Slic3r

JanComputerman

Recent version 201705 download windows 8 ... with extruder widths set to 0.5mm and layers 0.30mm the infill Overlap default of 15% seems to generate an initial extruder width and thickness correctly for some outer cylinder detail but as the inner fill of a cylinder first and second layers are printed it uses a 1.2mm width and a 0.70mm thickness. If the infill Overlap is set to 0% then it works properly. Needless to say when the second layer starts at a Z of 0.60mm it is dragging into the first layer.

Repetier

Does not sound as this is a host related slic3r error. It would be best to report it here
https://github.com/alexrj/Slic3r/issues
so the authors of slic3r see it and can fix it for the final 1.3.0 release.