GH2 How do you motorize a dolly?

[dvxhutch]

Hey guys,
I'm shooting 1 actor as twins, and want to use dolly shots, but I'd need to have the dolly moving at exactly the same rate so I can shoot him on 2 sides of the frame and composite them together.

I saw a clip on the net, can't remember where, where a guy used his electic train set that ran at a constant speed to do this trick and it worked well.

I've got the dolly, just need to 'motorize' it!

Anyone got any ideas or links?

THANKS

 

[mr bill]

google is your friend.

http://www.youtube.com/watch?v=j-CmKax6t8Q

 

[brunerww]

Of all the DIY dollies I have seen, I like this motorized slider project because the creator took the time to post a parts list: http://vimeo.com/37712545

Cheers,

Bill

 

[ErikTande]

Of all the DIY dollies I have seen, I like this motorized slider project because the creator took the time to post a parts list: http://vimeo.com/37712545

Cheers,

Bill

Cool link, thanks!

 

[DPStewart]

Folks may throw eggs at me but i gotta say:

You'd be really surprised by what you can build with LEGO parts. Especially from their Robotics line.

 

[dvxhutch]

Cool link, thanks!

+1!