Stratasys

This is software to read and write data on a Stratasys cartridge EEPROM.

You can use this code to 'refill' an EEPROM or build a cartridge EEPROM image from scratch.

Installation

Dependencies

• python 2.7
• pycrypto

Cartridge Usage

Print information about a cartridge

You have to provide the machine type (fox, prodigy, quantum, etc.) and the EEPROM uid, in hexadecimal form without the '0x' prefix. Note that the EEPROM uid to use ends with "23" (which is the family code for the EEPROM device).

$ ./stratasys-cli.py eeprom -t fox -e 6b0000014d476223 -i cartridge_dump.bin

The EEPROM uid should end with '23'. You may have to reverse the byte order. Say you have "233a38b1020000c0" - you should reverse it to be "c0000002b1383a23".

If you provide the '-r' option, arguments to pass to stratasys-cli will be printed to help you recreate the cartridge.

The input file must be a binary file.

Create your own cartridge

By providing all the required information, this software will provide a new valid EEPROM image that you can write to a cartridge.

$ ./stratasys-cli.py eeprom --machine-type fox --eeprom-uid 6b0000014d476223 --serial-number 1234.0 --material-name ABS --manufacturing-lot 1234 --manufacturing-date "2001-01-01 01:01:01" --use-date "2002-02-02 02:02:02" --initial-material 11.1 --current-material 22.2 --key-fragment 4141414141414141 --version 1 --signature STRATASYS -o random_file.bin

All the dates are in international format: yyyy-mm-dd hh:mm:ss

You have to provide the correct machine-type and the valid eeprom uid. You can customize all the rest.

The EEPROM uid use to end with '23'. You may have to reverse it. Say you have 233a38b1020000c0, you should reverse it to be c0000002b1383a23.

The generated file will be 113 bytes in size. You can complete the file with zeroes if you want to make it 512 bytes long, the usual EEPROM size.

List supported material

If you want a list of all known material, simply run the following:

$ ./stratasys-cli.py material --list
0       ABS
1       ABS_RED
2       ABS_GRN
[...]

Use those names when creating a new cartridge.

Errors

If you have an invalid checksum error, the code was not able to decrypt your EEPROM correctly. Verify that your EEPROM file is valid, double check the EEPROM uid.

If it still doesn't work, fill a ticket on Github.

Configuration Code

This script is able to generate configuration code for your printer. There are actually 3 different codes available:

• configuration
• setup
• clear

We're only able to generate configuration code for now. These codes can unlock specific features of your printer.

Information about a configuration code

To decode a configuration code, simply run the following:

$ ./stratasys-cli.py setupcode -d AAAA-BBBB-CCCC-DDDD

Create your own configuration code

You can create your own configuration code to enable specific features.

For example:

$ ./stratasys-cli.py setupcode -e -n 1234 -s 900mc -t configuration -l large -b 1x -m ABS-M30 NYLON PC-ABS -v 1

Will generate a configuration code for a printer type 900mc.

The available options:

• -e : encode
• -n : serial number (format ABCD)
• -s : machine type
• -t : code type (put configuration unless you know what you're doing)
• -l : envelope size
• -b : build speed
• -m : supported material (you can put a list of materials after the -m separated by space)
• -v : version of the code (put 1 unless you know what you're doing)
• -k : specify the key that should be used to encode (OPTIONAL)

For help on available values, you can run the following:

$ ./stratasys-cli.py setupcode --help

Interesting fork / rewrite

• slaytonrd/CartridgeWriter - rewritten in C# by slaytonrd

Interfacing with the cartridge

Bus-pirate

• Use the MISO wire (orange) for the data
• Use the GROUND wire (black) on the ground
• Connect the 5V (grey) on the pull-up voltage input (blue)

Use the following schematic as a reference:

Bus pirate

    grey    >---+
                |
    blue    >---+
                 eeprom
                +------+
    orange  >---| Data |
                |      |
    black   >---| Gnd  |
                +------+

Use the scripts available in the helper directory.

To read an eeprom:

$ ./bp_read.py /dev/ttyUSB0 eeprom.bin

To write an eeprom:

$ ./bp_write.py /dev/ttyUSB0 eeprom_new.bin

Raspberry Pi

• Use the GPIO 4 (pin 7) for the data
• Use any GROUND (pin 6,9,14,20 or 25) on the ground
• Use the 5V Power (pin 2) to pull-up the data line using a ~4.7k resistor

Use the following schematic as a reference:

Raspberry pi

     5V     >---+
                |
           4.7k Z    eeprom
                |   +------+
    GPIO4   >---+---| Data |
                    |      |
    GROUND  >-------| Gnd  |
                    +------+

Then you'll need to probe 2 kernel modules:

$ sudo modprobe w1-gpio gpiopin=4
$ sudo modprobe w1-ds2433

You should now see your eeprom appearing:

$ ls -l /sys/bus/w1/devices/w1_bus_master1
23-xxxxxxxxxxxx/
[...]

To print the eeprom uid:

$ xxd -p /sys/bus/w1/devices/w1_bus_master1/23-xxxxxxxxxxxx/id
23xxxxxxxxxxxx

To read an eeprom:

$ cp /sys/bus/w1/devices/w1_bus_master1/23-xxxxxxxxxxxx/eeprom ~/eeprom.bin

To write an eeprom:

$ cp ~/eeprom_new.bin /sys/bus/w1/devices/w1_bus_master1/23-xxxxxxxxxxxx/eeprom

Acknowledgement

Special thanks to the Stratahackers group. Without them, nothing like this could be possible. They provided moral and technical support!

Thanks to ashanin for the uPrint support.