warner
Aluminum
- Joined
- Aug 29, 2006
- Location
- New Hampshire
Question for you gurus. How much compensation do you guys have to enter through out the course of a day in the offset page for your finishing tools? This machine is supposed to have thermal compensation through temperature sensors, but I am not sure it works properly. We turned them off and had the same amount of offset change that we had to manually compensate for in the X offset in the control. What is this machine capable of? That is my main question that I have asked Okuma; waiting for an answer. The control resolves to 5 places (.00001). We are holding +/-0.00005 on a diameter in non-ferrous material, but cannot leave the machine alone for more than 20 to 40 minutes at a time without checking on it to verify part tolerance. Usually have to make adjustments that often. We have charted the movement of the machine base on how much we have to change the offset, room temp, coolant temp, etc. The chart looks almost the same from one day to the next, so it is predictable, but not enough to code for it. Ideally, we'd like to run lights out, but until we can stabilize it a bit more, that ain't going to happen. Anyone have similar experience with the LB lathes? Or is my tolerance window to small, ie an I asking too much of the machine?