Solved Robo 3d R1+ rewired strange issue

So I purchased a Robo 3d R1+ from ebay that was for parts and figured I can learn something and get a second Robo 3d R1+in the process. At the time the parts were unavailable from Robo and not available from partsbuilt.com so I purchased 3 ramps 1.4 boards, 3 Arduino Mega 2560 boards, stepper motors, linear bearings, a hexagon hot end and 2 12v 30a universal power supplies from Ebay. I followed all the instructions from the forum about wiring and firmware upload and that is where the strangeness started. I have tried with all 3 Arduino and all 3 ramps boards but after plugging everything in and starting to flash with the Robo firmware the computer makes the usb disconnect sound and I can no longer connect to the board. I end up having to unplug and plug in the board until it finally takes and then the same thing happens when I try to connect to matter control on my tablet PC, desktop or my matter control T7 tablet. The usb will connect then within 1 to 30 seconds it will disconnect even with the plug still in. I should also mention I have tried 4 different cables and 3 different adapters for the tablet. Has anyone seen this before or have any suggestions?

I have learned more than I ever thought I would doing this but after 3 weeks I decided to reach out and get help if any is available.

 

Make sure that you're installing the correct version of the firmware.

 

Thanks for the prompt responses. I have tried that today and I was able to get 2 of the Arduino Mega 2560 boards uploaded with the proper firmware but when i put on the Ramps board it happens again. I have even tried a known good ramps board and the issue persists. I should probably mention I am using the same drivers every time I test even on the known good ramps because they are bran new. Is it possible they are the issue?

 

Pics of boards.

 

Did you check the servo motors & wiring for shorts? You could unplug one motor at a time to see if the issue persists.

 

Sorry for the delay, I have been ill with a stomach bug and had my DaVinci 1.0 AIO crash on me as well. First of all, thank you all so much for your input and quick responses. The culprit seems to have been the drivers. After removing all of them and starting with just the Arduino then the ramps, I was able to install the firmware and after 15 min had no disconnection. I was even able to connect it to Mattercontrol without issue (aside from as psycho thermistor that cannot decide what temp it is)..

 

So any suggestions on the drivers I should buy? Looked at Amazon and there are regular, silent , ones with huge heat sinks and ones sold individually......

 

So I got the drivers in today and installed them one at a time carefully and made sure there was no disconnecting for several minutes after installing each one and now it connects without issue. Now for the fun part, do you have to have a print bed connected to move the motors using the controls in mattercontrol? I tried to get it to home, move x, y, z or extrude (at temp of course) and nothing, I even changed out the cables going to the motors with brand new ones and nothing. I could however get the extruder to heat up and the thermistor started working properly.

 

Ok, thanks again for everything. I went through 2 sets of drivers, 2 Arduino and 2 ramps boards until I found a good combo. I was able to get all motors, including the extruder motor, working and now just have to buy a new heated bed and print a holder for my Matter-control tablet. I do appreciate everyone's assistance. Rebuild 3d printer checked off my list and now on to build 3d printer from parts is my next project.