This should be a very simple process.
I have a simple model and would like to print it.
I need to convert it to .stl format.
Here is what happens.
The model units are inches.
I save the model in .stl format.
I open the .stl drawing and save it as a part.
I create an assemble out of the new and the original parts.
The new part is humongous!
I delete the new files.
I open the original part, and save it as a copy and add test to the name.
I open the new test part, and change it's units to mm and save it.
I save it also save it in .stl format. I select options, and set the dimensions to mm prior to saving the file.
I open the the the .stl file and save it as a SW part.
I open the test part and create an assembly using the test part and the .stl part.
The .stl part is humongous!
What am I doing wrong?