Hi!
I'm building my first 3d-printer and tried to connect RAMPS + Sainsmart Mega 2560 to ATX power supply. Almost immediately the magic smoke appeared, presumably from the Mega board. I had nothing connected to the RAMPS board (wrong?!?) and the Mega board wasn't connected via USB.
It burned at least the voltage regulator (showing strange voltages now when i connect a 12V adapter straight to Mega board) and probably something else too. For some time it seemed to work via USB but wasn't recognized in Windows any more. Now after testing it with 12V it seems to be completely dead.
I bought a new Mega board and a new RAMPS board, just in case. Just wanted to ask what precautions should I take for this not to happen again? Is it ok to plug 12v into RAMPS when there's nothing connected to it but the Arduino board? Or was this just bad luck, not sure if the voltage regulator was working properly as it was an old board which had never been used with 12V.
I'm building my first 3d-printer and tried to connect RAMPS + Sainsmart Mega 2560 to ATX power supply. Almost immediately the magic smoke appeared, presumably from the Mega board. I had nothing connected to the RAMPS board (wrong?!?) and the Mega board wasn't connected via USB.
It burned at least the voltage regulator (showing strange voltages now when i connect a 12V adapter straight to Mega board) and probably something else too. For some time it seemed to work via USB but wasn't recognized in Windows any more. Now after testing it with 12V it seems to be completely dead.
I bought a new Mega board and a new RAMPS board, just in case. Just wanted to ask what precautions should I take for this not to happen again? Is it ok to plug 12v into RAMPS when there's nothing connected to it but the Arduino board? Or was this just bad luck, not sure if the voltage regulator was working properly as it was an old board which had never been used with 12V.