Archim 2 is a 3d printer controller based on the Atmel sam3x8e 32-bit processor (same as Arduino Due) and Trinamic TMC2130 stepper drivers all on one integrated PCB. Archim is named after the mathematician Archimedes.
- Development Status: First batch prototypes of 2.0a hardware were run and available for Marlin Developers or Early Adopter Documentation Contributors.
- Still needs testing and firmware development.
The main difference from Archim 1.0 is the Trinamic TMC2130 drivers. Except for the drivers, the pin mapping and all the other aspects of Archim v1.0 are the same.
- Currently there is a working Marlin firmware called Marlin4due here: https://github.com/ultimachine/Marlin4Due/tree/Archim2
- Marlin4due: Use the git branch "Archim2"
- Marlin 2.0: Further work is going into Marlin 2.0 here: https://github.com/ultimachine/Marlin/tree/bugfix-2.0.x-Archim2
- Both Requires archim arduino addons.
Marlin 2.0 Requirements
Archim2 utilizes software SPI for a dedicated communication bus with the TMC2130 drivers. This requires a modified version of the library TMC2130Stepper. Support for this is being pushed upstream. For now you can get this library here: https://github.com/ultimachine/TMC2130Stepper
Marlin 2.0 Configuration
#define SERIAL_PORT -1 #define MOTHERBOARD BOARD_ARCHIM2 #define EXTRUDERS 2 #define TEMP_SENSOR_0 1 #define TEMP_SENSOR_1 1 #define TEMP_SENSOR_BED 1
#define HAVE_TMC2130 #define X_IS_TMC2130 #define Y_IS_TMC2130 #define Z_IS_TMC2130 #define E0_IS_TMC2130 #define E1_IS_TMC2130 // For initial Archim2 samples the sense resistors are 220 mOhm. // The resistors can be identified on the board with the letters R22 on top of the resistor. #define R_SENSE 0.22 #define X_CURRENT 900 #define X_MICROSTEPS 16 #define Y_CURRENT 900 #define Y_MICROSTEPS 16 #define Z_CURRENT 900 #define Z_MICROSTEPS 16 #define E0_CURRENT 900 #define E0_MICROSTEPS 16 #define E1_CURRENT 900 #define E1_MICROSTEPS 16
- Windows 10, Linux and Mac use CDC interface and have hardware driver built in.
- Windows legacy can use hardware driver: File:RAMBo USBdriver.zip
Lost COM port after flashing: Flashing the board using the Arduino Due core will cause the USB to not function. To fix perform a manual erase