Three Prong AC Plug

This is a component of a prototype I created (designed in Fusion 360). While my model didn't prove to be useful, I decided this individual component might be helpful to someone else.

My gut reaction is that supports are absolutely required. I needed to trim the model just a bit with an X-Acto knife where there were supports (at the bottom of the blades/prongs).

One probably doesn't need 70% infill. If I re-printed this, I'd probably go lower, like 25%?