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I thoroughly explain the wiring of the power supply, an optional 5v power supply to provide a 5v digital supply to the parallel breakout board. The steps per inch for many forms of mechanical option are also explained in depth. I have put together another set of wiring instructions that demonstrate a methodology that begins with a simple and straightforward wiring of only one driver and motor and follows with the remaining drivers while testing throughout. Overwhelmingly, I have noticed the electronics pose the most difficulty with new users. Most of the tutorials on this site are created in response to the difficulties I see users having with machines mechanics, structural dimensions and the electronics that drive their CNC machines. Gear ratio for speed (to lower speed of axis compensation, softens the sudden moves).This tutorial will make you an expert in wiring CNC electronics using a parallel breakout board and standard stepping motors and stepping motor drivers.

set speed (THC is not applied when machine accelerates and decelerates). THC control is applied only when machine reaches its max. Select axis that will be controlled accordingly to THC controller measurements. In CNC USB controller software you set THC settings in “File/Settings/Axes/Options”. Note: Mk2 and Mk2/4 controllers have different JOG pinout. JOG 7 represents the input for controlling Z axis in positive direction (connected to UP output terminal of THC controller) JOG 8 is the input for controlling Z axis in negative direction (connected to DWN output terminal of THC controller) THC controller controls the Z axis via JOG connector of PlanetCNC controller accordingly to THC measurements. This wiring scheme itself is sufficient for user to correctly connect PlanetCNC controller and THC controller.

THC controller itself generates “STEP/DIR” signals which drive Z axis accordingly to THC controller measurements: Hardware: There are two common versions of Proma THC controller: Plasma torch is a big source of EMI, so consider a proper filtering. Everything should be properly grounded and earthed. USING “PROMA COMPACT THC CONTROLLER” WITH PLANETCNC CONTROLLERSĪll cables should be shielded.