Ok Edrawins is SolidwWorks own version of a PDF file, it's just a graphical representation of the 3D models, THER IS NO SURFACE DATA IN IT!!!
The only way you would have been able to get measurement and a stl file was if the person published it that way and only if it was Edrawing Proffesional.
the reason for this is to send a small file that a customer can look at, rotate amd move apart( if an assemebly), were you don't need SW.
another reason was to stop cutomers from getting a SW file and then they don't pay for the work..YES HAS HAPPENED TO ME!!!!
so what you would need to do is ask the person for the SW file not an Edrawing or have him send you a IGES, STL, PARASOLID to send off to your model maker, yea I use Model Maker, was one for 25 yrs and have a degree in it...So I've been around the block..
happy new year
Retrieving data ...