I have a Arduino Mega and a Ramps 1.4 board I am using with my MPCNC. I was able to “Drive” it around the work surface with the Repetier firmware after flashing with Marlin per the MPCNC Tutorials, but the end stops would cause the board to reboot.
I recently flashed the board with Estlcam’s firmware to see if it got any better. I was able to “Drive” all the axis, however, when I hit and end stop, the board rebooted and my laptop died!
The laptop wont power back on and it’s not even 2 weeks old I think the endstop somehow sent 12v up the USB line and fried it.
Anyone seen anything like this? Any recommendations on what to do to prevent this from happening again and getting my end stops working safely? I’m a little gunshy at moving forward after frying a new $700 laptop.
Full disclosure, I did not buy the board from ViciousCNC. It was an Amazon deal with Arduino, Ramps 1.4, and stepper drives for about $35… Maybe I got what I payed for…
Thanks for your help.