When you’re bending large sheet metal, the right setup and tools used can have a large impact on whether your bend has stacked errors or comes out smooth.
Bump bending remains more art than science, especially for large and thick workpieces, but using the right tools and setup procedures help make this challenging brake operation much more efficient. —Tim Heston
View the whole article on thefabricator.com:
When you’re working with smaller sheet metal, you may want to use a regular plate roll or press brake.