1 it has right-angle coordinate robot and provisions of extruder.
Extended to the 2 control and other accessories.
The 3 heater / fan output and 3 thermistor circuit MOSFET.
4 fusion 5A additional safety and protection
5 heating bed control 11A fuse additional
6 for 5 Pololu stepper drive plate
7.Pololu plate dynatron, so they can be easily replaced or removed for future design.
The 8.I2C and SPI pins left for future expansion.
9 of all MOSFET hooked into PWM pin is universal.
10 servo type connector for connecting to a terminal block, a motor and a light emitting diode. These connectors gold-plated, rated current is 3A, very compact.
The 11.SD card add – is now available from Kliment – Sdramps
12.LED indicates the heater output
The 13 option 2 motors are connected to the Z Prusa Mendel