[Part dimensions/model are different after slicing compared to model]

Thanks to you both. I turned off "make overhangs printable" and sliced the new model. The sliced part is the same as the model. Thank you Greg!

[Part dimensions/model are different after slicing compared to model]

This is not the first time I have experienced this. After slicing the sliced model is not the same as the part. For example the square slot is about 0.300in per side straight back, but the sliced part has an angle on the top. This should not need supports and even when I auto generate supports it does not put supports in the model, it just angles the top down. Suggestions? When I go to another slicer it produces the sliced model like it should. Thanks in advance.