So, I’ve had a pretty catastrophic printer failure - managed to kill not only my control board for my K8200, but the raspberry pi connected to it, and a replacement RAMPS 1.4 board + 2 arduino megas. Magic smoke escaping everywhere. I followed the wiki for hooking up a ramps board, and still managed to screw everything up. Anyone selling replacement controllers locally? I’m pretty much at my wit’s end with this , and have basically run into a wall.
Hey, I have a few extra parts for my printer, namely an arduino mega board, a ramps 1.4 board and only three stepper drivers. Email me at burghardtnoah@gmail.com if you’re interested
I have some RAMPS, Megas and A4988 spare, fell free to write me over my hub.
I can’t think about a situation where this would happen. Your power supply could be faulty. Check the voltages of the power supply with a multimeter and don’t connect everything at once.
I’d be happy to help in person, if you’re in Edmonton, London. Alberta would take a little longer.
Does sound like a serious power supply issue. At the normal Voltage, even if you connected everything the wrong way round, you really wouldn’t expect to let all the magic smoke out, so my guess is that either it’s connected to 24V or straight across the mains.
I’ll do a bit of sniffing around the design and see if there’s something obviously wrong. Could you upload a schematic of some kind??
I upgrade my printer’s belts, successfully. I update the firmware, and life is good.
The next day, I tried to fire up the printer. I used a relay hooked into the Raspberry Pi for switching the power on from the Octoprint menu. It had been working just fine for a while, but today it didn’t work. I got up, looked at the printer, and saw the RPi hanging off the back of the table. Picked it up, and it turned out the relay had slipped loose. Moving the cables caused it to hit the control board, and bam. Dead board - I think it’s just the FTDI chip on it, but there’s no way to fix that. The relay seemed to also kill the RPi. Note: it was a Grove Relay board, so it wasn’t just some random relay cobbled together.
So I ordered a RAMPS 1.4 board, express, as I had a Mega sitting around to use with it. Wired it up according to the wiki, and misread about the D1 diode (needed to be removed, apparently.) Dead mega. I got the RAMPS board from SainSmart.
Bought a new mega clone cheap off kijiji, removed the D1 diode, and POOF! magic smoke released because, I assume, the RAMPS board was also fried. Or maybe it DID need the D1 diode. No idea. There’s nothing visibly wrong with the RAMPS board, but that means nothing. I’ve pitched it out as a case of “better safe than sorry”.
I have ordered a complete set off Ebay - a RAMPS board, LCD, Steppers, and a Mega. Should be here in 3 weeks or so.
