Quote Originally Posted by john-100 View Post
From what I can see from the photos
it looks like the wiring is correct

the main thing is the printer port adaptor is set up correctly with pins 2 to 9 set up as inputs

If its like the the first printerport with pins 2 to 9 set as outputs

you would have the rotary encoder A & B outputs connected to printer port outputs
which could damage the encoder and printer port

John
I tried to reinstall mach 3 to get the port drivers to work properly