One of the things that I did when I was testing my new CNC was throw random-ish move commands at it. I’d tell it to move a few inches to the left, and then a few inches to the right, then further to the left, and further to the right, and so forth. Eventually, I’d decide that it was working okay and then I’d either turn up the speed or move on to the next part of the assembly process. There are at least two problems with this, of course. First, that’s not even remotely random. Second,...
