Welcome to the SeeMeCNC Community

Hi

How do I update RAMBo to enable the second extruder?
I know I have to edit Configuration.h and set But how do I get the compiled firmware uploaded to the board?
Do I need an external programmer for that?

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gallenat0r

You would use the latest version of Arduino to edit the file and upload it to the Rambo.
The link to download the Arduino software is http://www.arduino.cc/en/Main/Software
See this link if you have problems uploading http://forum.seemecnc.com/viewtopic.php ... 588#p15588

I got in touch with John from SeeMeCNC and he told me that my board was probably with the bad bootloader.
After hours and hours of searching and tinkering I got to this page: http://www.gammon.com.au/forum/?id=11635

Basically it's a sketch that has bootloaders for the ATMEGA chips using an Arduino Uno as the programmer.
You give it commands using the serial monitor.
Once flashed I hooked it up to the RAMBo board using the ICSP header for the ATMEGA2560 and on the Uno also the ICSP header besides the reset pin which was put to pin 10.
And voila I had a functioning bootloader on the RAMBo board!!

Now on with the dual extruders

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gallenat0r

gallenat0r wrote:I got in touch with John from SeeMeCNC and he told me that my board was probably with the bad bootloader.
After hours and hours of searching and tinkering I got to this page: http://www.gammon.com.au/forum/?id=11635

Basically it's a sketch that has bootloaders for the ATMEGA chips using an Arduino Uno as the programmer.
You give it commands using the serial monitor.
Once flashed I hooked it up to the RAMBo board using the ICSP header for the ATMEGA2560 and on the Uno also the ICSP header besides the reset pin which was put to pin 10.
And voila I had a functioning bootloader on the RAMBo board!!

Now on with the dual extruders

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gallenat0r

Hey Gallenator, did you finished the dual extruder configuration? I'm in the middle of the same mod myself