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Can't get rid of bottom layer lines pattern


MarissaP

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Posted · Can't get rid of bottom layer lines pattern

I have been trying to slice this model I have and I don't want any top or bottom layers because it only requires one wall and the line pattern on the bottom tends not to print well with the large 2 mm nozzle I am using. I just want the bottom layer to start by printing the walls. I set the bottom and top layers to zero but the line pattern on the first layer will not change and I even tried changing the bottom pattern to concentric with 2 bottom layers and the yellow lines on the bottom of the preview will not change or go away. Please help.176498890_FirstLayer.thumb.JPG.3bba9a6c7e349159bea08703cb90b63f.JPG1931581198_FullPrint.thumb.JPG.834a3000be3d3dd61afb87dbd399f317.JPG

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    Posted · Can't get rid of bottom layer lines pattern

    Concerning the height: What happens there is that the height of the layer(s) doesn't change the model, it only changes where the layer intersects the model. The (1st) layer is still reduced in height, but the next layer will start sooner.

     

    Setting the number of top/bottom layers to 0 should have worked, and works if I try to reproduce it here. Also you expect there to be walls on the 0th/1st layer as wel, even if there is 

     

    Could yout attach the saved project (Save As, not Export) so we can see what's going on? Ypu might need to zip it to attach it here.

     

    Alternatively, depending on what you mean by "don't print very well" (but are otherwise OK with the bottom skin being there) there are different things you could try. Do those lines not adhere well to the build plate (in which case you could try adhesion methods such as printing a brim or sticking glue to the buildplate) or is there something else going on?

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    Posted · Can't get rid of bottom layer lines pattern

    I must've had some other settings on that wasn't allowing the bottom layer to change because I put all my settings back to recommended then I changed the top/bottom layers to 0 and it worked. Not sure why. In reference to the bottom layer not printing very well, short lines like the ones on the bottom of the model tend to pull up of the build plate. I use glue, slow down the first layer, increase extrusion temperature for first layer and I can't find anything that helps. Even a brim doesn't helps because the issue is when the nozzle travels after the short lines.

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    Posted · Can't get rid of bottom layer lines pattern

    What material are you using, and what kind of surface are you printing on? Bed adhesion issues have a bunch of possible causes, and solving those will help all your future efforts.

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