I am still using sheilded cable on both the motor and encoder wires. I have rechecked the encoder wiring and it is correct. I even had someone else look at it just in case I was overlooking something. I have actually had two axis up and running however you never know when they are just going to take off on you. I am presuming that it is doing this in an effort to catch the bouncing encouder readings. At one point I had put a magic marker in the spindle and had the X & Y axis drawing circles on a piece of aluminum, and after drawing a couple it started a third and just took off stopped moved back and completed the circle. I am doing this in Mach using step and direction
Using the tuning software in SPI mode when I run test profiles I don't get clean graphs sometimes the motor runs smooth and I get nice graphs however if I run the same profile again my results do not repeat. If I do manage to get a nice graph with no erronous lines hanging off of it I will not get it twice.
If anyone has any ideas I am all ears. I have put better than two months into this problem and I am looking forward to moving on to the next phase of the project.
Vince  |