3d print file has holes but it will not print the holes

Hey guys so I've got repetier host on my jgaurora running Marlin RC8 and I'm not really sure what's going on every time I 3D print it prints so the whole is perfectly fine and then some of the holes it just doesn't print it it fills it in does anybody know what I did wrong is it that type A type B selection?


  • First I would check if the preview of the gcode has the same. To me it sounds like the stl files are non manifold so slicer does not see the holes and just put infill over it. Having no pictures of model/preview/result it is hard to say from your description.
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