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*** NOTE *** This document is mostly out-of-date. It still should work to build the firmware through the Arduino environment, but further doc is needed regarding how to build the firmware without Arduino. *** NOTE *** This is the v1.3 release of the RepRap Generation 3 firmware. It contains firmware for the following boards: * RepRap v1.1 Motherboard * RepRap v1.2 Motherboard * Extruder Controller v2.2 ** INSTALLATION ** 1) Install the Arduino software If you haven't already, you should start by installing the Arduino software. You can find the latest version for Windows, Mac, and Linux here: http://arduino.cc/en/Main/Software Follow the instructions on the Arduino site to install the software. 2) Install Sanguino support The RepRep motherboard uses the Sanguino, an Arduino derivative. You'll need to add some Sanguino-specific bits to your Arduino installation before you can program the motherboard. Follow the directions for your platform: For Mac OS X: http://sanguino.cc/softwareformac For Windows: http://sanguino.cc/softwareforwindows For Linux: http://sanguino.cc/softwareforlinux 3) Install the bootloaders If you have pre-assembled RepRap motherboards or extruder controllers, or are updating firmware you've installed before, you can skip these steps. If you've assembled your own board and are installing firmware for the first time, you'll need an in-system AVR programmer, like the USBTinyISP. 3a) Install the bootloader on the RepRap Motherboard * Use the 6-pin connector to attach the USBTinyISP to the header on the motherboard. * Plug the USBTinyISP into your computer. * Start the Arduino software. * Select "Sanguino" from the Tools > Board menu. (If "Sanguino" doesn't appear as an option, check that you've installed the Sanguino software correctly.) * From the menu, select Tools > Burn Bootloader > w/USBTinyISP. This will start the bootloader installation. When it's complete, you can quit the Arduino software. 3b) Install the bootloader on the Extruder Controller This step is identical to step 3a), with one important difference: the Extruder Controller board is Arduino-based, not Sanguino-based, so you will need to select "Arduino Duemilanove w/ATmega168" from the Tools > Board menu instead of "Sanguino". 4) Copy the libraries The firmware update requires you to install a couple of libraries. Copy all the folders in reprap-gen3-firmware-v1.x/libraries to arduino-00XX/hardware/libraries. If you have older versions of the libraries installed, replace them with the new version. 5) Install the RepRap Motherboard firmware * Connect your USB-TTY cable to the RepRap motherboard and your computer's USB port. Make sure that the colors on the cable match up with the ones marked on the board. * Start the Arduino software. Open the file: reprap-gen3-firmware-v1.x/SanguinoMaster/SanguinoMaster.pde * Select "Sanguino" from the Tools > Board menu. * Select your USB cable's serial port fronm the Tools > Serial Port menu. * Click the Upload button. This is the trickiest step. The v1.1 and v1.2 motherboards require a manual reset when being reprogrammed. There's a small reset button on the motherboard; you should see some LEDs flicker when you press it. The trick is to get the timing right. If you can, start the arduino software from a terminal program and keep a close eye on the output. A few seconds after you hit the upload button on the arduino software, you will see a message in the terminal like this: "Binary sketch size: NNNN bytes (of a NNNN byte maximum)" When you see that message, hit the reset button immediately. If you can't or don't know how to start arduino from a terminal, try hitting the reset button four seconds or so after you press the upload button in the arduino software. Regardless of which method you use, you may need a few tries before you get it right. Don't panic if it doesn't work the first time! 6) Install the Extruder Controller firmware This step is exactly the same as Step 5, with two important differences: * Select "Arduino Duemilanove w/ATmega168" from the Tools > Board menu instead of "Sanguino" * Instead of SanguinoMaster, open this file: reprap-gen3-firmware-v1.x/ArduinoSlaveExtruder/ArduinoSlaveExtruder.pde 7) Try it out! For further information, check out the online documentation: http://wiki.makerbot.com/cupcake-motherboard-firmware-update http://wiki.makerbot.com/plastruder-firmware-update