Bl-mach-v1.1 D302 ✦ Verified & Confirmed

Powered via the onboard USB type "A" connector (often supplied by a 5V 1A USB adapter) or through the PC5V/GND terminals.

If you are troubleshooting a machine that has this drive, listen up.

5V DC (Transistor-Transistor Logic / TTL compatible). Maximum Digital Current Draw: 500mA. Bl-mach-v1.1 D302

The logic section handles data directly from the PC via the LPT data lines. It requires a steady 5V DC supply. This power is drawn either via a dedicated plugged into the host computer or through direct wire terminations on the PC5V and PCGND terminal blocks. High-Voltage Peripheral Stage (12V–24V)

: Dedicated input lines for safety. These connect directly to the E-Stop button, X/Y/Z axis limit switches, and reference homing points. Powered via the onboard USB type "A" connector

All 17 LPT ports are accessible, allowing for the connection of up to five stepper motor drivers simultaneously. Spindle Regulation: acts as a relay output for the spindle switch, while port generates a PWM (Pulse Width Modulation)

Approximately 70 mm x 90 mm x 17 mm, weighing under 130 grams. Architecture and Electrical Protection Maximum Digital Current Draw: 500mA

Connect the STEP (pulse) and DIR (direction) pins for each axis (X, Y, Z, A) to your stepper driver (e.g., TB6600, DM542).