Okay just got back in from the shop, Set up a program to run. First I checked all the wires on the Z axis found one suspicious so I fixed it made sure i was solid connection. Started the program and right off Z moves up and up. I stopped the program reset Z rewound to start over. Started the program and all was well for about 15 min. about 1/2 way through the program oh yes, I did set the dir and step pulse on the Z axis to 5 each. Again the Z moved up two times then started to try and cut in the air. At one point the Z went up three times then all at once down .......
Now to the question, I am using Gecko G201 drives three one for each axis, would a drive act like that or more likely the breakout board? This board has embedded on it #D Routers he is The Guy I bought this from and of course he is out of Business today I cannot even get this board again not sure where it came from.
Logic tells me might be wrong here that is why the question, if the drive is bad you would think it would just go nuts and stay nuts. This acts to me more like a chip on the board controlling data flow to the port or something maybe even a bad solider job on one of the pins. I had one drive fail and I can tell you it just stopped working alltogether. Nothing just stop and that is all she wrote.