I just finished building my Prusa and managed to tweak the settings in repsnapper to get some decent prints.
The only problem is the dimensions in the z-axis seem to be two times greater than is shown on the STL file or the gcode trace in repsnapper.
For example, when I try to print a prusa base vertex with foot, the holes for the threaded printed by the x and y axes are the perfect size and completely round. The the hole built in the z axis is oval and twice as wide as the xy hole. I dont know what I need to do to tweak this.
Thanks!