The Cohesion3D Boards come with Smoothie firmware pre-installed.
If you have Windows, but not Windows 10, you need Smoothie drivers.
|Operating System||Need Drivers?|
|Windows 8 and Earlier||Yes, use smoothieware-usb-driver-v1.1.exe|
|Windows 8.1||Yes, but may need to manual install driver, see link below.|
Please see here: http://smoothieware.org/windows-drivers for the full page including the downloads for manual driver install.
For all Windows installations, you may need to Disable Driver Signature Enforcement by following this guide: https://learn.sparkfun.com/tutorials/disabling-driver-signature-on-windows-8/all