current build

The current LeanDog MakerGear M2 build:

• 2014 MakerGear M2 with:
  • 24v power supply
  • silver + black Z motor
• Reinforced heated bed upgrade
• Dual Extruder upgrade
• 4-point bed upgrade
• M3 RAMBO addon board with Raspberry Pi running Octoprint

firmware

Current firmware base is M2E-Production-SnNRd-V105 with changes specific to dual extrusion pulled from the dual extruder firmware. There's also a slight tweak to Z-height for build dimension to adjust for the way we set up the z endstop with the old-style z motor.

flashing

Arduino 1.5.5 is in the repo, which should be used for flashing. Select MEGA 2560 as board. You do not need the RAMBo-specific board library.

UPDATE: Flashing should be done instead via platform.io. Instructions need to be added.

z offsets

Borosilicate + PEI: -3.55

To read EEPROM settings:

M503 ; echo settings from EEPROM to serial output

To set Z offset:

M206 Z-3.55 ; sets z offset to -3.55
M500 ; save to EEPROM