Just had a user come to me with a problem. He stated that a pipe fitting he had downloaded from McMaster had zero weight. I looked into it and the part was scaled down by 25.4 in the STEP file he had gotten. Has anybody else run into this?
There were two possible fixes. One was to import with template units and use mm. The other was to scale the part.
One cause I thought of was that whoever created the STEP didn't write units into the file since SW by default looks for units in STEP files.