First layer overlap on one side

  • When printing the first layer, the infill overlaps on just one side of my print. Thereupon there's a rough, and a lot higher, surface on the first few millimeters after the wall.

    • Printer: Arduino Materia 101

    • Filament: Rec Pla

    • Temp: 210 degrees

    I have tried to troubleshoot it, but I just found information about a problem when the infill isn't close enough to the wall everywhere.

    However, for me, the problem is the contrary and just on one side.

    Photo of overlap

  • tbm0115

    tbm0115 Correct answer

    6 years ago

    This may be a result of an unlevel build plate (OP did not specify if calibration was done at time of writing).

    If the area that is overlapping is higher (closer to the nozzle), the filament will be pushed down and around the nozzle as it extrudes in that area. This will result in excess filament overlapping unto other strands on the layer.

    Please excuse my lack of artistic skills in paint, but the image below should illustrate what can happen when your build plate is unlevel:

    enter image description here

    Basically what it's trying to illustrate is that if the nozzle is closer than the expected layer height, the machine will continue to flow as if the nozzle is layer height away. This typically results in a larger layer width because the nozzle is essentially pushing material out of the way.

    You will notice that as you go further to the right in the drawing, that your layer may begin to "thin out" because if the nozzle more than a layer height away, the filament "stretches" until it settles on the build plate, resulting in a thinner layer width.

    Ideally, your nozzle will be parallel to your build plate at all points along the build space and the "Standoff Distance" will be equal to your layer height. So, you should see the top of your bead of filament at the same height as the bottom of your nozzle.

    Sorry for the long delay... I'm not really good at calibrating yet, but i calibrated the build plate. I took a paper and put it on the build plate, then i liftet Z to 0. Afterwards i told the printer to move X and Y and leveled the build plate so, that the power i needed to pull the paper under the nozzle was the same in every place... So that should have done the trick, shouldn't it? Sorry for bad english. :/

    Yes, it sounds like you did the right procedure. Your English looks fine :) You might do a little digging to see if there is a GCode program to help you calibrate faster if your machine does not have a procedure all ready.

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Content dated before 7/24/2021 11:53 AM

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