The railing is folded duck tape that is duck tapped to a concrete floor. The surface is disposable shop towels. The shop towels provide too much friction for the Digi Q!
I am only guessing about 15” wide lanes. Again, how fast do you want to go. How many cars on the track? A Digi Q is vastly more controllable at lower speeds but of course NOT as fun. What to do, what to do?
You need to:
-figure out what surface you want to use.
-measure the turning radius you can make on THIS new surface repeat ably without spinning out
That should give you a good place to start.
What are you using to build it? Maybe I'll build one along side you guys

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