7. Robert J.

    Robert J. Member

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    this is my z rod set up
     

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    #7 Robert J., Dec 29, 2015
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yep.
    20151229_141056.jpg

    shows it is an R1, not an R1+

    So ROBO3DR1V3 is fine for the firmware.
     
    #8 mark tomlinson, Dec 29, 2015
  9. Robert J.

    Robert J. Member

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    So what should i be looking at from this point. Is it possibly the Matter controls program. I have tried cura but i cant find a z offset and i need about .5mm
     
    #9 Robert J., Dec 29, 2015
  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    #10 mark tomlinson, Dec 29, 2015

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