I can't remember if there was an intern limitation, but I don't recall there was one. That said, I no longer work there so I'm not clear on the current requirements. I remember that access to the EE shop is pretty easy to come by. Ask your mentor and/or google the internal page to figure out how things work.
Edit: If you want to get more info mail me at kai tinkercad.com.
Edit: If you want to get more info mail me at kai tinkercad.com.