RAMBO 1.2d 3D Printer Controller PCB RepRap with CABLES and ESD MOD

I could already tell seconds from pulling this board out of the box that it is the beast that will finally get my 3d printer going. I love how all the connectors are lock-in-place to prevent the cables from being yanked out. and the Digipots are the best idea this century, because pretty soon i wouldnt have anymore hairs to pull out everytime i got a junk stepper driver. One thing to be aware of though, my board and most likely many Rambo boards still floating around here and there are missing their bootloaders. This is an extremely easy fix so don't let this put you down from ever getting this controller. you can buy a avrisp programmer, or most likely you own an Arduino: you can use your Arduino as an isp to reburn the bootloader onto the mega2560.However, right now my 32u2 is not communicating with my mega2560 at all, I haven't messed with it. I reburned the bootloader on the mega2560 with my avrisp mkii, and was able to use this board to run my printer a few times, re-flashing firmware through arduino IDE a few times during this process. (only steps for motors were changed eached time I flashed it) after my last print, my board wont respond when I connect the usb. pretty bummed about it, because this board is now my favorite of all controller boards I've tried and I don't wish to go through those painful agonizing hours destroying other boards. :(

great board. this replaced a rambo v1.2 board which fried from static which was sent down the usb cable, shame geeetech cutomer service didnt care, was completly useless really, asked lots of dumb questions to avoid the problem and hoping id give up, but this board had esd, static protection fitted so very little chance it can be damaged from static, would buy another of these

Awesome board! I bought this as a replacement to a RAMBO board that I had on my 3D Printer that had fried due to static from the USB cable. This thing is near bullet proof. I highly recommend this board. Easy to install and setup.

This was a replacement board for one that had failed due to static electricity discharge damage to the USB port. The purchased board included ESD protection and so far has performed perfectly with no issues.