With all the UHMW plastic things being made, I am wondering is the upper support wheel could be replaced with a pair of runners. Unlike the lower there is no movement, just support. An ice scraper could be incorporated if desired. If the runners were a foot or so long, and the width between guides, it would provide better support.
While I normally don't like reinventing the wheel, advances in materials may provide improvements. Even tight, the belt tends to wander on mine, and this would limit that to an extent.
So would the runners (appropriately shaped, smoothed) increase wear on the belting? Since they would be at the edges, they would not be bearing on the same area as the lower wheels.
Thoughts? Ideas?
While I normally don't like reinventing the wheel, advances in materials may provide improvements. Even tight, the belt tends to wander on mine, and this would limit that to an extent.
So would the runners (appropriately shaped, smoothed) increase wear on the belting? Since they would be at the edges, they would not be bearing on the same area as the lower wheels.
Thoughts? Ideas?