Solved OK I HAVE BOUGHT 3 ramps 1.4 board on amazon NOTHINGS WORKING!!!!!!!!!!!

Well, you can buy them from Robo if you think you have bad parts.
It is possible that the Arduino is hosed at this point, but if you take only the arduino (no ramps) and connect to it with the compiler and load over the blink sketch (one of the standard examples) and that works -- it is probably not the arduino.

If you are in need of a more immediate, hand-on type of assistance you should call Robo and speak with their tier-2 technicians (you have to ask for them and schedule a session).

If you are willing to work with us other owners to help sort you out then ...

As mentioned before I prefer the all-in-one kits since those have all of the parts you might ever need in one kit. We can't magically tell you anything new. The last time this happened to be it was a batch of BAD RAMPS boards (three out of four). Rather than buying a bunch of individual components you should just consider the kit and replace everything with new bits and then you are not trying to figure out what is bad. Could you still get a bad board? Yea, but I think it is less likely AND you will have a new Arduino (and stepper drivers) too. If the boards you have ARE bad you can send them back for a refund (same with the all-in-one kits, but those have always worked for me).

You can also find a local makerspace and there will almost certainly be someone around that can give you a hand.

 

It can be a bit off-putting to be forced to dig into the mechanical and electrical and software bits to do this troubleshooting. We get that and have pretty much all been there.

 

I KNOW you have bad electronics -- that is a given. What I do not KNOW is which one(s) that is/are.



Since you ONLY have RAMPS replacements we don't know if the Arduino is bad. I am not sure if you had the stepper drivers installed or not when you were putting the RAMPS back on and getting the overheating.

So, with the limited amount of knowledge I have all I can do is relate you back to the last time this happened to me (and I already have discussed that). My use case may not be your case.

In reality you could have a bad arduino, you could have (more) bad RAMPS or you could have some bad stepper drivers (or some combination of the lot).

My suggestion now (as before) if you want to pursue this is to buy the all-in-one kit. That gives you all (everything!) electronic under the printer. Simply rebuild the entire thing from the new parts, load the firmware and go.

Then (not waiting on a working printer) you can experiment with the parts you removed if you want to figure out which ones are bad. No stress then since the printer is all working again. Finally once you know what is good and what is bad THEN buy more spares I like having a spare of everything. My down time is usually short.

 

Be certain when you are assembling the Arduino/RAMPS that all of the pins are lined up correctly. It is easy to have some that do not and that will NEVER work. Many of the cheaper RAMPS boards have slightly bent pins and that makes it a beast to get it assembled right (i.e. no pins out of place)

 

LOL, that is some twisty-turning logic, but I agree.

 

Make sure your stepper drivers are plugged in the correct orientation, most are not documented well and you can't rely on the location of the adjustment pot to know if you installed them right side up or upside down.

 

I *think* (but am not certain) that he was having this issue without them even installed, but ... need more input.

 

The bottom line here is that your new RAMPS boards you have MAY be OK... we can't tell and really, neither can you. Since you are getting essentially the same problem from all of these it is less likely it is a RAMPS issue. Maybe stepper drivers? (we do not know if you swapped those) Maybe Arduino? (we know you didn't swap that). It is extremely difficult to isolate the problem this way and while the most common faults are with the stepper drivers or RAMPS it is not unheard of for the Arduino to be the issue.

My Point (if I can make it again) is that the rash of bad ones I had bought (ME, myself, not yours) were all loose, individual boards from the cheapest Prime sellers. I will not do that again.

All of my previous spares were from the all-in-one kits and never an issue with those.

At this point you need to replace the Arduino at a minimum and see where you stand.

 

Frankly you should start with a new Arduino and then mount a new RAMPS (without stepper drivers) to make sure that alone is a working combination (i.e. the Arduinio does not get hot). Then start adding other bits. One step at a time.

 

I can't say.
I can say that when mine did that it was a bad RAMPS (I am repeating myself)
Yours may be a bad arduino. This is not a cut-and-dried thing "if the arduino gets hot it is the RAMPS"

Troubleshooting the electronics can be a fairly precise thing, but not via second or third hand. Only way I sorted mine was that I HAD 4 spare RAMPS boards and could quickly swap them (I also had 3 arduinos, but that was the first thing I swapped and it was not the source of my troubles).

Mine session went something like*:
Hmm arduino getting hot
Replace it...
Hmmm arduino STILL getting hot.
Swap RAMPS
(repeat that last step 3 times)
Working...
In none of these cases did I even have the stepper drivers installed...

It was pretty frustrating and I had a hard time swallowing that they were all bad, but I tried with other Arduino boards later and confirmed that and returned them.


*there were some curse words involved in this process -- will spare you that detail

 

https://smile.amazon.com/gp/product/B00ECV62P0

None of the companies selling the all-in-one kits are 5 star rated
Probably because these are cheap Chinese components and nobody has a flawless supply.