Can you try the other drivers on the Duex? Change the M584 to match the drivers being used. Is it all Duex drivers or just 8 and 9?
How do I do that? I thought I was supposed to be using drive5 and drive6, no idea why it is on 8 and 9. Not sure if that will make a difference.
Wait- I see what you are saying. In config.g.. I changed it to 5 and 6, will run tests.. Thank you
How do you have the power and ground for the Duex connected?
The same as in the picture of the link you sent, 14G jumper wires from the power in block of the Duet to the power in block of the Duex (checked for polarity)