Board Thread:Off Topic/@comment-38854975-20190905144044/@comment-25396609-20191011182350

Though I will add that in that case the blade was composed of many many small chips instead of a single solid pieces; allowing them to be easily replaced as they broke or fell off.

Of course, and I have seen it done, using Dust with that design allows you to effectively regenerate those pieces instantly without needing to take it in for repairs.