A few weeks ago, I was testing drilling holes in aluminum on my CNC and broke a bit. I’m not going to go into what went wrong here to make the bit break; that’s not the important part right now. What matters is understanding just how much force can be involved in milling, even with a light-duty CNC router like mine. Here’s the video: (Or YouTube) One of the fascinating things (to me, at least) was how much the CNC’s gantry moved. If you watch, in addition to seeing the vise shift, you...
