Quote Originally Posted by JAZZCNC View Post
That would be bad advise.! The DQ542MA are Analog drives which is old technology. Yes they may work ok for you or others but that doesn't make them good drives to buy. There is no reason to use Analog drives these days because Digital drives are so cheap and the performance difference is very noticable.
Are you kidding? The OP replaces TB6560 drivers and talks about Arduino...

The DQ542MA may be old analogue technology but it is well working, reliable, runs cold, fast and quiet as well as cheap, and for most amateurs/hobby users, that is more important than fancy modern digital drivers. Maybe one day I will get some digital drivers just for the fun of it, but to be honest, I really don't believe it would show any difference in my case. My machine is as fast as it can get and is much better than most other stepper based machines with direct driven ball screws can do, so I really don't know where digital drives could make a difference. Just because something is "digital" it isn't automatically better...

Also, I am sure you know this, but how well your drivers perform also depends on the motion controller. There is no benefit of faster and more modern drivers if you are limited by the mechanical and electrical design of the CNC.