The Weihong CNC adapter (commonly referred to as PCIMC or PC-IMC) is an interface card/adapter used with Weihong (Weihai) motion controllers and stepper/servo drivers to connect a PC to a CNC machine for real-time motion control. The “3D” wording is often used in community posts to indicate compatibility with 3-axis (or multi-axis) setups or to distinguish a particular driver package version. This guide covers finding the correct driver, preparing your PC, installation steps, basic troubleshooting, and safety notes.
Weihong drivers are rarely distributed as standalone installer files. Instead, 1. Download the Official NCStudio Software
Power down the PC, remove the card, clean the golden PCI contacts with a pencil eraser, reinsert it into a different PCI slot, and try again. Error: "Driver Not Digitally Signed" (Windows 7/10) Cause: Windows blocks the legacy driver from loading.
The CSDN download center has hosted this driver since 2014. Note that the driver there is packaged as a ZIP file and, while it has a high user rating (5 stars), requires a CSDN account and may involve a point-based download system. weihong cnc adaptor pcimc 3d driver download
Windows will detect the driver. Click Install this driver software anyway if a digital signature warning appears. OS Compatibility and Bit-Architecture Warnings
Without the specific driver, Windows will flag the card as an "Unknown Device" or "Multimedia Controller," preventing NCStudio from launching. Where to Download the PCIMC-3D Driver
Follow these steps to safely download and install your Weihong CNC adaptor drivers. Step 1: Secure the Software Package The Weihong CNC adapter (commonly referred to as
Right-click on My Computer , go to Properties , and then select Device Manager . Look for the CNC Adaptor item – it may be flagged with a yellow exclamation mark (⚠️), indicating the driver is missing.
Inside the folder, look for a sub-folder named Driver or files ending in .inf and .sys (e.g., WHCNC.inf ). Step 3: Install the Physical Card Power down your computer and unplug the power cable.
Click , navigate to the extracted NCStudio folder, and select the Driver or Sys subfolder. Error: "Driver Not Digitally Signed" (Windows 7/10) Cause:
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After successful installation, make a backup copy of your sys.dat or ncstudio.ini files. These contain your specific machine pulse equivalents, travel limits, and motor directions.
After reboot, open NCStudio or Weihong’s test software. Go to . You should see “PCIMC 3D Link OK”.