Extruder Controller v3.7 Dual Head

thingiverse

In need of an Extruder Controller from Makerbot, I discovered they were out of stock and unlikely to restock soon. Undeterred, I decided to create my own, only to find three components on the board discontinued. Thus, I redesigned the Makerbot extruder board with a drop-in replacement that includes upgrades such as dual steptrude compatibility, an ATXV12 connector rated at 300 watts for increased power delivery, and the option to use onboard voltage or 5V from the PSU. The upgraded MPU is a 328 with more RAM and flash, allowing for further hacks. I plan to manufacture PCBs locally; if interested, reach out to me. Firmware update required. A subsequent design change allows for the use of a daughter board for the output stage, enabling stacking for increased power output. PCBs have arrived, but one socket had incorrect hole size, requiring hacking. The parts list includes BSS84P, LM358DG, ATMEGA328P TQFP-32, PSMN7R0-30YL resistors, capacitors, LEDs, connectors, and more.