This popped into my head. I remember thinking about buying one of these years ago. Glad I didn’t due to bad reviews:
But the thing I was thinking about was the conveyor belt idea. Maybe for a future Pro model, have an auto feeding belt on the front and back that can pull and push the piece through. Obviously only on the front and back, and not through the middle. And for fabrics and maybe leather, some sort of roll up bar, that could have the material auto feed through as well.
Or maybe even an add-on to present models?