The ARD-CNC-Kit2 is a specially developed expansion board that enables the control of CNC machines via an Arduino board. This kit is characterized by its compatibility with GRBL v0.9, a popular open source software developed for CNC applications. By supporting GRBL v0.9, the ARD-CNC-Kit2 can utilize advanced features such as PWM (pulse width modulation) to control spindle speed and the implementation of soft limits, which are used to keep the machine within safe operating limits. These functions are particularly important for users who require precise and safe machine control.
The kit enables the control of up to four stepper motors simultaneously, with each motor controlled by a DRV8825 motor driver. These drivers are renowned for their efficiency and reliability and are supplied with heat sinks to ensure optimum heat dissipation. This minimizes the risk of overheating and resulting damage or loss of performance.
In addition, the ARD-CNC-Kit2 offers extended connection options for machine control. It has special connections for limit switches on each axis, which enables additional safety and accuracy during machining.
In addition, there are connections for spindle control and cooling mist, which can be used for special CNC machining operations such as milling metals or other materials that need to be cooled during machining.