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Jerry21/04/2019
This CNC GBRL based driver board kit can control up to 3 stepper motors with the electrical components included. The main board has convenient pin headers to connect stepper motor leads and as many of the limit or other switches you might choose to adopt for your project. The jumpers seen under the stepper driver board location are for the adjustment to configure the stepper board. Default is often good enough. The use a of a Nano form of processor board makes it easy for me to swap with another one if I was testing a new firmware but wanted to keep old one I was comfortable with. Also I can decide to only place the quantity of steppers driver modules as needed. So if I only had one axis with a motor. I could save the other driver boards as spares. The plug fashion of module also allows debugging by swapping module components to see if fault moved with a particular module.
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