[rogerknepp]

Just set up the SainSmart 3018 and I cant get the steppers working.

Yes I replaced the plugins folder in the Mach3 directory with the plugins folder provided by SainSmart via CDrom and I moved the mach3mill.xml into the directory.

Not sure what went wrong. Mach3 shows the machine is connected, and when I run the test Gcode the spindle runs, manually turning the spindle on and changing its speed works just fine.

Thanks in advance for the help,

Best,

[vholman]

I bet you have the 3018-MX3 milling tool from SainSmart. I have the same machine and are having the same problems.
The motors run in the correct direction, the limit switches work, can manually move the 3 axis motors and the spindle runs.
When I load a G Code file and click on Start, in the display windows on the Mach3 interface it shows the milling is running at normal speed. But the motors are micro stepping, I can hear them clicking. The spindle is turning at the correct speed.

Looks like I'm the first person to reply to your post. Were you able to resolve this problem?

[rogerknepp]

Unfortunately I have not, but you are correct this is the mx3.