Originally Posted by
Art Mann
Why are so many people worrying about dual Y-axis drives when most of the best built commercial machines do it that way and it is the cheap chinese machines that don't?
Beats me.
A dual axis drive system syncronized with Mach3 or LinuxCNC works so well that it has become a common way to build these machines no matter what drive letter a person assigns to it. Ian insists that he just doesn't want to do it that way. Doesn't bother me. He can build his machines that way if he wants to. I have two machines using ACME lead screws on one and R&P on the other that are as reliable as they need to be. I have run 8 hour 3D carvings with 60+ Mb gcode files and it goes right back to 0,0,0 each and every time the job is completed. The Chinese and/or Ebay didn't create any convention with respect to drive letter usage. There are common ways to do it for certain types of machinery, but there is no worldwide standards committee approved convention that rules how we all have to do it.
CarveOne
http://www.carveonecncwoodcraft.com