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Help analyze first layer issues
 
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Help analyze first layer issues  

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barak.o
 barak.o
(@barak-o)
Eminent Member
Help analyze first layer issues

I have a mk3 printer that has been used quite a lot in the last year (probably 10 kg of material).

Recently there are issues with the print not sticking to the bed.

I cleaned everything as good as I can, and then tried the first layer calibration. I just can't seem to get the layer to stick unless it's really low (so the first layer is over extruded). Here's an example of the end of the first layer calibration:

(Please ignore the surface - it's just the table the piece was on as I took the picture)

The issues I'm seeing:

  • It seems the first layer is too low - there's over extrusion on that first layer.

  • It seems the first layer is too high - the edges of the printed square are not aligned, it seems the edges don't stick and lift up a bit.

  • There are "tractor marks" on the extruded filament - this is new. I don't remember this from the past (or from other Mk3 printers). Maybe the extruder idler is too tight?

    • Any thoughts on what's causing this?

    Posted : 15/01/2019 3:32 pm
    Chocki
     Chocki
    (@chocki)
    Prominent Member
    Re: Help analyze first layer issues

    What is your nozzle like?, have you used any abrasive filaments?

    Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.

    Posted : 15/01/2019 8:18 pm
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