Keyhole Hanger Negative Part

This is a file that you can add to your slicer to be able to add keyhole hanging slots to your model. This will create a negative space on the back of the model so you can hang it on a wall with a screw head. How to integrate it into your model:   First download the .stl file from this website, then add it to your model in the slicer, move camera under the file and place the keyhole stl where you want it on your model. Next merge the 2 objects then change the object type of the keyhole hanger from a part to a negative part. Slice it and see your new keyhole hanger!