Unanswered Newbie with a bad part

Ok, I am a newbie to the world of 3D printing. I had a bad part on my Robo R1plus and contacted Robo for a warranty part, but they wanted to send me another part saying it was the culprit. I will post my problem here and see if I am not explaining it correctly to the warranty dept. because after 5 or so emails and a picture of the part I was talking about, they still don't seem to understand. So I ordered a Robo R1 Plus about a year ago and luv it. I luved it so much, I bought another one about a month ago. I received that one and it printed fine connected to the usb, but I needed them to print at the same time, but different prints. So I went to the sd card, the older one printed fine from the sd card, but the newer on would print about 10% and the print would stop. After about 3 times trying with the same result, I unplugged the sd reader from the new machine that wasn't working, and plugged it into the old machine that was printing from the sd fine. It worked perfectly, printing the entire print without as much as a hiccup. So, I then plugged the sd reader back into the new machine and it failed again, that tells me the Arduino board from the new machine is bad, correct? If it printed fine using USB and will not on the sd, the fan is working, if it were the fuses, I wouldn't think it would print from the usb either, and I plugged the sd reader into another machine and it worked fine. Robo wanted to know the size of the Gcode = 65kb, they wanted to know if I ejected the sd card from my computer correctly, and I did obvioslly if the sd reader worked on another machine with that same sd card. They then sent me an email saying they were sending me an sd card reader. Am I not explaining myself correctly to them? Below is the picture of the Arduino board I sent them, I'm not sure how they got that my sd card reader was bad from the pic.

 

But I am not out of warranty, the printer is only a month old.

 

Thank you for your reply, I resent them an email explaining it again from your reply, hope it helps them.

 

I just replaced my 2560 board with one I got from MicroCenter (Inland) for $10.

If you can't get them to replace yours I now have a spare one we could make a deal on.

 

So I just need to replace the Arduino and the ramps will just plug into that? The holes line up for mounting, and everyting plugs to the ramps board and the ramps board will attach to the Arduino?

 

Yes. The Inland Mega 2560 I bought was a one for one swap except that the USB port does not have the extension to go all the way to the hole in the case.

In my case I wanted that because I'm using a right angle USB cable over to a Raspberry Pi 3 running OctoPrint.

 

Thats fine, I wont be using the usb at all unless in an emergency.

 

So really I won't have to unplug anything from the ramps board, just unscrew the Arduino, dismount the ramps from the Arduino and replace?

 

Yup, you will need to unplug the bottom case fan but other than that you can unplug the daughter card with it all wired up, line it up on the new Arduino and plug it in. Then fire up you Arduino IDE and compile and update Marlin. Once you have Marlin setup you won't need the USB except to do firmware updates.

Just did this yesterday on mine with an Inland clone of a Mega 2560.

 

Never compiled or uploaded anything, lol, as I said total noob here, lol.

 

Perfect thank you, I may just go purchase one then, while I am going back and forth with Robo Warranty.

 

The Arduino IDE is pretty easy.

Download the IDE
Once it is installed setup the board type (Mega 2560), should have board connected to USB for this
Open Marlin.ino (in the Robo source)
Click the Update button
Be patient and wait until its done (takes a few minutes)

 

I just skyped with Brian at Robo, I had v1 of the firmware, he walked me through flashing it to v2, I will try again, but he said he will order the Arduino for me if flashing it doesn't work.