Mon Jan 17 17:45:47 CET 2022

Committed the following changes into the next branch on github:

• Python3 port of ddPrint:

  • Converting python files with 2to3 script.
  • Fix integer divisions.
  • Use bytes() and bytearray() instead of strings for binary data.
  • Converted scripts and 'ddtool' utility to use python3.

• Ported ddPrint to Anycubic I3M printer:
  

  • Pin changes for anycubic i3m.
  • Add support for ATC Semitec 104GT thermocouple.
  • Rework temperature measurement: allow different thermocouple types for heated bed and hotend.
  • Homing: add support for additional Z1 stepper motor and endstop.
  • Homing: implement dual-z homing.
  • Adjust getendstops command for the additional Z-endstop.
  • Control mainboard cooling fan (anycubic i3m).
  • Changed initial baudrate to 500 kbaud, 1 Mbaud is to fast for Anycubic i3m.
  • Auto-baudrate: added new printer profile setting 'baudRateLimit' for the Anycubic i3m (it does not work with 1 Mbaud baudrate).
  • Rework and cleanup ddPrint scripts: Added workaround for a problem with the linux cp210x driver used for the Anycubic i3m (CP2102 usb-serial chip): avoid reset of printer on device-open (cp210x seems to toggle DTR line even if '-hupcl' is used).

• Other changes:

  • Environment: renamed env. var $DDDEVICE to $DDPRINTDEV.
  • Firmware build: Set ARDUINO_PORT from DDPRINTDEV environment var.
  • Added new command "continuosmove" for testing, allow simple movements of the printer (without homing) for debugging/initial setup. Note: no acceleration and no endstop-check - dangerous.
  • Removed unused baudrate commandline switch.
  • Cleanup handling of printer-device ($DDPRINTENV).
  • Firmware: moved pins include files into its own folder.
  • Improved plot_mat_profile.py scipt: use python-argparse, display more information.