TimBL

Thanks this is what I have been looking for.

I have been satisfied user of Cura for a number of years but there is one issue that I have not been able to resolve. When I print a model the external dimension are always model dimension plus the thickness of the print laid down i.e. less for super quality and more for lower quality. Likewise inner dimensions such as holes are model dimensions minus the print lay down thickness. It seems the Cura software centres the printer on the edge rather than offsetting to take account of the change in print thickness. This is a problem when making parts that mate together. I can accommodate this by taking account of this extra material in model dimensions but that is almost impossible to manage if I want to print in a low quality and then fine. Is there some switch I shpuld beawre of? Scale is not an option as it will make any holes smaller than they should be.