CNC Shield v3 step.dir pins vs drivers

Hi guys!

A couple of weeks ago I purchased a CNC from a local workshop and since it’s a pretty DIY machine I’ve been trying to learn as much as possible about the hardware to make the most out of it.

Having said that, most of the tutorials that I’ve seen online use drivers to move the X, Y and Z motors, however, the one I bought only uses the driver for Z and relies on the step.dir pins to move X and Y, do you guys know if it makes any difference or why would someone chose one over the other?

See attached picture (the Z driver didn’t come with a heatsink from the guy who sold it to me)

Motor current.
Small driver boards (A4988, DRV8825, etc) are less than 2Amp, less than 1Amp without heatsink. The larger drivers next to it could be 5Amp or more.
Leo..

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Your CNC likely uses three drivers--a lower power, relatively cheap driver for Z and big beefy just-off-screen drivers for X & Y.

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Thank you very much to both of you, I got so caught up on the tutorials that really didn’t think to investigate what was actually sitting on my layout.

Thanks again!

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