The TMC3in1 is a Torch Height Controller, Spindle Controller and 5* axis break out board all in one.
The TMC3in1 requires an Ethernet SmoothStepper (ESS) motion controller from Warp9 Tech Design as its motion controller in Mach3.
Mach4 support is currently under development.
The plugin and documentation may be found here on our Files page.
Our forum page may be found here.
* If using Spindle mode, 12 outputs are available for 6 axes.
In THC mode only 4 axes are currently available, and with the next major software release 5 axes will be available for use.