I already bought the G540 and It's been sitting around for a year waiting on me to get to the point I'm at right now. Would you tell me how you remove the input divider? I was an electronics tech for almost 30 years, If someone points me in the right direction I can usually get most anything done with electronics (Excluding PC's....I hate them) I had at first made my own breakout board and driver board from a design posted in the net using an A3979 as the Controller/Driver I.C. but I bought the 540 to save time. I have only completed 1 axis so far and it is untested as of yet.
How much will the precision suffer with the input divider x10? I am building this to make fairly precise parts...I hope.
I am using ACME 1/2-10 rod to drive the axis, I did this on purpose, not really to be cheap but so I could have very movement on a per revolution basis. I am fully uninformed when it comes to the quality of the ball screws available out there that are affordable in the length I need and can always add them later if needed (As you can probably tell I'm not in much of a hurry). So far I have no measurable backlash measuring with a dial indicator on each axis. I'm not too concerned with speed but I don't want to wait 3 weeks for a part either.