I need to project something onto my ceiling. I've been researching these past couple of days & I'm pretty desperate at this point.
I understand you can't point projectors upward because of the heat, so forgive me if this sounds dumb, but would it be okay I faced the projector upward then just pointed a fan towards it? If not, is there another way I can go about this without having to get a first surface mirror?
If not though, and I do manage to get my hands on an fs mirror, how do I set it up? Does the mirror need to be a certain size if I want to get as big & clear a projection as possible?