3D printer motherboard control board MKS-MINI V1.0 RepRap compatible Ramps1.4

The key points of design: 1, the use of better performance of DRV8825 drive instead of A4988; 2, USB to serial port module uses the same Arduino Mega2560 16U2; 3, the mounting hole and Arduino Mega2560 are exactly the same, slightly larger area; 4, a hot bed heating output, but a hot bed thermal interface and a hot bed control signal interface, can add MOS tube module control hot bed; 5, the power supply adopts 7805, more than 1117 is more stable and reliable, but only in support of 12V! 1, MKS-MINI is a customer base of R & D personnel for single head printers don't need a hot bed, special optimization research released a product.