It is also worth while making one common ground for the pcb, motor driver boards and the mass of the machine itself. Ensure that any power/motor drive cables are routed away from the signal wires. Jogging, or running some G-code should show the on-screen coordinates changingīecause of the the risk of crosscoupling between the motor connecting and signal wires, it may well pay you to experiment with capacitors across the switch contacts, screened signal wires, and pull up or pull down resistors. The software should then detect the controller, provided you set the correct serial port, etc. You do not need to connect any stepper motors, or ancillaries, but you must connect the Estop terminal to gnd. To test the controller and software, it is only necessary to connect the serial cable and power supply. The pcb silk screened annotation should be correct. Please check the position of the connections against your pcb. The actual component and connection layout of your pcb may differ from that shown here, certainly the firmware version has been superceded. The controller card, like the software, is under continuous development, and new features and other changes often occur. RWC - DeskCNC controller board DeskCNC Controller Board - Connections
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