5495
« on: April 09, 2013, 02:34:15 PM »
1.
I still dont really follow on the auto zero, maybe I am not understanding how you have your work offset configured but normally you home, move to where you want the XYZ zero to be then Zero the XYZ DROs and thus your work offset is achieved. Assuming you do not zero these again then the offset should be the same the next time you start Mach and home, assuming of course you have persistent offsets chosen.
2.
If switches are not accurate then really you need to touch off a known point to set work offsets each time you start Mach.
3.
Kind of sounds like its either the Step pulse that is the wrong state for your drives or possibly just the large following error you have.
4.
Ok you say Cycle Stop does a good job, are you pressing that whilst in motion or just at a standstill?
Table moving to wrong position? Is it showing that wrong position in toolpath view?
5.
Sounds funny that if they are indeed 2:1 and I presume its original ballscrews?, that you have to have different values in motor tuning than from calculated values.
Personally I much prefer calculation as that way it is equal in accuracy to the hardware you have where calibration is only as accurate as your measuring.
Hood