So I setup a MPCNC running on a Arduino Mega and Ramps 1.4 with DRV 8825 Drivers. It has been running very well until today when I made a careless mistake.
I was attempting to cut acrylic and right about the time I realized I should have peeled off the protective coating it was sucked up into the spindle. The machine crashed (physically), I quick hit the stop button on the LCD and stopped the spindle. I unplugged the controller, and cleaned up the mess.
When I powered back on the MPCNC acted very strange, I attempted to reset the 0 point and restart the job. The Z axis bolted up much faster then I had ever noticed before. It moved to the X and Y stops, started to move the Z down toward the touch plate, but stopped short. Then the screen kind of went blank and it started to flash.
OK reset, now every time I power on It boots properly, shows the Marlin Screen, followed by the home screen, then within a couple minutes It starts “Flashing” there is a flicker to the screen and the leds blink rapidly. After a moment and killing the power there seems to be a bit of a hot spot on the Arduino. I tried reflashing the Arduino, no change in behavior. Did I burn up something and its causing the power to “flicker”?
Oh btw I did put a voltmeter on the power supply (same PS sold here) leads to rule it out and its proving a steady 12.7 volts.
I was wondering if I fried one of the polyfuses on the ramps board
Thanks in advance