Hey- Post up some pics of the contact pattern. When you originally set it up, your backlash was supposed to be .010 as you stated but once you've worn things in, your backlash can increase by a few thousandths which will cause your pattern to look different after some hard use. This happened to me and I had to add in a few thousandths to get the pattern back. An increase in backlash can also cause more gear whine (from my experience). I wonder if your pattern was originally setup at .010, maybe it was less. It also depends on where you are placing the gauge on the gear of the tool. I've messed with this and have seen that depending on where you put it, you can alter the backlash reading by a few thousandths.
|