Hey guys. I have a C-beam machine with an arduino grbl controller. I'm using stepstick DRV8825 stepper drivers and up until last night, they have been working just fine for almost 5 months. Last night I had a problem with my X axis. About 2 minutes into a cut in wood, there was a slight pause in movement, then all of a sudden my x axis moved twice as fast and twice as far as it should. I stopped the cut and did some testing. Y and z axis move fine, but x. Moves twice as fast and twice as far. I turned it off, restarted and still have the same problem. I checked the grbl settings and all axis steps were at 200. I also have two fans blowing across the heat sinks. So I don't think heat would have been the issue. Any ideas what happens?