Milling 4/6 SIDES .STL FILE?

Hi,

Looking for help / advice, I downloaded a STL file on Thingiverse pinewood derby car I would like to make for my son Having little fun. is there a way to mill each side separate and how? Thanks

There seems to be a bit of missing information, like what CAD and CAM programs you use and what kind of mill/router.

I'm usinig GibbsCam 12/ and wil be cutting out on a mill. I would like to select each side separate and mill one side at a time. My problem is how do I select one side at a time to mill