So I'm building my router table and a thought suddenly occurred to me.

I'm using 2 motors for my x axis, which run on a chain/sprocket system. Sounds like it should run fine, except...

When the machine isn't running, if I bump one side its going to rack it all out of wack. Its a similar configuration to this one: http://buildyourcnc.com/blackToe4x8.aspx

Am I just being worried for nothing?