Looking to borrow an arduino mega or RAMPS board for troubleshooting...

[Gary Kramlich]

Anyone have an arduino mega I can tinker with for a few hours?  My Mosaic is having problems and I've tracked it to either the RAMPS or the MEGA.

Thanks,

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Gary Kramlich <gr...@reaperworld.com>

[Adam Cohen]

I have an Arduino Mega ADK in my drawer. Would that work?

[Vishal Rana]

I also have a mega I can drop off at the space this evening.

Vishal

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[Gary Kramlich]

Um, I not sure exactly which one it is.  I just know it's a mega :)  I just need to throw my RAMPS on it and see if my stepper for my extruder port still works like crap on a different mega ;)  But I'm willing to try either ;)  Earliest I can make it to the space is thrusday though.

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[Joe Kerman]

Happy to assist in troubleshooting which of the devices it is via
email if youd like. here or off-list, let me know! If you can upload
firmware, the mega is probably good. The ramps is full of high
current, and components that like to catch fire. its usually at fault
:)

Joe Kerman
Sector67

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[Joe Kerman]

tried swapping the extruder driver for another axis driver?

[Gary Kramlich]

Yeah the stepper works on any other drive port. I've swapped the pololus all around too. Its something between the extruder port on the ramps and the Mega. If push comes to shove I can tweak the firmware to turn extruder port 2 into extruder port 1. But I'd like to actually figure out what broke.

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[Gary Kramlich]

Sorry been super busy.  So here's an update on my printer... updated to the lastest marlin firmware and tricked it into thinking extruder 1 was extruder 0, still no dice.  We scoped the stepper pins and never saw the stepper signal.  The solder joints on the RAMPS look fine.  So long story short everything is pointing to the mega.

So anyone that has mentioned having an extra mega, any chance you want to sell it?  And if so, any chance I can pick it up before barcamp this weekend or will you be at barcamp this weekend?