MKS Gen v1.4 Information
The MKS Gen v1.4 board was designed from the RAMPS Schematic so many of the pins are the same when configuring your Firmware of choice.
MKS Gen Stepper Compatibility
Fan Wiring Connection
The MKS Gen 1.4 comes with limited connections for your 3d printer’s extruder fans, board cooling fans and part cooling fans. This connection is for your 3d printers cooling fan as it kicks on after your first layer has been completed during the print.
Adding a MOSFET Driver to your MKS Gen v1.4
MOSFET Drivers add low amp hardware and control them with the signal pin. Wire these to the secondary power input on the board, wire up the fans and then connect the signal pin to a free digital pin. Then just modify your firmware configuration to activate the pin for the extruder fan power. These support up to 24v which makes them a great and affordable choice.
MKG Gen v1.4 Summary
Makerbase’s Gen 1.4 is a great cheap 3d printer controller. I really like how easy it was to setup and is directly compatible with Marlin Firmware (the best!).
You can find the datasheet for this board here: MKS Gen Datasheet
Makerbase has also come out with a 32-bit ARM micro controller board line, MKS SBase. Be sure to check it out with Marlin 2.0.