When installing the hardware, please pay attention to the following points:ġ) Incorrect connection of +/- may destroy your devices, even cause fire.Ģ) Please make sure to insert drivers in correct direction, or it may burn the mainboard and drivers, specific installation direction please integrating Arduino CNC Shield V3.0, refer to the data sheet of motor drive. Version 3.00 of the board added a jumpers to configure the 4th axis(Clone the other axis’s or run from Pin D12-13), Comms Header(RX+TX, I2C) and a Stepper Control Header(All Pins needed to run 4 steppers)Ĭonnect the components according to the actual situation, such as motors, limit switches, lasers, motor drives and so on.I2C can later be implemented by software to control things like spindle speed or heat control. Serial Pins ( D0-1) and I2C Pins ( A4-5) have their own break out pins for future extensions.External GRBL Command Pins have been broken out allowing you to add buttons for Pause/Hold, Resume and Abort.Spindle and coolant control has their own pins.(We do advice that an extra emergency button also be installed that cuts power to all machinery. This does the same as the RESET button on the Arduino board. EStop – These pins can be connected to an emergency stop switch.This makes it easier to install two limit switches for each axis. Limit switch pins have been doubled up so that each axis has a “Top/+” and “Bottom/-“.In addition to have all the GRBL function pin, Arduino CNC Shield V3.0 also have some additional pins to achieve more features: After insert CNC Shield V3.0 into OSOYOO Basic board, and installed GRBL firmware then you can quickly DIY a CNC engraving machine. There’re 4 slots in the board for stepper motor drive modules, can drive 4 stepper motors, and each step stepper motor only need two IO port, that is to say, 6 IO ports can quite well to manage three stepper motor, it’s very convenient to use. CNC Shield V3.0 can be used as drive expansion board for engraving machine, 3D printer and other devices.
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