How do I make a rally coarse that won't mess up the bit?

[Fourustwentius]

How is this possible without getting small particles in the moving parts? And if there is a way, would'nt it be easier to drift on loose terain









? 3.8 and battey are coming in the mail

[PWalk]

Hey,

I have been building my rally course for 2 weeks now basically through trial and error.

I'm using sand paper! yes sandpaper! for the actual roadway. As for debris getting into the cars? I've had nothing but good results with the sand paper. I just use one of those dust blasters for computers and blow out the Bits after each run.

[Fourustwentius]

I was thinking about using that, but I gotta move soon so the track planis on hold.

[DraGula]

could you use foam?