Go Down

Topic: Steppers for CNC (Read 6642 times) previous topic - next topic


I don't know the products but if they are reasonably new versions they have probably been written with USB in mind. Presumably the software assumes the CNC device has a USB connection?

Not really. A parallel port interface is much more common and/or would be the standard for Mach 3 or Linux CNC.  You can find USB interfaces but they are pretty expensive (compared to a parallel port interface card you could throw in a slot in your computer), will have a dedicated microcontroller translating the protocol used, and requires the software to support that proprietary interface.

With a parallel port the 17 pins (8 pins of a parallel port are GND only) are treated like a general purpose IO; the software will typically let you assign the pins any way you like, and 17 pins is plenty for three step/dir stepper interfaces, a spindle drive, limit switches, E-stop, etc. Parallel port "breakout" boards are just a bunch of handy connectors and optical isolators.

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131