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Pcimc 3d Driver Work: Weihong Cnc Adaptor

Weihong CNC Adaptor & PCIMC-3D Driver: Integration and Operation

Step 1: Hardware Installation

  1. Power off the PC and disconnect the power cable.
  2. Open the PC case.
  3. Insert the PCIMC card into an available PCI slot (not a PCIe slot, unless your specific model is PCIe).
  4. Secure the card bracket with a screw.
  5. Close the case, reconnect power, and turn on the PC.

2. How the system is organized (logical layers)

  1. User/Program layer

    • CAD/CAM generates G‑code or toolpaths.
    • Operator initiates jobs via control software.

  2. Motion planner / controller software

    • Parses G‑code, does interpolation (linear, arcs), kinematic transforms, feedrate smoothing and look‑ahead.
    • Produces step/dir (or pulse) streams for each axis and synchronizes spindle and auxiliary outputs.

  3. Host interface / motion card (PCIMC or Weihong controller) weihong cnc adaptor pcimc 3d driver work

    • Receives digital motion commands from software (via memory‑mapped I/O, driver API, Ethernet, or USB).
    • Converts high‑level motion into timed step pulses, direction signals, PWM for spindle, and manages Encoder inputs, limit/home switches, and safety interlocks.
    • May implement hardware motion planning for jitter‑free pulses independent of OS latency.

  4. Driver electronics (3D/stepper/servo drivers)

    • Accept step/direction/pulse signals and produce motor phase currents.
    • Provide microstepping, current control, decay modes, and fault reporting (overcurrent, overtemp).
    • For closed‑loop servos, accept encoder feedback and sometimes implement commutation.

  5. Motors and mechanics

    • Steppers or brushless/DC servos drive lead screws, belts, or ball screws.
    • Mechanical transmission determines achievable resolution, torque, and backlash.

  6. Feedback and safety

    • Encoders, limit switches, probes, e‑stops and input interlocks feed back to controller for position verification and safety shutdown.

8. Example numeric calculation (steps per mm)

Given:

Steps per mm = (motor_steps_per_rev × microstep) / screw_pitch = (200 × 8) / 8 = 200 steps/mm

Set this value in control software for proper scaling. Weihong CNC Adaptor & PCIMC-3D Driver: Integration and

Setting the Driver's DIP Switches for Weihong: