- Joined
- Nov 8, 2011
- Messages
- 1,678
Installed my X & Y axis Igaging DRO's from David on my Bridgeport. I was doing my second job on it and decided to test repeatability/accuracy. I was drilling 4 holes in a rectangular pattern so I located where I wanted my first hole and zeroed both axis. Spot drilled the first hole then went 3.75 -Y spot drilled, then went 11" X spot drilled, then 3.75 +Y spot drilled. Returned to zero and was spot on, same at the #2 position but when I went to my 11" position it read 11.080, I'm not sure if I read wrong initially because I was looking from an extreme angle, I ran to the #4 spot from there and was good then back to 0 and was good. I'm gonna try a couple more tests to see if it was opp. error or something else. I could have mistaken the 8 for a 0 at the angle I was looking from, I also did not lock table at each position either (bad practice).