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zelsky2017-04-25 20:11:55
Arduino
zelsky, 2017-04-25 20:11:55

Maximum current for cnc shield arduino v3?

Who worked what is the maximum current for the shield under the arduino CNC for Uno. There are 12-36 volts, but nothing is said about the ampere anywhere, I just know that DC (constant) is better. Thank you.

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Alexander Gusev, 2017-04-25
@zelsky

And now a minute of searching:
Board specifications:
Model - CNC Shield version 3.0;
....
Drivers - A4988 or DRV8825 and others;
...
Drivers A4988 or DRV8825 are inserted in different ways, be CAREFUL!!!
If this is A4988, then again a minute of searching and in the datasheet:

The A4988 is a complete microstepping motor driver with
built-in translator for easy operation. It is designed to operate
bipolar stepper motors in full-, half-, quarter-, eighth-, and
sixteenth-step modes, with an output drive capacity of up to
or DRV8825
DRV8825 - step/dir bipolar stepper motor controller, with output current up to 2.3A (with heatsink) and up to 1.5A - without heatsink. Supports microstepping modes up to 1/32.

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