A friend who used to work as a motion control camera assistant in Los Angeles mentioned the idea of using Velcro instead of a belt drive for linear dolly motion. He suggested putting a strip of female Velcro on the rail system and male Velcro around a drive wheel. He explained that there is enough contact strength between the two surfaces to allow for precise resolution.
I am thinking about trying this out and wondering if anyone has any experience with this, "out of the box" idea. I like that it eliminates the step of setting up a belt and tensioning it each time you want to build your rig.
Thanks for your thoughts.