Making Sense of CNC Router Linear Bearings
If you've ever noticed your machine shuddering mid-cut or leaving nasty ridges on a piece of hardwood, your cnc router linear bearings might be trying to tell you something. These little components are essentially the joints of your entire setup. They sit right at the intersection of "expensive pile of metal" and "precision cutting tool," and if they aren't working right, the rest of your machine basically doesn't matter. You could have the most powerful spindle in the world, but if your bearings are sloppy, your finish is going to look like it was carved with a butter knife. ...