Weihong has released newer cards like the PCIe GMC and EtherCAT based controllers. However, the PCIMC 3D 67 remains popular for several reasons:
That said, for new builds requiring more than 6 axes or advanced CNC functions like tool-center-point (TCP) control, consider upgrading.
The PCIMC-3D-67 is found in:
It is not recommended for:
To understand the value of the PCIMC 3D 67, one must first understand the architecture of a standard CNC setup.
Without a robust adaptor, signal degradation, noise interference, and voltage mismatches can cause lost steps, positioning errors, or complete system failure.
Before purchasing or troubleshooting a Weihong CNC Adaptor PCIMC 3D 67, verify these specs against your machine’s requirements: Weihong Cnc Adaptor Pcimc 3d 67
| Parameter | Specification | | :--- | :--- | | Interface Type | PCI 32-bit (5V/3.3V compatible) | | Max Pulse Frequency | 200 kHz (differential) / 100 kHz (single-ended) | | Control Axes | 4 axes (X, Y, Z, A) with linear interpolation | | Inputs | 16 opto-isolated digital inputs (limit switches, probe, E-stop) | | Outputs | 8 opto-isolated digital outputs (relay control, coolant, vacuum) | | Analog Output | 0–10V for spindle speed control (PWM to analog conversion) | | Encoder Feedback | 4 channels of differential encoder input (up to 1MHz) | | Operating System | Windows 7, 8, 10 (32/64-bit with legacy PCI driver support) |
Industrial workshops are electromagnetically noisy. The opto-isolated inputs and outputs on the PCIMC 3D 67 protect your computer and control circuitry from voltage spikes generated by VFDs (Variable Frequency Drives) and contactors.
The PCIMC-3D-67 is no longer in mass production but can be sourced from: Weihong has released newer cards like the PCIe
Typical price (used/refurbished): $120 – $250 USD.
Always verify the revision number printed on the board (e.g., REV 3.0) as pinouts may differ slightly.