Extending a Projector Ceiling Mount Length

[iKokomo]

I just got a working Optoma HD70 projector from a thrift store for $24 and it came with a ceiling mount. I would like to use the mount on my ceiling, but there is a ceiling fan in the middle of the room, so I would need to drop down the projector mount a good extra 6-12 inches. My question is how would I go about doing this? Is there an extension rod this projector? Can I make a homemade extension rod and how can I do this?
This is a neat projector and I would love to put in on the ceiling.

Thanks for your help.

 

[sKiZo]

I suppose my first concern would be, how heavy is the projector, and how much of a dent in my head would it make if it fell?

That said, I'd think you could replace the center rod with threaded stock cut to most any length. Depends on how it's attached to the mounting plates. Looks like it's just nutted on?