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Question #: 3621

Question: I bought a, 3-Axis NEMA23 CNC Kit (36V/9.7A/382oz-in/KL-4030.but dont know how to set the dip switches on my drivers. The place I bout the kit from isent very good and support.

Current Solution

That driver (not purchased here) is a standard 3.0 amp driver that will have the dip switch settings on the top of the driver. You will need to determine the amp rating of you motor for the scheme that you wire your motor to the driver (bipolar parallel is recommended in most circumstances but can depend on your power supply output). Check the stepping motor datasheet for your motor to determine this amp rating.

The other set of switches will be configure the microstepping. This will depend on your mechanical setup (i.e. lead screw, rack and pinion, roller chain, timing belt, etc.) and the specifications of such mechanical parts.

This general formula (which can be searched using the Customer Service Live with many examples): step/inch = (natural motor steps * desired microsteps) / (mechanical travel for one motor rotation)

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